Is lens testing at chart distance really an accurate measure?

Started 2 months ago | Discussions thread
Erik Kaffehr
Erik Kaffehr Veteran Member • Posts: 4,750
Re: measurement as reality check

Bernard Delley wrote:

Erik Kaffehr wrote:

I see your point, but what criteria can we use to wisely spend our money on lenses?

I returned a promising lens the same day, after I had measured its image field MTF .

Hi Bernard,

Thanks for sharing! Would be interesting to read more about it!

Best regards

Erik

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Erik Kaffehr
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Magic uses to disappear in controlled experiments…
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