Due to the ultra wide angle shooting capabilities of lenses such as the 15mm, front filter use simply is not possible. It would damage the front element of the lens and cause heavy vignetting on the images. Gelatine filters are available from the following website: http://www.galvoptics.co.uk.
Where are Sigma lenses made?
All Sigma products, lenses, cameras and flash units are manufactured exclusively by Sigma in Sigma’s own factory in Aizu, Japan. No Sigma Corporation product – lens, camera or flash – is manufactured outside of Japan. This is very unusual these days, as most companies have at least some of their products produced outside of Japan …
Can you send me a printed lens brochure?
Yes, just phone or email sales@sigma-imaging-uk.com and we will post you a printed brochure. Alternatively, click here to download a PDF version.
I have just purchased one of your DC lenses but I am getting a black line around the edge of my pictures. Is the lens faulty?
Sigma’s DC lenses are designed to work on digital SLR cameras with an image sensor which is smaller than 35mm film (known as APS-C size). If you use one of these lenses on a film or full frame digital SLR, you will get a line (called vignetting) around the edge of the picture. Please use …