Thread: How do you estimate focal reduction?
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Old 31-10-2007, 10:44 PM
ozstockman (Mike)
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ozstockman is offline 		 
Join Date: Mar 2007
Location: Kenmore Hills, Brisbane, QLD
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Hi,

I have no idea if there is any tools to do it automatically so I did it in PS manually :-) The second image seems to be taken at f/2.4. You can see both images compared below

cheers,

Michael
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