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ExpoDisc Professional White Balance Filter - 77mm lens thread - Get Beautiful Color in Your Photos and Video, Easy-to-Use, No Software Required, Save Time Fixing Color
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- SAVE TIME FIXING COLOR - set a custom white balance to get beautiful color straight from your camera - stop wasting time fixing your color later with software
- EASY TO USE - the ExpoDisc is easier to use than white balance cards, gray cards, and photographic calibration targets - simply attach the ExpoDisc to your lens and set your camera’s custom white balance
- QUICKLY SET WHITE BALANCE - just attach the ExpoDisc to your camera’s lens and follow a few simple steps to set the white balance - in most cameras you can set a custom white balance in just 15 - 20 seconds
- METER FOR 18% EXPOSURE - ExpoDiscs are individually calibrated to transmit 18% light - this produces a gray frame reference that can be used instead of a photographic gray card to establish an 18% exposure
- MADE IN USA - we care about our products - we assemble, calibrate, and certify every ExpoDisc in California - 1 year warranty
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From the manufacturer
ExpoDisc 2.0 Features:
Save Time - White Balance In 15 Seconds or Less
The ExpoDisc consistently produces excellent color in natural, artificial, studio, and mixed light environments.
To set a custom white balance, place the ExpoDisc in front of the lens and follow your camera's custom white balance procedure to capture an incident light reading through it. Aim the camera towards the dominant light source (just like an incident light meter) to set an accurate white balance.
For most cameras, this procedure takes less than 15 seconds.
ExpoDisc 2.0 is protected by US Patent No. 7,719,606 B2.
No Photoshop Required - Get Great Color In-Camera
Eliminate the need for RAW or JPEG post-capture color adjustments by setting a custom white balance in-camera with an ExpoDisc.
No special software, and no post-processing required.
Adjusting color temperature and tint in post production can be a time consuming and inconsistent method of white balance correction that can be avoided by setting an in-camera white balance with the ExpoDisc.
If shooting RAW, simply set your in-camera white balance and download your images 'as shot' to avoid time spent correcting color.
Every ExpoDisc is Calibrated and Certified in the USA
Each ExpoDisc is tested by hand on a transmission spectrophotometer and adjusted for neutrality using custom formulated materials to ensure an 18% total light transmission across the visible spectrum.
Neutrality in a white balance tool is critically important because using a non-neutral tool for white balance can add undesirable color casts to images.
Every ExpoDisc 2.0 includes its own quality control card to certify its neutrality and 18% total light transmission.
Easier to Use than a Gray Card or Calibration Target
The ExpoDisc is far easier to use than any gray card, white card, or calibration target because it fits in your pocket and enables you to quickly and easily set an accurate in-camera custom white balance.
To use the ExpoDisc for white balance or exposure metering, simply place it in front of your lens and meter or capture an incident light reading.
Calibration targets and most gray cards on the other hand must be placed in the scene or carefully held by your subject and then photographed for post production processing and color correction.
Meter 18% Incident Exposure
The ExpoDisc is not just for white balance. The precision calibration and uniformity of the ExpoDisc means that it can also be used to meter for an 18% incident exposure.
To meter for an 18% exposure, stand at the subject's position and aim the camera back toward your intended shooting position. Use the camera's meter as seen through the viewfinder to adjust the aperture, shutter speed, or ISO until a proper exposure is indicated.
It is also possible to make exposure adjustments based upon the position of the histogram spike on an ExpoDisc test shot. Adjust the aperture, shutter speed, or ISO until the spike is centered in the histogram.
How Does the ExpoDisc Work?
Your camera’s internal light meter measures the color temperature of light passing through the ExpoDisc to make an “in-camera” color adjustment. This color adjustment is then applied to all subsequent images taken using the custom white balance from the selected light reading.
Or, if you prefer shooting in RAW file format and batch processing later, simply capture a reference image through the ExpoDisc to use with your image editing software.
Whether shooting in RAW or JPEG, using ExpoDisc to white balance saves valuable time editing photos and video.
Hold A Larger ExpoDisc Over Smaller Lenses
The ExpoDisc 2.0 is available in 77mm and 82mm filter thread sizes. It uses a push button mount design to attach quickly and securely to equivalent sized 77mm and 82mm lens filter threads.
If you have lenses smaller than 77mm you can simply hold a larger ExpoDisc flat against the end of the smaller lens to set your white balance or meter for exposure.
The ExpoDisc can be used with any digital camera with a custom white balance capability, including all digital SLRs. The ExpoDisc works with all major camera brands, including: Canon, Nikon, Sony, Fuji, Leica, Olympus, Panasonic/Lumix, Pentax, Ricoh.
White Balance Your Studio Strobes
Maintaining a consistent color balance with your studio flash can be difficult if you’re shooting with poorly matched or aging studio flash equipment.
Even the best studio flash emits light at different color temperatures as its power output is increased or decreased. The age and condition of the flash’s electronics, flash tubes, and light modifiers can also negatively affect its color consistency.
Setting an accurate custom white balance with an ExpoDisc can help you to maintain a consistent color balance that ultimately saves valuable time correcting color later in post processing.
|ExpoDisc 2.0 - 77mm||ExpoDisc 2.0 - 82mm||Other White Balance Filters||Other White Balance & Color Balance Targets|
|Certified neutral - individually calibrated||✓||✓||No||No|
|Quickly set white balance||10-15 seconds||10-15 seconds||10-15 seconds||60+ seconds|
|Quickly use on-camera||✓||✓||✓||No|
|JPEG (set in-camera white balance)||✓||✓||Inconsistent Results||Larger Targets Only|
|RAW (post production white balance requires uniform gray frame)||✓||✓||Inconsistent Results||✓|
|Set 18% exposure reference||✓||✓||No||Some Targets|
|Create sensor dust map||✓||✓||No||No|
|Customize white balance with warming filters||✓||✓||No||Some Targets|
Set white balance, meter for exposure and dust map your sensor with the only calibrated and certified 18% transmission incident light metering filter.
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Top international reviews
and here's why...
I read reviews and watched video clips before making my decision and for me, the first time I used it, it was worth every penny.
Now, I haven't used it on every outing. Mostly because after going without it for so long, I sometimes forget.. oops.
But, the reason for getting one is I was never satisfied with my white balance. Shoot RAW they say, you can change it in post, it doesn't matter what it's set to. Ok, so this is true, yes, you can shoot RAW. Yes, you can edit it in post. You can also do a lot of things in post. Does that mean you should?
Whilst I like to get things right in camera, white balance is indeed one of those things that you can "fix" later. Besides, white balance is just another creative tool... In the grand scheme of things, there isn't really a right or wrong setting, is there?!
So why get it? Well, sometimes I would spend too long adjusting it in post, despite using a calibrated monitor, I never really could get it quite right. Something always just seemed "off". So for me, this gave me a great base to start with. I've yet to be disappointed with the result it's given me so I have the choice to either leave it, or change it for creative purposes, etc. Point being, when I use it, I don't change the WB in post.
Simply put, If you don't mind adjusting WB in post, then don't bother getting it. If you want consistency, then get it.
If you stick you WB in Auto and are never satisfied with the result, then it's definitely worth it. You don't quite realise how "off" auto WB can be.
If you're the type of person who adjusts the WB for every scene (using the cameras presets) you might not notice a huge difference. There will be a difference, but it depends on how fussy you really are. I was from the school of "set it to AUTO WB and let the camera deal with it". Therefore I was surprised to see just how off it can be and how much of a difference it made.
How about compared to a grey card?
Well, it's arguably faster, more portable and will probably last much longer.
Once you get used to it, you can literally set it in seconds.
So good so far, right?
.. a photograph need not be perfectly colour balanced because the photographer may wish a certain effect or atmosphere. Colours are not displayed the same on different viewers eg iphone tv monitor, pc monitor ,galaxy phone etc. So others may not be seeing what you intended.
However, using the Expodisc matches what I see in my brain's eye, camera and monitor perfectly.
It is superior to my AWB Olympus EM10 mark2; here the AWB can often get it right, Expodisk - always.
Using the Expodisc by placing it against the subject pointing facing towards the intended camera position is always spot on. I have used it just by pointing at the subject with a very high success rate.
Which ever way, setting the white balance viewed through expodisc and making it the camera's custom WB takes 15secs.. easy peasy.
Getting the WB right in camera there and then, saves loads of post production work.
I have also take a WB jpeg image thro' Expodisc at the start of a photo shoot and as long as the lighting remains the same you can use this WB grey
image post production in Lightroom/Photoshop, to sycronise through the whole range of photos.
Expodisc can also adjusts/correct camera exposure. In Manual Mode place Expodisc over the lens stand/sit at or near/next to subject position and point towards intended camera position. Adjust manual settings thro' Expodisk until perfect exposure is obtained; adjusting ISO - shutter - aperture to suit, until exposure meter reads 0.
Take off Expodisc, return to camera position, keeping the manual settings unaltered, plus custom WB.. perrrfect picture.
It is easy to use and is becoming second nature to snap an image at the start of a photo session. It is a bit disconcerting to see that the image isn't 18% gray (RGB 50:50:50) when I open it in Lightroom. However, 1 click of the White Balance Tool sets the image to neutral. Synchronizing this test image with the rest of the shots in the session is a doddle.
I can't imagine being without this indispensable piece of kit from now on. It remains to be seen if the judges of my images in competition agree with its accuracy.
Well, as I had both tools at hand, I decided to do a side by side test to see if there was any difference between both of these tools. I set the white balance using one tool (JJC) and then took a picture of my wall (which has various picture frames on it). I then repeated the procedure with the ExpoDisc.
I then took both pictures into my RAW processing software (Capture NX-D, using a colour calibrated monitor). The white mattings on my frames look a little too warm for the ExpoDisc picture. The JJC tool makes the white mattings very nearly bang on (ever so slightly purple tint, but the expo disc also has an ever so slightly green tint). Reading off the presets, the ExpoDisc had set a white balance of 6099K, while the JJC tool set a white balance of 5747K. As the JJC whites appear to be very nearly bang on, the ExpoDisc appears to be too warm by about 350K.
This result certainly surprised me because ExpoDisc is substantially more expensive and has a lot of hype behind it, specially on YouTube. I just expected that it was the gold standard for this sort of thing. Well, yes, it is good, but if you are after white whites, you will need to do post production on your picture to remove those extra 350K of warmth.
These were my findings anyway. I hope this review helps you.
For colour this is very accurate and it can also be used to set your exposure - watch the you tube videos.
overall very quick and accurate to use when you get used to it and very good for getting things right in camera when the lighting is mixed or a little difficult. Yes you can do this in post but this is a better solution for white balance and tint in one hit.
This is true to a certain extent. When I do food photography, having the right calibration saves you looooooot of time and therefore money. Also if you like me, work with stupid clients, that want to check the photos immediately and DO NOT UNDERSTAND that you will "fix" the white balance later, this can help you like nothing else.
I really use it all the time and it worth every penny
You place the disc to the lens by squizzing two "buttons" which are placed on opposite ends. That mechanism feels cheap, not very well designed. Expo disk look at modem canon front caps and check how it's done. Even the old style front lens caps are nice to press than the revised expodisc's attachment system.
Auto white balance was OK before but now this makes it darn near perfect.
It does help with mixed lighting
Essential if you want colour balanced jpegs out of the camera
(you must have a camera option for personal white balance setting)
Got the largest as it covers all my lenses