How to prevent clipping?

[Michelle Davies]

i just got a sigma 30mm and have been noticing lots of clipping with this lens. can someone please tell me how to prevent it? thanks!

[JaertX]

shouldn't really be a function of the lens?

http://en.wikipedia.org/wiki/Clipper

[JaertX]

but really...in general, just learn to watch your histogram. no reason a lens should change things.

[CyberDyneSystems]

Can you elaborate on what you mean by clipping? Jason has the normal use above, but I am thinking maybe you are talking about Vignette since you mention the lens?

Maybe?

[Michelle Davies]

when i view the histogram i definitely have the middle covered but the right and the left both have flat lines.

[Radtech1]

Please do a screenshot of the histogram and post it, along with the image that the histogram represents. That would help make sense of what you are asking. See, when you say "flat lines" is the flat horizontal or vertical? The word "flat", to me, means horizontal, but horizontal lines are not clipping.

Also, what happens with a different subject?

Rad

[Tee Why]

Basically the scene is too dynamic for the lens to capture the range of lighting available if there are over and under exposed areas of the shot.

Dslr's don't have the dynamic range that films do. If possible using polarizer or an ND filter or HDR may help. Shooting in RAW is suppose to give about an extra stop of range as well that you can recover while processing.

[gooble]

Clipped values in a histogram typically have a positive slope that runs into the right border of the histogram.