Is there something wrong with my new camera?
December 29, 2009 10:57 AM Subscribe
On my new canon rebel xsi, in aperture priority mode the camera won't let me open the aperture past 5.0, how do I fix this or is there something wrong with my camera?
I have the canon rebel xsi with the standard kit lens which has an aperture which I believe opens to 3.5. This aperture (3.5) has also been used occasionally when shooting in automatic mode, and when in av mode it will occasionally let me change it to this but not a lot. It will let me narrow the aperture though and increase the number.
I have a basic understanding of how aperture works, but It's not perfect, so sorry if this question didn't make perfect sense. Thanks for your help!
I have the canon rebel xsi with the standard kit lens which has an aperture which I believe opens to 3.5. This aperture (3.5) has also been used occasionally when shooting in automatic mode, and when in av mode it will occasionally let me change it to this but not a lot. It will let me narrow the aperture though and increase the number.
I have a basic understanding of how aperture works, but It's not perfect, so sorry if this question didn't make perfect sense. Thanks for your help!
Best answer: The aperture on the lens you linked depends on where in the zoom range you have it. If you have it at 18mm you'll get f/3.5, if you have it at 55mm, you'll get f/5.6, in between you'll get some other maximum aperture on a roughly linear (?) slope.
posted by 0xFCAF at 11:03 AM on December 29, 2009
posted by 0xFCAF at 11:03 AM on December 29, 2009
Response by poster: Thanks guys! I feel like a bit of an idiot!
posted by kylej at 11:04 AM on December 29, 2009
posted by kylej at 11:04 AM on December 29, 2009
Looks like others beat me to my first suggestion, so I'll just say that if the zoom range isn't the issue after all, take the kit to your local camera shop and try swapping bodies and/or lenses. That will let you see where the behavior "travels" and thus determine whether the fault is in the body or the lens.
posted by Greg_Ace at 11:14 AM on December 29, 2009
posted by Greg_Ace at 11:14 AM on December 29, 2009
Response by poster: Just to clarify, I was zoomed out, and as soon as I zoomed back in all was well. Thanks again everyone!
posted by kylej at 11:20 AM on December 29, 2009
posted by kylej at 11:20 AM on December 29, 2009
Don't feel like an idiot... at least, not more of one than I was when this stumped me. And I'm an optical engineer.
posted by IAmBroom at 8:31 PM on December 29, 2009
posted by IAmBroom at 8:31 PM on December 29, 2009
This thread is closed to new comments.
posted by chrisbucks at 11:02 AM on December 29, 2009