JPL wrote:
I think I have more than 100 lenses of different age from the film era. I would say that 60-70% or maybe more of those lenses are good to excellent and can deliver just as good pictures on digital cameras as on film cameras. The rest is not worth using. There are 3 types of old lenses that are not good. First there are old zoom lenses, many of them are not good, then we have old wide lenses, 28 mm and wider. Many of them are not good. And at least we have all kind of old no name budget lenses that are of low build and optical quality, no matter the focal length or if they are fixed focal length or zoom lenses. The rest is all kind of prime lenses, european, japanese, russian, that are good to excellent. I have lenses that are 35 mm, 40 mm, 50 mm, 55 mm, 85 mm, and so on up to 500 mm that I am very happy to use. Of course they are all manual focus and manual everything and with no optical stabilizing. So you will only get good results if you hold your gear steady or use a tripod and use them on mirrorless camera for quick and accurate focusing. In other words, you have to use them in the same way on digital as when they were used on film cameras.
I think I have more than 100 lenses of different a... (
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Some Camera bodies have in-body stabilizing for example every Pentax Dslr , the light metering and focus confirmation also works. You can also set a focus distance and use trap focus. Or even find a point to focus hold down the shutter button adjust the focus till the shutter fires.