Comments on: Sony 70-200mm II/a-1 (no teleconverter!) Rocks La Jolla https://www.birdsasart-blog.com/baa/2023/12/20/sony-70-200mm-ii-a-1-no-teleconverter-rocks-la-jolla/ The blog of bird photographer Arthur Morris Fri, 07 Mar 2025 15:12:23 +0000 hourly 1 https://wordpress.org/?v=6.8 By: Arthur Morris/BIRDS AS ART https://www.birdsasart-blog.com/baa/2023/12/20/sony-70-200mm-ii-a-1-no-teleconverter-rocks-la-jolla/comment-page-1/#comment-2062973 Thu, 21 Dec 2023 13:00:35 +0000 http://www.birdsasart-blog.com/?p=88637#comment-2062973 In reply to Guy Bralley.

Thanks, GB. See my response to Joel 🙂

with love, artie

]]> By: Arthur Morris/BIRDS AS ART https://www.birdsasart-blog.com/baa/2023/12/20/sony-70-200mm-ii-a-1-no-teleconverter-rocks-la-jolla/comment-page-1/#comment-2062972 Thu, 21 Dec 2023 12:59:45 +0000 http://www.birdsasart-blog.com/?p=88637#comment-2062972 In reply to Joel Eade.

Thanks and fixed.

What you say is true — the closer you are to parallel, the greater the depth of field. Consider, however, the following:

At the focus distance of 81.7mm with the 70mm focus distance and the f/2.8 aperture, the depth filed in front of the point of focus is 47.85 meters, and the depth of field behind reaches to infinity. That is one ton of depth of field.

with love, artie

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