FZ200 Diffraction Limit - Panasonic Tech Service

Started Aug 27, 2013 | Discussions thread
Ron Tolmie
Regular MemberPosts: 370
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Re: Resolution at long focal length settings
In reply to LTZ470, Aug 28, 2013

Ian:

I should have noted that my examples (3mm=sharp, 1mm=soft) apply to long and short focal length lenses that have a normal field of view, equivalent to a 50mm lens for a FF camera. If you narrow the field of view then you will also need to narrow the angular resolution to maintain the same image sharpness. That is why telescopes need large apertures.

Ron

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Ron Tolmie

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