Reconciling the Thick Lens Model with P2P Optical Bench

Started 4 months ago | Discussions thread
Mark Scott Abeln
Mark Scott Abeln Forum Pro • Posts: 18,154
Re: Reconciling the Thick Lens Model with P2P Optical Bench

It's not just macro photography.

Internal focus lenses—from what I understand—change in focal length with focus, even for non-macro photography. In some lenses this effect is quite strong, even for portrait photography, and is quite obvious.

 Mark Scott Abeln's gear list:Mark Scott Abeln's gear list
Nikon D200 Nikon D7000 Nikon D750 Nikon AF-S DX Nikkor 35mm F1.8G Nikon AF Nikkor 28mm f/2.8D +4 more
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