Aperture/focusing distance changes at different FL for zoom lenses?

Started Mar 21, 2013 | Discussions thread
Ulric Senior Member • Posts: 4,386
Re: Aperture/focusing distance changes at different FL for zoom lenses?
Many seemed to rapidly close down the aperture, and some had very long minimum focusing distances.

It's not that the aperture closes down, but that the focal length increases.

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Panasonic Lumix DMC-GF3 Olympus OM-D E-M5 Panasonic Lumix DMC-GM1 Olympus PEN-F Panasonic Lumix G 20mm F1.7 ASPH +13 more
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