The problem of the scale (and difficulties with manual focusing) are solved by installing custom firmware on the camera (in my case, Canon) All focusing problems become invisible (due to the correct implementation of digital-optical focus analysis), even people with low vision will be able to focus.
Canon EOS SLR Camera Lens EF 24-105mm f/4 L IS USM
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Canon EF 50mm f/1.8 II Fixed Lens - Discontinued by Manufacturer
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Black Canon EF 24-105mm f/4L IS II USM Lens - Model 1380C002
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