Al is right on this one. The higher the F-stop number, the greater
the depth of field is, i.e more of a three dimensional object will be
in focus. The drawback to this is less light enters the lens thus
requiring a longer shutter speed. And, if your not careful, a
background that is too close can be in focus as well. There are many
different ways to take good quality pictures of
meteorites, experimentation is the key.
Best,
John Gwilliam
At 06:50 AM 1/27/2010, al mitt wrote:
Hi Erik and all,
I'd think just the opposite would be correct. A higher f-stop (f 22,
18 etc.) would create a better depth of field and the more open your
iris is on your camera (lower f stop, 1.8, 2.0 etc.) the less
focused your items would be. I think you just stated it backwards. Best!
--AL Mitterling
Mitterling Meteorites
----- Original Message ----- From: "Erik Fisler" <erikfw...@msn.com>
To: "meteorite-list" <meteorite-list@meteoritecentral.com>
Sent: Tuesday, January 26, 2010 3:51 PM
Subject: [meteorite-list] Meteorite Photography (Must read!)
The third thing is auto-blending. For those of you who have SLR's
you will notice that shooting at a higher F-stop like F1.8 or F2.8
is a lot sharper than shooting at a lower F-stop like F22. The
problem is, you might have to drop your F-stop to make sure the
whole meteorite is in focus.
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Regards,
John Gwilliam
Some people are born on third base
and go through life thinking they hit a triple.
[Bob Dylan]
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