Sigma 77mm EX DG, Digitally Optimized, Circular Polarizer Wide Angle Multi-Coated Glass Filter.

2014-06-16T21:00:00

Use this product for nature photo's, primarily waterfalls does a great job of reducing glare and making colors brighter

Jim

2014-02-18T19:00:00

The polarizer did everything it is supposed to do. This is my second one and am very happy with the solid construction and ease of use. It's on my wide-angle lens full-time. No need to buy the overpriced brands when this one does well for me. Certainly will buy more Sigma stuff!

husker415

2013-09-02T21:00:00

I'm using this polarizer on a Canon 10-22mm zoom lens. I usually buy a more expensive brand, but this filter is doing a great job for me. Strong polarizer effect makes outdoor shots really come alive. It's a thin filter, so no interference even at the widest setting. Probably will buy Sigma filters again.

David L.

2013-06-03T21:00:00

I bought this specifically for use with my new Pentax mount Sigma 10 20 mm f4 - 5.6 zoom. While many caution against polarizing filters with ultra wide lenses, I've found them useful in certain situations. This filter allows me to use the Sigma petal lens hood, which another filter I have wouldn't. Results are excellent! Now, if Sigma would put a portal in the hood for easy adjustment of the filter.....

George H.

2012-06-17T21:00:00

I use this filter on a sigma 17 to 50 f2.8, I like the idea of using matched filters from sigma. I have had great experience with this filter, color enhancment is excellent, very easy to rotate, threds perfect on sigma lens. Especially for the price, this a a high quality optic, clear and no distortion, just bought the 82mm for my ultra wide as well.

TIMOTHY H.

2012-03-13T21:00:00

I share the cleaning problems reported by another reviewer. I cannot clean this filter satifactorily. I've tried pens, microfiber cloth, lens paper, solutions, etc. They only move the smears around. Other than that, the filter operates well, but I wonder how much detail I'm losing due to the dirty surface.

RWB

2012-03-04T19:00:00

Great filter, works well.

gary g.

2012-02-12T19:00:00

I own plenty of Sigma products but I am not happy with this item. No matter what I do, I cannot get the filter clean.. As a result it has become as a expensive, worthless filter.

JOSEPH J.

2012-02-02T19:00:00

The filter has a solid build and works exactly as you'd expect. Quashes glare perfectly and lets images shine through. I use it with my Canon 40D on a 17-40L and a Sigma 10-20 lens. I've included two images for a much better comparison of how striking it works, but of course the degree of effect has a lot to do with your angle to the sun. Approximately 45 - 90 degrees yields the strongest effect. The images I shot were close to sunset at the Grand Canyon. I kept the f-stop and ISO the same, and let the camera choose the shutter speed (the filter gives approximately 2 stops of light reduction, depending on usage). Just beware that the threading tends to not hold the filter on the lends as securely as some other filters I've used.

VANESSA K.

2011-01-12T19:00:00

Excellent product for a budget. It gets the job done at a spectacular price.

robertjc

2010-02-20T19:00:00

I am a newbie so I dont have a lot to compare it to. I use this on a Pentax 12-24 , its well built, gives nice color to skies ect, and does not vignette even at the widest part of the lens and its a bit less expensive than some of the other namebrands. I like it

dehanson1

2010-01-20T19:00:00

I use this on my Sigma 10-20mm lense. Figured if I have faith in Sigma lense quality, then why not use a Sigma filter. The ring is thin but rotates smoothly & is ribbed on the outside for ease of rotating. YES!-It has front threads for a lense cap. Buy it--you can't get a better one. I have read specs.on this filter that states the Sigma Wide Filters do not have front threads. I took the chance on one review that said it did.

TOM A.

2010-01-10T19:00:00

I bought this filter to use primarily on my 10-24 utlrawide. I have used Sigma DG filters exclusively since I went to digital photograpy and never been disappointed. A couple of weeks ago my wife and I took a day trip to the beach for some winter photography of migrating birds. I noticed my skies where dramatically bluer with the Polarizer than my wife's with just a UV.

LOUIS W.

2009-01-21T19:00:00

Clear optics, non-existent to the lens, and that's what you want in a lens protector. Insurance for your lens is what these are. Expensive for what it does, but worth it to never have to see your costly "L" lens scratched.

GEORGE P.

2008-03-04T19:00:00

Unlike most slim/wide-angle filters, this Sigma includes a front thread, which means you don't need a special push-on lens cap; the one included with your lens will work just fine. That's a major boost in convenience. It also means you can stack additional filters, though beware of vignetting.

New U.

2008-01-21T19:00:00

A very thin polarizer that works well and does not vignette. The only negative is that it came with a big finger print in the middle of the outer glass.

STEVE R.

2006-09-30T21:00:00

I bought this to go with my Sigma 10-20 UWA and Canon 17-40L. It does a fabulous job on both. Its thin-ring design means no vignetting on ultra-wide angle lenses. It stays on my 10-20 (until I put my 17-40L on!).

PhotoTone