Question by m1364: How can I adjust my camera aperture to my lenses minimum?
I have this Canon rebel xt (350d) with the 35-50mm lenses which is suppose to give me 1:3.5-5.0. but no matter how hard I try I can’t set to an aperture less than 4.5. I usually work in the AV mode which is aperture dependent. why is that?
Answer by Dr. Sam
If you are at 35 mm, the maximum aperture (which is called so because it is the largest diameter, even though it is the smallest number) is f/3.5. As you zoom out a bit, that will change in a progression until you reach 50 mm, where the maximum will be f/5.0. I don’t know if this is a linear progression or not in your lens, but if you are not at 35 mm, you will not be able to get all the way to f/3.5.
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