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08/03/2004 01:24:32 AM · #1 |
This may be a stupid question but if you wear glasses and go to take a photo using manual focus, how much do the eye glasses affect this? What may be in focus for me may come out fuzzy! Is this a true assumption?
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08/03/2004 01:54:53 AM · #2 |
| I would have thought that you are more likely to take a fuzzy picture without your glasses on. |
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08/03/2004 01:57:11 AM · #3 |
| Yea I've been thinking about that lately. I guess most decent cameras have that diopter deal that will let you manually adjust the focus through the viewfinder... |
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08/03/2004 02:19:58 AM · #4 |
Presumably with your glasses on and at normal viewing distance you are seeing what someone with "perfect" vision is seeing. If you focus without your glasses, you are making the camera make the correction for your eyes.
If you are looking through a microscope or telescope, it's better to do it without glasses, but don't expect to tell someone "here, look at this" if you do : ) |
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08/03/2004 02:29:28 AM · #5 |
My camera has a dial next to the viewfinder that allows me to adjust how it displays what I am seeing. I have set it so I don't need my eyeglasses when using it. Not that it matters; my camera does not have a manual focus (wish it did) and I rarely use the viewfinder (it is non-TTL).
I presume mine is not the only camera with this feature; how well does it work?
David
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08/12/2004 03:47:18 AM · #6 |
| When working with a normal SLR, you are looking at a filtering screen (AFAIK). A quick test with and without my spectacles looking through the viewfinder of my 10D shows that I simply can't focus to full sharpness without my glasses, but the sharpest position of the blur is in the same place as proper focus with my glasses on. |
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08/12/2004 03:52:14 AM · #7 |
You can get diopter and astigmatism correction lenses that clip onto your viewfinder for a lot of SLRs.
When I was a kid my uncle handed me his camera to take a pic and no matter what I did, I couldn't focus it - everyone thought I was being dumb/jerky until someone realized he had his astigmatic corrector on and there was no way I could have seen a focused image through that thing.
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08/12/2004 04:12:13 AM · #8 |
Let me throw one important thing I have just found out in the focus mix. I use a Split Image focus screen in my camera (some camera's allow you to change them), because I do where glasses, and just what The GeneralE was talking about. This is so there is no question on what is tack sharp - align the split and its perfect everytime... BUT, after three trips to Canon CPS, which btw they didn't even catch it until now, THE EVAL and SPOT METERING DOES NOT WORK. Of course that is buried in fine print at pg 164 of the manual of the 1Ds and even Canon tech's took three trips to figure out why its overexposing by as much as 5-STOPS. So BEWARE, if you think of trying this great focus method, have your hand meter at all times!
John |
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08/12/2004 04:32:49 AM · #9 |
May I add it is almost impossible to get good exposure when you have your sun glasses on! lol I found this out the hard way using the LED screen!
Bob
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