Sometimes, a simple solution to a problem takes ages to appear. I’ve been using a couple of cameras that rely on zone focusing for many years and the depth of field scale on them has been vague and difficult to work out. I have got used to them now, but the other day it suddenly occurred to me that I should look up the actual depth of field for these lenses online and find out what they were capable of when stopped right down.
I went to the website; ‘Depth of Field Master’ and put in the various settings until I had worked out maximum depth of field for these two cameras and my 24mm lens. The brainwave came when I realised that I only had to colour code five aperture markings; f5.6, f8, f11, f16 and f22 and I could establish a quick and easy way to set the lens for depth of field without any calculations or messing about.
I decided to mark f5.6 as dark green, f8 as light blue, f11 as red, f16 as light green and f22 as yellow. If I put the colours next to the apertures, and also at the point on the lens where the hyperfocal distance was, I could get away not worrying about focus.
I used Humbrol enamel paint which is sold for model painting and I applied it with a fine brush (stir well first).
I’m not bothered about the resale value of these cameras, I expect to use them for the rest of my life, so why not make that job simpler?
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