Name: Sigma 10-20mm f/4-5.6 EX DC Autofocus Zoom Lens for Pentax DSLR Cameras - U.S.A. Warranty
Brand: Sigma
SKU: SG1020PXAF
Price: 479.00 USD
Availability: Discontinued
Rating: 4.5 (95 reviews)

Sigma 10-20mm f/4-5.6 EX DC Autofocus Zoom Lens for Pentax DSLR Cameras - U.S.A. Warranty

Sigma 10-20mm

Sigma

Sigma 10mm-20mm f/4-5.6 EX DC AF Zoom Lens for Pentax, USA #201109

Adorama

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Sigma SLR Lenses

Sigma 10-20mm 

Top Rated Gear: Sigma 10-20mm f/4-5.6 EX DC Autofocus Zoom Lens for Pentax DSLR Cameras - U.S.A. Warranty

I bought this lens for landscape photography so not being fast is absolutely not an issue--nobody shoots landscape open wide. Tested it last weekend and I'm totally impressed with the wide view and definitely no complaints on performance. This is my second Sigma lens (the other is the 50mm 2.8 prime). I did a lot of research before settling on this.

Worth the money

Not a fast lens but who shoots f2.8 for landscapes? Perfect for me.

Perfect for landscapes

I noticed I reviewed this lens back in 2007, but since have moved entirely to FX and had given this lens to my daughter. This week, I decided to buy a new D7200 as a fun lightweight vacation camera and knew I needed to re-purchase this Sigma 10-20 f/4-5.6 lens because my daughter won't give mine back. Coupled with an older Tamron 17-50 f/2.8, these will be the only DX lenses I'll need to go with my huge selection of FX glass. There's a reason there is such a huge cult following for this Sigma 10-20 f/4-5.6 wide angle and is the reason I am re-buying it. It is just a superb example of this kind of lens. It's very sharp and fairly distortion free. It's 10mm wide end gives me that huge 100 degree field of view I love so much over the years. When used correctly, you can really get in tight with foreground elements while framing the background landscape elements, producing lovely images. The glass is sharp enough to take advantage of today's 24 mp camera sensors providing you do your part. All in all, I highly recommend this lens and the fact that it's so inexpensive is an added bonus.

Superb DX Wide Angle Zoom

Over the past few months, I have encountered several situations where I needed a wider angle lens than my basic 18-55 lens. In looking at the available lenses, including reviews, this lens looked like a very good lens, in terms of "bang for the buck". I've had it for a couple of weeks now, and have used it exclusively on several walking trips. I've not been disappointed. You have to be careful with image distortion at the very wide end (typical of very wide angles). So far, I haven't experienced any serious vignetting, but I tend not to shoot with the lens wide open most of the time. It does create some interesting angle distortion, but again this is typical of the wide angle. This lens isn't quite as fast as the newer Sigma lens, but so far, I haven't found that to be an issue. The lens appears to be well made, and works nicely with my Pentax camera, and at less than half the price of the comparable Pentax 12-24 lens. The autofocus speed has not been a problem, since most objects I shoot with this lens aren't moving very fast (or at all!)

Nice extra wide angle lens for the money

I use this when I have a limited amount of room to work with. If you aren't familiar with ultra-wide lens, you need to know you can photograph an entire firetruck from about 1 foot away from the front bumper. Very useful when photographing cars, boats, tractor, and the inside of homes if you do real estate. This lens is very sharp if used properly. If outdoors, use the hood. There is no image stabilization on this lens, so you need to use your rule of thumb on shutter speeds or a tripod.

Great wide angle

It's a great lens as it takes filters. on the A-77 it's still fairly wide, I returned it and got  the 8-16mm as it is noticeably wider, but no filter. On the A-77 @ 1.82+/- crop.

Nice lens

I bought this to get the super-wide angle landscape shots I've always dreamed of getting but not had the equipment for.  I am very happy with this lens. I like the colors, speed and sharpness I have been able to get so far.  Right now I only have a UV filter on it and need to get a decent polarizer to really test out sunny high elevation skies.

Very nice super wide angle zoom lens

Use the len for travel
Take very good pictures Color /tone /sharpness. At 20mm comparable / AS GOOD as my Nikon lens
Only drawback: at 10mm little distortion at edge of some picture which is normal for wide angle lens.
Overall a very good product with reasonable / affordable price

A little distortion at the edge

I love this lens. Crisp, sharp photos; professional lens case. I love the perspective you get shooting wide. Took it with me to Asia, great pics!

Love it

Recently rented this lens and it was a pleasure to use, got some great wide angle shots!

Who needs a fisheye!

Got this lens to use with Pentax K01.  The lens looks and feels expensive.  At f4, the sharpness is not usable (You won't carry a DSLR for that kind of image).  I think the sharpness is best at between f5.6 and f8.  Even at that range, I still find it too soft for landscape photo.  The distortion is not much of a problem at 10mm.

There's a lot of people saying that they received defective copies of this lens.  I'm not sure if mine is.  I'm used to Micro43 with 20mm f1.7 pancake lens.   This Sigma lens is just as sharp as the 20mm at wide open at the very best.

Beware of defective copies

This lens will help create amazingly colorful landscape shots. The 10mm focal length makes for  a surprisingly wide angle that helps you capture the way you see it. A treasure of a lens for the price. Only thing I would improve is faster F-stop but I would expect to pay more for it. Besides, my trusty tripod can make up for low light landscapes needs.

Sigma 10-20mm review

This lens is the most enjoyable lens to shoot with that I have ever used.  It makes you work hard to get the best composition, putting the photographer back into photography.  Sure, you can use it on a wide vista and 'get it all in there', but the photos are boring.  They document a wide field, but unless you are really into this wide open, often empty look, you will not be impressed.  Once you get right up next to your prey, THAT'S when this lens shines.  There is a little distortion to deal with, but nothing deal-breaking.  The photos you get when you take the time to compose and include are stunning.  Crisp and clear and loaded with items of interest and real compositional appeal.  This lens is an excellent value, especially used.

It all worked out

Nice but not perfect

Works perfectly with D7000, fast focus, sharp wide open at center and very sharp at 8.0. Excellent build quality.

Great product for reasonable price

Sports it´s my job area.. I love that fast lens...

Great Lens

With over 90% of all buyers researching homes BEFORE an on site visit, web based photos a key to selling homes in today's marketplace.
This lense gives me the power to present the best story of my clients's home!

Necessary tool for every Realtor

I was searching like 1 month for decent wide angle lens.I was struggling between tokina 11-16mm and sigma 10-20mm but i end up with sigma.
I'm not a professional photographer so i didn't want to spend a lot of money for my lens and this i a best choice for me.To fit my budget and to be happy with purchase at same time.
Lens is very good quality taking a very nice photos .Go with sigma and don't worry.

im happy with my purchase

Wanted to move into shooting wide angle, and this was a budget friendly way to move into this format.  Love it for shooting landscapes and indoors.

Great Product, Love It!

I use this lens for a few months now and i just love it!

I love it!

I was shooting at sun rise and 20% of my images have green flare. I can't say another lens would do better, but I won't buy another Sigma lens. Please
find some place to try this lens before you buy.

Look for the green flare

Use of the built-in flash causes shadow, but I knew this before buying. Gives me more good/great images in wide angle range. Quality is good to best; works
very well on my Nikon D40.

Good value for the money

This lens is great with tolerable distortion. Doesn't work well with on-board camera flash due to its size. I was amazed to receive the lens in Langley BC Canada the day after ordering it.

I wish I had purchased this lens sooner

Have only used it once on a trip to the mountains, but so far the lens seems to take sharp photos, even to the edges.  The lens cap is a problem, though.  The slightest touch will cause it to fall off.

so far I am happy

This lens was used on my Nikon D300 up until I upgraded to the Nikon D800.  It's a great and affordable lens for aspiring photographers.

Excellent Lens!

Warning to all that may purchase this lens. Although the lens will autofocus,there is no way to lock-in that feature. The gallery photo,the Sigma website description and the instruction booklet that accompanies the lens all show an Autofocus/Manual switch on the base of the lens. It just does not exist.

Not As Described -No AF/M switch.

I use it mainly for abstract things or to cover large areas to view.  Decent over all.

Worth the money for a 4-5.6

I purchased the Sigma due to money constraints to place on my Nikon D7000. The lens fits the camera well, focuses without problems and is relatively lightweight. The 77mm cap size is really large, but then it is a wide angle. I have used Sigmas in the past with my Canon SLR/DSLRs and have nothing really negative to say about it.

Great little lens

We have Nikon digital cameras and just love it.  Very easy to use, esy to change lenses.  Can't say enough good things about it.

Love It

This lens merits 5 stars when compared to alternatives. A well constructed , smooth operating performer . No u/wide is optically perfect but c/a is a non-issue , distortion average, and sharpness is generally good.Half the cost of the Nikon , and better build than Nikon and Tamron. Can't beat it.

Sigma 10-20mm f/4-5.6 EX DC Autofocus Zoom Lens for Pentax DSLR Cameras - U.S.A. Warranty

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