Losing sharpness
Nov 1, 2014 13:45:21 #
I am doing some work for a colleague, shooting live scorpions. They sit still long enough to perform a z-series of about 10 shots. However, when I look at the stack at 100%, the fine bristles look a little fuzzy. At first I thought it might be a problem with circular diffraction, since I was shooting at high f stops, but I still see it at f11.
Anyone out there with suggestions? Thanks
Anyone out there with suggestions? Thanks
Nov 1, 2014 13:50:41 #
Nov 1, 2014 14:58:35 #
Nov 1, 2014 15:08:08 #
Nov 1, 2014 16:45:22 #
If you are focus-stacking, you should be using the optimum aperture for your particular lens. This is usually 2-stops down from wide-open.
Which lens (mfr & focal length), and which aperture did you try?
P.S. - The proper term is small or large aperture, not high or low f/stop.
Which lens (mfr & focal length), and which aperture did you try?
P.S. - The proper term is small or large aperture, not high or low f/stop.
Nov 2, 2014 01:16:43 #
My aperture of choice for focus stacking is f/8. If you pay attention to focal plane, you should be able to get a decent stack with ten images. It's hard to say without seeing a posted image with "store original" checked.
Nov 2, 2014 03:07:29 #
oldtigger wrote:
Small aperture diffraction & circular diffraction are the same phenomenon: what is circular diffraction?
FAQ: Why are my Digital Images Sharper at f/8 than f/22?
http://www.uglyhedgehog.com/t-59819-1.html
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