| Photography Forum: Photography Help Forum: |
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Q. F-stops on my Canon Elan II.
Asked by Kris Wahlstrom
(K=636) on 8/31/2001
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Heya people!
I was out shooting the other night, and something was confusing me about my camera. This is something that I had woudered about before, but never really looked for an answer. Anways, how come 90% of the time I cannot set the f-stop manually past f/22?? Do other Elan users have that problem? Is the Elan 7/7E plagued by this same problem? B/C it would seriously detere (how do you spell that?) from buying the Elan 7/7E like i planned too in the future. Anyways, Sometimes, I can set it to f/45 (but like i say, only someimes). It is metered fine and I can take a picture. But, I go to use the same f-stop and it wont let me!! :( How upsetting! Even in its completely "Manual" mode it wont let me use lower f-stops for some reason. Only at times will it let me!! Any help would be greatly appreciated! Thanks in advance!!!
Kris.
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al shaikh
(K=15790) - Comment Date 8/31/2001
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Which lens & when you are able to set it to a very small aperture are you focusing very closely on something? You maybe hitting F45 because your focusing very closely and extending the focus to its max, which would give you a f45 reading.
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Bob Jarman
(K=3145) - Comment Date 8/31/2001
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Kris,
What lenses are you using. This is probably a stupid reply, but you cannot set the camera body for a lens opening that isn't supported by your lens. At least I don't think you can. :-)
Is it possible that you have a lens that has a f45 minimum aperture that it works with, and that the times you can only go to 22, that is the limit of the lens you have mounted? The other thing might be if you are using a third party lens, it is possible that the reverse engineering isn't quite perfect.
I used an Elan II for several years, never had a problem with canon lenses.
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Deleted User
(K=2231) - Comment Date 8/31/2001
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I dont have a canon but many zoom lenses are variable aperture, which means the range of avaialable aperture settings are dependant on zoom settings (focal length).
Both the minimal aperature and maximum aperture can change as you zoom in and out. Also, sometimes the actual aperture ring setting changes as the focal length changes.
You gotta be real careful to pay attention to it.
A lens I have changes aperture on its own and, as I usually meter manually, I sometimes forget to recheck the actual aperture at the focal length I have chosen, as it always tends to change on me in the most inopertune time.
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Debbie Groff
(K=9569) - Comment Date 9/1/2001
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I have the Elan 7 and I don't know anything about anything, but found out the other day that I had my 4.0 100-300 zoom on and it went to f/37. Quite surprised. Have been reading about lenses (mine are Canon), and I read that the 4.0, the cheaper ones that is, may not have the quality of the more expensive 2.8, which makes sense, but didn't realize it would make that much difference in a variety of situations. As for the f/stop going beyond f/22 I know now that I can go to manual totally and set what ever I want and my camera will accept it, not that the image would turn out right, underexposed or whatever...Dave brought up an interesting thought tho. f/38
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Teymoor Ghashghai
(K=45) - Comment Date 9/6/2001
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Ok, zoom lenses (less expenisve ones, and all brands) change their aperture as they change focal length.
Say you have a Canon 28-105. If you look at the barrel and read the aperture on the front of the lens it reads f/3.5-4.5. At the 28mm setting it's fastest aperture is f/3.5. As you zoom out the aperture shrinks to f/4 then finally f/4.5 once you reach 105mm. The same goes for the long end. At 28mm you will get f/22 and at 105mm you will get f/32 (on this particular lens).
I would recomend you pick up a Canon lens brochure and read all the tech-e specs in the back. That will give you the specifics on the particular Canon lens you are using.
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