if you wanna use filter it's at the back as 16-35/17-40... use gelatin filter.perror said:A friend of mine bought the Sigma 12-24 for use with his D100. The front element is indeed vulnerable as it exposed...They do provide some sort of barrel that attaches to the lens which permits you to use filters and all that..but it causes light fall off at certain focal lengths. One way you can address this is via the use of a spot ND.
its a build in hood, and because the lens shape is to big there's no way u can attach the hood, but it comes with the adapter to attach the filter in the front.kerpalz said:coz i`m kinda used to use a 12-24 nikkor len on my s2pro.... what do u mean by that the len's front element dangerous thingy? u mean cant attacj len hood to it?