Reikan FoCal Mulipoint Focus Test

Started Jun 26, 2012 | Discussions thread
Terje H.
Regular MemberPosts: 176
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Re: Target distance?
In reply to Frank D'Amato, Jun 28, 2012

Frank D'Amato wrote:

you need to have all the focus points sitting in the target itself, basically fulling the viewfinder.

So for my 105mm on my D800 I was only about 2 feet away. Target was printed on 8.5X11 paper
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If distance has an influence on the measurements, would 2 feet be an irrelevant distance?

I mean (no offence), how often do you take photos at 2 feet with a 105mm lens?

I found the documentation for this test that the best distance is 50x the lens mm. It would be 5.25 meter. 2 feet is 0.6 meter, about 11% of the distance.

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  • Terje

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