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Customers most agreed on the following attributes:
from North Jersey on 1/13/2011
Comments about Sigma Sigma 77mm EX DG, Digitally Optimised, Circular Polarizer Wide Angle Multi-Coated Glass Filter.:
Excellent product for a budget. It gets the job done at a spectacular price.
from Gulfport, Mississippi on 2/21/2010
Comments about Sigma Sigma 77mm EX DG, Digitally Optimised, Circular Polarizer Wide Angle Multi-Coated Glass Filter.:
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
from Akron,Ohio on 1/21/2010
Comments about Sigma Sigma 77mm EX DG, Digitally Optimised, Circular Polarizer Wide Angle Multi-Coated Glass Filter.:
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.
[1 of 1 customers found this review helpful]
from Brenham, TX on 1/11/2010
Comments about Sigma Sigma 77mm EX DG, Digitally Optimised, Circular Polarizer Wide Angle Multi-Coated Glass Filter.:
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.
from Cypress, TExas on 1/22/2009
Comments about Sigma Sigma 77mm EX DG, Digitally Optimised, Circular Polarizer Wide Angle Multi-Coated Glass Filter.:
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.
[4 of 4 customers found this review helpful]
from Decatur, GA on 3/5/2008
Comments about Sigma Sigma 77mm EX DG, Digitally Optimised, Circular Polarizer Wide Angle Multi-Coated Glass Filter.:
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.
[2 of 2 customers found this review helpful]
from Montana on 1/22/2008
Comments about Sigma Sigma 77mm EX DG, Digitally Optimised, Circular Polarizer Wide Angle Multi-Coated Glass Filter.:
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.
[6 of 6 customers found this review helpful]
from Northern Colorado on 10/1/2006
Comments about Sigma Sigma 77mm EX DG, Digitally Optimised, Circular Polarizer Wide Angle Multi-Coated Glass Filter.:
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!).