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09/28/2006 07:15:59 PM · #1 |
Hi all,
I'm new here, so go easy on me if this is a ignorant question. Looks like a nice place, with some helpful people, hope you can help me out. :)
I'm trying to work out how to adjust the depth of field on my camera so I can get object of slightly varying distances in focus. I have read the destructions, but they're not clear to say the least. Can anyone point me in the right direction??
Thanks,
Andy |
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09/28/2006 07:25:55 PM · #2 |
| An excellent tutorial is available at THIS location. This site includes calculators for specific lens settings and also calculates the hyperfocal distances. |
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09/28/2006 07:27:10 PM · #3 |
| depth of field is directly proportional to aperture. The smaller the aperture number, the more depth of field. |
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09/28/2006 07:29:02 PM · #4 |
Originally posted by Mo:
depth of field is directly proportional to aperture. The smaller the aperture number, the more depth of field. |
Translation, f/22 will have more in focus than f/4
=] |
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09/28/2006 07:45:02 PM · #5 |
| yeah, destructions usually do not lead to anything. |
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09/28/2006 08:40:15 PM · #6 |
Originally posted by tryals15:
Originally posted by Mo:
depth of field is directly proportional to aperture. The smaller the aperture number, the more depth of field. |
Translation, f/22 will have more in focus than f/4
=] |
And after you've digested that bit of wisdom, here's something I hope won't confuse the matter:
Apertures beyond around f/11 obey the law of diminishing returns. In part because of the quality of the lens (most lenses are optimized for about f/8 to f/11), but also because of the ability of the sensor to resolve the detail in the image (due to the size of the pixels).
There are many good reasons to go beyond f/11 ... but "absolute sharpness" in your image is not one of them.
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09/28/2006 08:44:38 PM · #7 |
Originally posted by tryals15:
Originally posted by Mo:
depth of field is directly proportional to aperture. The smaller the aperture number, the more depth of field. |
Translation, f/22 will have more in focus than f/4
=] |
...but only with a tripod :P
Don't forget that shutter speed will be affected. |
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09/29/2006 08:19:12 AM · #8 |
Thanks everybody! Your replies are so quick!! Hope it's always like this! Lol
Andy |
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