235 of 242 people found the following review helpful
5.0 out of 5 stars Very nice scope, but please read about customer service.
The five stars represent my opinion about the scope. I'm a novice at astronomy, so I can't really make any comparisons. I can tell you, however, that this scope does everything I've ever read about it. I pulled it out of the box and put it together and it went to work just the way the book said. I've done some solar viewing and a little digital astrophotography. My major...
Published on January 23, 2007 by R. Bunch
128 of 144 people found the following review helpful
2.0 out of 5 stars Okay Tube, Bad Mount
I've used this telescope since June 2009. The NexStar 8 SE provides pretty good views, but the computerized mount is literally a piece of junk. I'll tell you why.
Problems with the mount:
1. Battery compartment: Lots of space taken up for batteries, but batteries only work for a few minutes. This thing eats batteries, and doesn't come with a power...
Published on February 21, 2010 by Andrew Senske
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235 of 242 people found the following review helpful
5.0 out of 5 stars Very nice scope, but please read about customer service.,
This review is from: Celestron NexStar 8 SE Telescope (Electronics)The five stars represent my opinion about the scope. I'm a novice at astronomy, so I can't really make any comparisons. I can tell you, however, that this scope does everything I've ever read about it. I pulled it out of the box and put it together and it went to work just the way the book said. I've done some solar viewing and a little digital astrophotography. My major purpose for this scope is in the area of deep-sky astrophotography without spending multiple thousands of bucks. It may be a little overkill for a novice like myself, but I wanted a scope that I wouldn't outgrow, and one that is easy to accessorize. The only thing I can nit-pick on this scope is the motor drives on the mount. They work fine, but they make a little too much noise, and the sound indicates to me that the gear train is not high quality components. It does seem to run very smooth, though! And accurate, every time! If YOU take the time to accurately set it up and aim it, then IT will put what ever you ask for right in the middle of your field of view. The battery holder is a little tight on the 2000mah NiMH AA batteries that I bought for it, but since I plan to use the AC adapter I bought for it, that's not really a big problem. I wish Celestron had designed the bubble-level INTO the base of the mount rather than just leave it loose for the user to install with the double stick tape on it's bottom. I bought a larger level from an RV store and epoxied it to the top of the battery cover. It seems to be very accurate and my alignment seems to work every time. I recommend a good variety of eyepiece filters, a solar filter for the main aperture, a 45deg. upright diagonal, and several eyepieces to cover the range from about 4mm to 32mm. Zhumell and Celestron both offer good filter/eyepiece sets at very good prices here on Amazon. For the astrophotographer, there's a whole world of accessories to chose from for this scope, and this is where I learned just how bad Celestron's customer support is! A lot of accessories out there state they are compatible with the Celestron C8 and 8i scopes, but this 8SE is so new that it isn't mentioned very often. I was concerned about the differences in the three 8" scopes, so I submitted an inquiry to Celestron's customer support, asking for a description of the differences in the C8, 8i and the new 8SE scopes. After four days they closed my ticket without answering my questions, so I submitted another request. After 14 days there was no response. I called them and the fellow I talked to had to put me on hold three times for about ten minutes each while he went to ask someone for answers. Shouldn't they man the tech-support phones with people that know the differences in their own products? All I was asking is if the visual back from a C8 will fit the 8i and 8SE, and if the solar filters for a C8 will fit the 8SE. He didn't know! I just hope my scope doesn't break because their tech support is less than helpfull. [...]. Just don't expect Celestron to be there for you without a lot of prodding.
By the way, for anyone considering this scope, the best info I've found is that all of the eyepiece accessories that will fit the rear cell of the C8 will also fit the 8i and the newer 8SE. The Celestron tech had to go actually test fit a visual back from the C8 to an 8SE to find out! He did say that any filters for the main aperture (the big end where light enters) of the C8 will not fit the 8i or 8SE! There was a significant dimension change made there.
I hope this helps eliminate the frustration I had in selecting and buying any accessories that anyone buying this scope may have. Happy star-gazing!
102 of 107 people found the following review helpful
5.0 out of 5 stars Amazing Scope,
This review is from: Celestron NexStar 8 SE Telescope (Electronics)I love astronomy and have to say this was my first real purchase of a telescope. I placed my order and in 2 days my product was at the door. I was shocked how fast it came. I was very excited about viewing the planets and hopefully some deep sky objects. Novice would be the best way to describe my viewing experience. However, I was able to get the scope setup and struggled with the star alignment. Then I used the CD that came with the product and got to know the night sky. Yes I know, read the material first then play but I was like a kid in a candy store and just couldn't wait to start viewing.
I did get the sky align to work and then tested the alignment by having it go to the easiest target in the sky. (The moon). Boom it was center view. In a full moon phase right now so the obvious light polution is tremendous but I was able to view Jupiter and see 3 moons (due to the light conditions it wasn't to detailed). Everything else was bleed out by the moon.
I read the reviews before I purchased and did alot of research on scopes and have to say this one hit the nail on the head. It does take 8 AA batteries to operate and I read someone elses review that the batteries do not last long, so I purchased the power pack along with it.
The power pack was a good idea however, take heed that it plugs into where the scope rotates and if you are not careful you can find that your power cable is getting wrapped around the scope as it rotates.
GPS - I was considering purchasing the GPS but decided that google earth will provide me the Long and Lat just as easy.
Leveling - the little bubble level they give you works fine but make sure you keep track of that little bugger cause it's very easy to loose. They give you some double sided tape which proves to by useless because it throws off the bubble. Don't bother with the tape and just place it on the mount to level it.
Accessory pack - I did purchase the Celestron 94304 Nine-Piece Accessory Kit and feel that was a wise purchase. You get the barlow scope, some filters and my son loves the "shakey flashlight" (what he calls it).
Motors - Yes the motors are just a tad noisy but not that bad. It lets you know that it's working :). It tracks very well.
Mounting your scope: Do not make the same mistake I made and just slide it into it's mount and not pay attention to the vertical alignment. Make sure you mount it far enough in so that your scope can go vertical without it hitting the angle lens and preventing it from hitting it's target.
Finder Scope: Very nice- and once aligned works great. I love the red dot LED. It's nice to be able to adjust it's brightness so that it doesn't bleed out what you are trying to target.
Over all. If you are just starting out in astronomy and love to view the night sky. If you ever sat outside at night and wished you owned a telescope because it was a great night to view some planets and deep sky objects. If you were afraid of a telescope because your night sky knowledge was limited. This is the scope for you. I can't say enough good things about it. Not only does it find the stars and planets for me it is also teaching me as it goes.
62 of 67 people found the following review helpful
5.0 out of 5 stars Excellent Telescope at a Great Price,
This review is from: Celestron NexStar 8 SE Telescope (Electronics)In brief I was thoroughly satisfied with the quality of the telescope. I havent yet used it much, but in about 2 weeks or so that I have owned the telescope, I have used it each night irrespective of the seeing conditions.
I will divide the entire review into two parts, likes and dislike/want.
Things that I dislike or would want.
Power consumption is really high... I learnt that the very first night. I had to terminate my viewing session in about two hours. I was using brand new Duracell AA battries with a lot of moving. I would have really like if Celestron was a little more direct about the fact that power comsumption is really high, but then again I could have missed it! I would really recommend buying the power tank.
Levelling the telescope is really important and Celestron has even provided with a bubble level. I would have really liked if the bubble was built into the mount.
Things that I like...
In one word... everything else. The optics are really good and I get clear crisp images. The GoTo system, called SkyAlign here, is easy enough to use. I had a little trouble getting it up and running but found a good thread on Cloudynights by MarvinTheMartian and followed everything there to get a really good alignment.
First light Report:
Saw Jupiter with the four moons and it was spectacular. I could even see the clouds of Jupiter. Moon is probably the best target to view, however dont make the mistake I made, see moon on a full moon night without any filter! Its just too bright!
I see from suburban areas, and have a lot of light pollution. Even with all that I was able to see some of the deep sky objects. I have seen M31 and am hoping for some more time and some clear skies to continue viewing.
Portability: Though people may say this is portable, I would not necessarily agree with them. Its not as portable as I would call portable. If you are like me, carrying it around like me, I would recommend buying a carrying case at least for the OTA.
Final Verdict: If money is not the concern, go ahead and buy this telescope. I really loved everything about this telescope and the dislikes are trivial (and hence the 5 star rating). Big aperture will keep me occupied for quiet some time before I move to my next, a 14"!
128 of 144 people found the following review helpful
2.0 out of 5 stars Okay Tube, Bad Mount,
This review is from: Celestron NexStar 8 SE Telescope (Electronics)I've used this telescope since June 2009. The NexStar 8 SE provides pretty good views, but the computerized mount is literally a piece of junk. I'll tell you why.
Problems with the mount:
1. Battery compartment: Lots of space taken up for batteries, but batteries only work for a few minutes. This thing eats batteries, and doesn't come with a power cord! Further, the battery compartment design is poor, with two battery holders dangling by their wires. The battery holders must be placed a certain way after batteries are installed into them. There's only one way to place the battery holders and still be able to close the compartment cover, but there are a few ways to place the battery holders incorrectly. If you want to be able to close the battery compartment, you'll probably have to look up the instructions on the internet. You'll need to by the optional AC power cord (which is what I did since I'm always observing within an extension cord's length of an electrical outlet), or the 12V cord along with a 12V battery in order to use this scope.
2. Noise: I know everything seems louder at night... in the dark... when you're supposed to be quiet. But slewing at moderate to fast speed with this thing is like a freight train coming down the tracks. It's not a problem if you're not near anyone, but the many times I've been in my backyard or up at the lake with this scope, I've worried about disturbing neighbors.
3. No clutch in azimuth: This means you can't move the mount in a sideways direction without using the power-hungry, fantastically noisy motor. You can move the mount in altitude manually, but not in azimuth. Truly a bummer.
4. Spur gears: There's a lot of slop in the gears, so when you begin to slew the scope it often doesn't actually begin to move for a short period of time. No big deal, but it's annoying.
5. Time isn't saved: As others have mentioned, having to enter the time each time you turn on the mount is just ridiculous.
6. Cheap hand controller: The screen on my hand controller came loose and tilted within a couple of weeks of use. LCD screen doesn't work well in cold weather. I know this is a common problem with these types of controllers, but cold weather is a common condition for astronomical observing. Celestron and all other manufacturers really should take this into account and install a heating element in the controller. (I know all the workarounds - use handwarmers, put the controller in your jacket, attach your own heating element, etc. - but they're just not convenient.) There's obviously no intention of minimizing power consumption with this mount, so adding a heating element wouldn't be a big deal.
7. Built-in bubble level: There isn't one.
8. Defective (at least mine is): I'm in the process of sending my mount to Celestron for warranty repairs because it no longer slews properly at slew speeds slower than 8 or 9 during alignment. So, at a slew speed of 5 which is the default for alignment, the mount doesn't move at all. It's too bad I have to pay for sending it in, when I'd really rather just get a better mount.
Problems with the tube:
1. Focus knob: The focus knob shakes and moves the mirror way too much. If I didn't know better I'd think it was a defect. But I know better. It's not considered a defect. It's just a bad design that amateur astronomers apparently don't mind too much.
2. Accessory mounting holes: Ideally, you'd have a red-dot finder and 9x50 finderscope mounted to the top of the tube. You can't do that with this scope unless you're willing to get out your drill. There are mounting holes at approximately the 2 o'clock position and 4 o'clock position, so most people will probably use those using the topmost holes for the red-dot finder and the lower ones for the magnified finderscope. There should be another set of holes on the top of the tube somewhere between 10 and 2 for the purpose of mounting accessories.
There are a few things I like about the scope:
1. Portable: Compared to my 10" dob, the 8 SE is quite portable, and this is the primary reason I bought it. I've been able to take it to the lake (where the sky is much darker) on many occasions.
2. Tracking: Once aligned the mount tracks pretty well. I've left the scope tracking for over an hour, to find that the object of interest was still in the field of view when I returned.
For me, the bottom line is that the NexStar 8 SE has too many problems, and shouldn't be considered by anyone new to astronomy. Considering the design quality, the 8 SE is overpriced. You can get a bigger and better telescope for less than half the price if you're willing to give up the computerized object locator and the tracking ability that's inherent in such a mount. Trust me. If you're a beginner in reasonably dark skies (meaning you can actually see and locate stars with just your eyes) then a computerized mount like this one will frustrate you far more than it will help you.
30 of 31 people found the following review helpful
5.0 out of 5 stars Excellent Telescope !,
This review is from: Celestron NexStar 8 SE Telescope (Electronics)When I opened the package I was surprised the quality of the product. I went right away to test it in my first night. Due to Florida's terrible rainy days lately it was mostly cloudy yet I was able to see Mars, Saturn's rings, Jupiter's moon and clouds, even behind a tinted glass! That's how high quality these optics are. Able to gather celestial light even with such terrible viewing conditions.
The eyepiece that came with it(25mm)is of very good quality itself, I bought a an eyepiece set but I still find myself using it a lot. The tracking does drain batteries fast so I had no choice than to upgrade to an AC power supply. Due to high humidity, dew was a problem on the optics, had to buy a dew shield.
To summarize, every penny spent on it was well worth it. This really isn't an entry level telescope so it does cost a lot but it also shows on the quality and what you can see through it.
I definitely recommend buying this telescope if you are serious about astronomy or want a real good telescope.
It's no wonder this is the most popular telescope these days.
~Leonel & Lennier
Just an update on the reliability of this product (mount/optics) for anyone interested on its longevity. After 2 years of use it still works as great as the first time. No fail electronics or jammed magnifier. Works perfectly; thus in our opinion it was a great investment.
30 of 32 people found the following review helpful
5.0 out of 5 stars Excellent, except...,
This review is from: Celestron NexStar 8 SE Telescope (Electronics)I have a professional degree in astronomy before turning to medicine. I also have over 40 years of observing experience. This is a wonderful off-the-shelf telescope for the amateur observer who is mainly interested in visual observing. Optical and mechanical quality and image stability are excellent. I use a digital camera with it for planetary and lunar work, but I don't do deep-sky photography. This type of alt-azimuth drive/mount is not really designed for serious deep-sky photography, but it is terrific for visual observing. My only complaint is that it does not have an onboard memory clock, so the time, date, and location must be re-entered with each use. That is a crazy software design. The other complaint is that the unit I have does not know about the change in daylight savings time dates that was made last year. It is a small hassle, but a hassle nonetheless.
28 of 30 people found the following review helpful
5.0 out of 5 stars Fantastic Go-To Telescope,
This review is from: Celestron NexStar 8 SE Telescope (Electronics)I recently upgraded to the Celestron Nexstar 8 SE. I had the Nexstar 4 GT before it. I have to say that the Nexstar line has come a long way in 4 years. The hand controller now has a larger database of objects that the scope will go to, and more alignment methods have been added. With SkyAlign, you can have the scope aligned in no time. I also like the fact that the hand controller and motor controllers are firmware upgradable now. This scope's go-to capabilities are fantastic. Once I used SkyAlign to set it up, I was finding nebulas and galaxies that I had never seen before. 8 "AA" batteries do not last long in this scope, so if you plan to use it for hours at a time, I would suggest that you purchase the AC Adapter, Car Adapter, or Power Tank to go with it. Anyway, the Nexstar 8 SE is a super scope. I love it!
31 of 34 people found the following review helpful
2.0 out of 5 stars Celestron Customer Service,
This review is from: Celestron NexStar 8 SE Telescope (Electronics)While the Celestron 8SE is an easy telescope to set up, and moderately easy to use the company customer service leaves much to be desired. The scope I received lasted 3 days before the hand controller failed. After never receiving any email responses to web requests for customer service I called. they agreed that the hand controller failed (I saw many discussions of this on the web). They wanted me to send it in as well as the rest of the mount. I paid more than $100 to overnight the unit to Celestron and after 5 days of silence I called and they said it was their policy to have a 30 day repair time for warranty. Several email queries to status havegone unanswered.
The customer service and turnaround times for repairs under warranty are excessive and the company has no sense of urgency that you spent thousands and are sitting with a useless piece of equipment after 1 week of use.
17 of 17 people found the following review helpful
5.0 out of 5 stars Optics are an A+ with some minor ease of use issues,
This review is from: Celestron NexStar 8 SE Telescope (Electronics)The Celestron 8SE is a fantastic intermediate telescope. I have been using it now for roughly 3 weeks and feel I can give a decent review at this point. It arrived in perfect condition and took no time at all to assemble, perhaps 20 minutes from box to first light. I had some issues when I first tried to align the telescope, but these were easily sorted out. I am not sure why you need to enter in your location and then also enter in the timezone and whether daylight savings is observed. This tripped me up initially because I entered in EDT instead of EST because I had forgotten that standard time is fall/winter and daylight time is spring/summer. Once I corrected this mistake, the computer aligned no problem using either the solar system or two star alignment methods. It would be nice if Celestron would just ask you which city you live in and the date and allow the computer to automatically know the timezone and daylight savings time practices at that location. Annoying, but definitely not a deal breaker.
Within 5 minutes, I was able to slew the scope to Jupiter, the Orion Nebula, and the moon. All views were EXCELLENT. You can easily see the cloud bands on Jupiter and 4 of the moons using the 25mm eyepiece. I'd say the sweet spot for planetary viewing was around 150-200x, which I acheived using the included 25mm eyepiece and a 2x barlow. This seems to give me optimal brightness, contrast, and magnification. My seeing conditions have been terrible, so I am sure that you could go higher under better conditions, but even at this magnification the view is amazing. When looking at the moon, you can easily approach the highest useful magnification of the telescope (roughly 400x) while maintaining a crisp, sharp view of the craters. Even under bad seeing conditions I could push the magnification to 350-400x using a 6mm eyepiece and still obtain sharp detail. The Orion Nebula clearly shows up as a ghostly cloud which takes up roughly 1/2 the field of view using the included 25mm Plossl. Backing off to a 32mm eyepiece increases the brightness and detail at the expense of magnification. I am sure that using a focal reducer would further enhance the viewing of nebula and galaxies.
Now to address some of the concerns people have raised about this telescope:
- NOISE: I really don't get this complaint. Even at the highest slew speed, this motor is much quieter than I expected. There is some SLIGHT noise, but if you are living in a house and out on your driveway or in your backyard NO ONE will hear this thing. Seriously, this is one compaint that I think is completely unfounded.
- VIBRATION: Yes, this can be an issue with the single-arm design. I ordered the vibration supression pads when I bought the scope and tried focusing / viewing with and without them deployed. Without the pads, you do indeed get some vibration when trying to focus. The vibration quickly dissipates, so if you have any patience whatsoever when focusing, it's a non-issue. I could see, however, what people were talking about. It does shake for a few seconds when you touch the focus knob. With the pads in place, there really is NO VIBRATION when focusing. I'd say the pads are an excellent buy and worth the minimal investment.
- SLOP IN GEARS: For me, this is definitely the biggest issue in the design. But, it really comes down to how patient you are when both aligning the scope and then fine-tuning the alignment with manual motor adjustments. If you manually slew to an object using a high motor speed, it will take some time for the tracking drive to work through the slop in the gears you have created to maintain the image in the eyepiece. This can lead to some image drift, especially at higher magnifications. I have found the following procedure works well. First, prior to aligning, get a bright object in the eyepiece and pay close attention to the movement of the object across your field of view due to the rotation of the earth. For me, this was from right to left in the field of view. To get optimal alignment, I then use the course motor to get the alignment object in the far right side of my field of view and then use the fine motor to push the object into the middle of my field of view before hitting align. In other words, use your fine motor control in the direction the object would normally drift without a motor. This maneuver eliminates a lot of the slop in the gears and ensures the alignment object is exactly where the computer thinks it is. I would also recommend a 25mm eyepiece when using the course motor and then switching to higher magnification when centering the object with the fine motor. Both of these steps have greatly enhanced both the tracking and finding of objects. When doing any fine tuning of the alignment after the computer slews to a selected object, be sure to use fine motor controls to again eliminate slop forming in gears. Once the slop is played out of the gears, a centered object will stay that way for hours. It just requires some patience and practice. For me, this is an ease of use issue. For others, it could be a deal breaker if they feel the computer does not do a good job of finding and maintaing objects in the eyepiece. Really, the computer is excellent. It is the motor that is not optimal and leads to these issues.
- BUBBLE LEVEL NOT BUILT INTO TRIPOD: This is really nit-picking. Celestron does include a stand-alone bubble level for you to use. If you simply throw it back into your eyepiece case after you use it, you will never lose it. For me, it would be more benficial to include the bubble level into the fork base instead of the tripod, since you don't want to remove the base to check whether you are indeed level once you have everything set up. Simply pull out the included bubble level, set on the center of the fork base, adjust the tripod, and your done. It take maybe all of 3-5 minutes to get it level. Including it into the fork base would be nice, but not a big deal.
- OTA HARD TO ATTACH TO FORK: Ok, I can relate to this. You need to be careful while doing this and it can be a little cumbersome doing this for the first time because there isn't a real good indication that you have tightened the dovetail appropriately. After you do this a few times, however, you start to be able to feel whether or not you have slipped the dovetail into the mount correctly. It just takes some practice. But I agree that the first few times you do this, you need to be careful. I recommend attaching the OTA to the fork on the ground (grass/carpet) and then attaching the OTA/FORK assembly to the tripod until you get the hang of it. You also need to realize that you want to push the OTA as far forward as possible so that you don't bang the diagonal onto the fork base when slewing to objects directly overhead. This one I learned from expereince. I was viewing something at about 30 degrees to the horizon and then slewed to something straight overhead. About halfway there I realize the diagonal was going to hit and interrupted it by pushing (frantically) one of the arrow keys. I then adjusted the position of the OTA, realigned, and then had no more problems.
- COMPUTER ERROR MESSAGES: I have not experienced this in the three weeks I have been using the scope. The only error message I ever received was a "alignment failure" message, due to my mistake in daylight saving time described above.
- AC ADAPTER FALLS OUT EASILY: The adapter on my telescope plugs in firmly and it does not appear to be loose at all. In the three weeks I have used the telescope, it has never pulled out or become loose at all.
- ASTROPHOTOGRAPHY CAN'T BE DONE: I have not tried, so I cannot speak from expereince. In general, alt-az mounts are not really designed for long-exposure imaging due to field rotation. With the gear slop issue mentioned above, I bet it would even be difficult if you were to get a wedge and polar align. I don't think they even sell a wedge for this telescope any more for this very reason. Having said that, I have seen some AWESOME images from people who have done the Hyperstar conversion, which converts this f/10 SCT scope to f/2. This 5x reduction in focal length translates into a 25x reduction in required exposure time to image an object. This greatly elimiates the problems of field rotation and therefore let's you get some decent shots of nebula/galaxies even on an alt-az mount. Planetary imaging should be easier, since the objects are bright and only require short exposure times even at f/10. A webcam set-up and image stacking should work well. Again, I am not speaking from experiece, but from descriptions and images others have posted online using the Nexstar 8SE.
Overall, the Nexstar 8SE is an EXCELLENT telescope with great optics that I highly recommend. There are a few things you end up learning by experience, but overall it is pretty intuitive to set-up and use. None of the problems you hear about were deal killers for me. In fact some of the issues (noise), I don't even feel are issues at all. At the current price point of $1079, it is a no-brainer for the 8" aperture, go-to feature, and portability. Buy it and don't think twice.
*** UPDATE ***
Just a brief update - I have done some low tech astrophotography by taking some afocal shots with my 7MP Digital Elph camera. Yeah, not a DSLR, but this small camera can still take some great shots. I have attached the pictures. These are all SINGLE FRAME (no stacking) and NO post-processing. Just straight off the memory card. For my first attempts using a homemade adapter to couple the camera to an eyepiece, I think they are pretty good. So, YES... you can do astrophotography with the 8SE on the alt-az mount.
17 of 17 people found the following review helpful
5.0 out of 5 stars Great product; be forewarned, however, additional costs,
This review is from: Celestron NexStar 8 SE Telescope (Electronics)Selected this telescope after reviewing many online forums where experts suggested it best matched my requirements of:
Ease of use: Includes Nexstar GoTo mount
Aperture: 8" gives you good views of planets and many deep-space objects
The telescope is good construction quality. The visuals and magnification are great. I can see planets with great detail, and many deep space objects even from downtown Boston including the Orion Nebula and the Crab Nebula. From dark sky sites I can see dozens of galaxies.
The GoTo amount works effectively; however, be forewarned that it is very sensitive to power supply so either buy the Celestron Power Tank, or use high-end Energizer of Duracell batteries (e.g. Energizer Max).
The telescope is not great for astrophotography due to the Alt-Az mount; however, it's shortcomings can be rectified by purchasing an equatorial wedge for ~$200 in the used product market on eBay.
NOTE: While the scope is great, there are several other products which I would consider mandatory for effectively using the scope. These additional items add up quickly.
(1) Dewshield/Lens shade: blocks out stray light from adjacent light sources, prevents dewing in humid environments, and protects the lenses should anything (branch etc.) fall onto the scope. Celestron: ~$30 (A MUST)
(2) Celestron anti-vibration pads: reduce the impact of vibrations from the ground or wind, keeping the image stable in the scope. Keep in mind, when you are magnifying something 1M miles away 100 times, a small vibration can shift your field of view several tens of thousand miles! Celestron: ~$45 (A MUST)
(3) Celestron 7ah Power Tank: The telescope EATS batteries and does not work without a good set of brand new, high-end batteries. You will pay this investment off in 5 uses. Celestron: $65 (HIGHLY RECOMMENDED)
(4) Focal reducer: If you want to view dim deep space objects, you will need a focal reducer. This reduces the magnification of the scope, but makes fuzzy, faint images brighter and sharper. Third-party: $30-50 (RECOMMENDED IF YOU WANT TO VIEW DSOs)
I do NOT recommend the Celestron Lens Kit (~$130). The lenses are low quality, and if you have invested $1500 already, why not get the most of your rig. For the price, I recommend two lenses instead from any third-party: a 35MM plossl lens and a 2x Barlowe.
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Celestron NexStar 8 SE Telescope by Celestron