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Sigma 10-20mm f/4-5.6 EX DC HSM Lens for Sigma Digital SLR Cameras
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- 10-20mm focal length
- 15-30mm equivalent focal length on APS-C cameras, 20-40mm equivalent focal length on Four Thirds / Micro Four Thirds cameras, 16-32mm equivalent focal length on Canon APS-C cameras
- F4-5.6 maximum aperture; F22-32 minimum
- Ring-type ultrasonic-type AF motor with full-time manual focusing
- 77mm filters
- 0.24m/9.45" minimum focus
- Available in Canon EF, Four Thirds, Pentax KAF, Sony Alpha, Sigma SA, Nikon F (DX) mounts
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From the Manufacturer
10-20 mm F4-5.6 EX DC (HSM)*
It’s important to have a high quality ultra-wide angle zoom in a lens kit. Sigma's 10-20mm F4-5.6 EX DC ultra-wide zoom lens for digital SLR cameras is ideal for landscape photography, building interiors, group and party pictures and so much more. Great for working with close foreground subjects as this lens features a minimum focusing distance of 9.4-inch at all focal lengths ensuring great creative potential. The wide angle view of up to 102º also offers greater freedom of expression.
Dimensions (Diameter x Length): 83.5 x 81 millimeter / 3.3 x 3.2 inches
Weight: 465 grams / 16.4 ounce
Since 1961, and with the recent introduction of Sigma Global Vision, we have worked toward one single, simple goal: To hold ourselves to the highest standard of design & manufacturing of imaging products. Photography is all we do. And it’s all we’ve done. So you can rest assured that it’s something we know extensively and care deeply about. You have a vision. We’ve made it our mission.
- Ultra wide angle with view of up to 102 degrees
- Internal focusing system technology
- *HSM is not available for Sony and Pentax
- Carrying case, hood, front & rear caps
|Aperture Control Design||Aperture controlled by camera|
|Compatible Mountings||Sigma SA Bayonet|
|Focus Type||Ring-type ultrasonic|
|Included Components||Lens Hood, Front & Rear Lens Caps,1 Year|
|Item Dimensions||3.31 x 3.31 x 3.19 inches|
|Item Display Weight||0.47 Kilograms|
|Item Weight||1.04 pounds|
|Lens Type||Zoom lens|
|Macro Focus Range||0.24 m|
|Material Type||Metal mount|
|Maximum Aperture Range||F4.0 - F5.6|
|Maximum Focal Length||20 mm|
|Maximum Format Size||APS-C / DX|
|Minimum Focal Length||10 mm|
|Number of Diaphragm Blades||6|
|Number of Elements||14|
|Number of Groups||10|
|Photo Filter Thread Size||77 mm|
|Real Angle Of View||102.4 Degrees|
|Shipping Weight||1.72 pounds|
|Style Name||Sigma SLR Camera|
10-20mm F4-5.6 EX DC HSM lens allows enjoyment of super wide-angle photography and it is a very powerful tool for indoor shooting and landscape photography Wide angle of view (102.4° at 10mm and 63.8° at 20mm) offers the photographer greater freedom of expression. These are special DC Series Lenses designed so that the image circle matches the smaller size of the image sensor of most digital SLR cameras. Their specialized design gives these lenses the ideal properties for digital cameras, the compact and lightweight construction is an added bonus! Three SLD glass elements are employed for effective compensation of color aberration, which is a common problem with super-wide angle lenses. One piece of glass mold and two hybrid aspherical lenses, offer excellent correction for distortion, as well as all types of aberration. This lens is equipped with an inner focusing system, and the models which are equipped with HSM system provide quiet, high speed autofocus shooting and also offer full time manual focusing. It has a minimum focusing distance of 24cm (9.4") at all focal lengths. The non-rotating lens barrel perfectly suits the petal shaped lens hood. A circular polarizing filter can also be used conveniently. Please note: Vignetting will occur if the lens is used with digital cameras with image sensors larger than APS-C size or 35mm SLR cameras.
From the Manufacturer
- The 10 to 20 millimeters f4 to 5.6 EX DC HSM lens allows enjoyment of super wide-angle photography and it is a very powerful tool for indoor shooting and landscape photography with APS-C size image sensors of digital SLR cameras.
- It covers a superwide angle of view 102.4 to 63.8 degrees
- Three pieces of Special Low Dispersion (SLD) elements and three aspherical lens elements produce top quality optical performance.
- Inner focusing system ensures the length of the lens remains unchanged whilst controlling aberrations.
- Equipped with HSM (Hyper Sonic Motor) system
- Minimum focusing distance of 24 centimeters (9.4 inches) at all focal lengths
- Relatively compact, lightweight for an ultra wide-angle zoom lens
Wide angle of view (102.4 degrees at 10 millimeters and 63.8 degrees at 20 millimeters) offers the photographer greater freedom of expression.
Three SLD glass elements are employed for effective compensation of color aberration, which is a common problem with super-wide angle lenses. One piece of glass mold and two hybrid aspherical lenses, offer excellent correction for distortion, as well as all types of aberration.
This lens is equipped with an inner focusing system, and the models which are equipped with HSM system provide quiet, high speed autofocus shooting and also offer full time manual focusing. It has a minimum focusing distance of 24 centimeters (9.4 inches) at all focal lengths. The non-rotating lens barrel perfectly suits the petal shaped lens hood. A circular polarizing filter can also be used conveniently.
Top Customer Reviews
I had planned to buy the 12-24mm Nikon next Spring when my budget would allow the expenditure. I have had success with Nikon optics in the past - starting with my first Nikon FM back in the seventies. The Sigma's good construction, nice finish, smooth+fast+quiet focusing and 10mm focal length convinced me to try my first non-Nikon lens in 30 years. A big factor: The Sigma lens is less than half the price of the Nikon lens here is Canada. It fit my budget, so I took the plunge.
The Sigma fits into my "sharp enough" category. In real world shooting, its sharpness is on par with my 18-200mm Nikon. Both lens are less sharp than my $100 50mm 1.8 when "test" images are blown up to 16"x20" size. I never notice any lack of sharpness in "real" pictures. I care more about color saturation, contrast and color balance anyway. In this area, the Sigma does well. Saturation and contrast are equal to both my other Nikon lens - particularly at f8 and smaller aperatures. Wide open, I find some weakening in contrast. The Sigma has a warmer color termperature than my other lens. One click toward blue in Photoshop would fix this minor variance in color. But I use my 10-20mm almost exclusively for landscapes. The warmer color is generally a good thing.
I have noticed some vignetting @ 10mm f4. Zooming to 12mm or stopping down to f5.6 elminates any artifacts in pictures I have taken thus far. I have found it's more important to avoid "thick framed" filters - and stacking filters is a no no with this lens. They cause more darkening than a wide open f-stop. BTW: I added a 72 to 77mm step-up ring to my 18-200m VR Nikon to allow me to share filters between my zoom lens.
I do miss having a manual/autofocus switch on the Sigma lens. I have accidently nudged the manual focus ring a couple of times. With that said, the incredible depth of field of this lens (or any lens at this focal length) means small focusing errors can be tolerated :)
I recommend this lens - even to people like me, who never had a non-nikon lens before.
When I received my lens I later realized that I did not receive the extended three year warranty card that comes with the USA versions of the lens. Instead of just sending me the extended warranty card Amazon shipped me a whole new lens. Now while I was reading reviews prior to ordering this lens I had seen many reviews where the reviewer either loved this lens or they hated it. After a while I could see why...
Some of the lenses that are being shipped are sharp all the way around while some are not sharp at all. Many claimed it was sharper at F:8 than F:4 while others said theirs was never sharp at all. Some complained about distortion and or dull or over saturated colors. I finally found a reviewer who had the opportunity to try 3-4 different lenses. They found that there seemed to be a lack of quality control all around when it came to this specific lens. Having a few days of both lenses I decided to compare them out for myself. I am glad I did.
I put my camera in the front yard on a tripod and shot numerous sets of three for each lens at 10mm, 14mm, and 20mm. The results were surprising. The original lens I had been sent first was a clear winner. The trees and anything else around the picture were sharp, The replacement lens was anything but sharp. The colors on lens two were more vibrant than lens one but one can fix that with software where a blurred image is not really fixable.
I shot numerous sets with both lenses and a few different F settings and the results remained the same. The replacement lens was the one being returned. Lucky for me the Sigma extended warranty cards have nothing on them, you enter the serial numbers yourself so I kept the card and returned the replacement lens.
I have included two photos to the gallery for this lens so you can see what I found. In the end my first lens would have received a 5 star rating because they really are excellent lenses if you can get a good copy. The replacement copy would have received a 1 star rating. Luckily I had the chance to compare the two copies side by side or I may have never known just how bad lens number two really was.
If your lens has problems like lens number two you have a poor copy of the lens, return it. Sadly from all of the reviews I have read it seems that maybe 20% of the lenses are not good copies. Many just think poor sharpness is just a general lens limitation when chances are it is just a poor copy they received.
1. Get the lens out and shoot some shots, If it is not sharp around the edges return it for another copy.
2. If you do not get your extended warranty card you may have gotten a gray market lens. Return it.
Upon talking to a Sigma rep I was told they have no way to verify whether the lens is USA or Gray market (international) by the serial number, if you do not have the extended warranty card you will not get the warranty extension so buyer beware. The card is a card stock type black and red folded warranty card that specifically states that it is the extended warranty card. Don't let any dealer tell you that it has the extended warranty without it being in your hands. Sigma currently has no registration on their website. The rep told me to keep the card in a safe place and then in the event that I need service I will send it and a copy of the original sales receipt in with the lens for service.
All that being said I can tell you that this is a wonderful lens if you need a super wide angle lens and you get a good copy. They are not the fastest lenses around but for the money you cannot beat it.
Take a look at the pictures I included for the lens and hopefully they will help you determine if you were lucky on the Sigma draw and give you an idea of what you need to check for.
Most Recent Customer Reviews
I used it for my Canon 60D. It was a go to of mine for landscape photos when traveling.Read more