flange focal distance

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KPM2 Contributing Member • Posts: 587
flange focal distance

Hello

In the discussion about mirrorless and there shorter flange focal distance, which can make the lens smaller or shorter, there is a point, I see it not often mentioned:

It's about the position of the back lens:

You can go as near as you can

or simple... let it be a little back in the case

The first position makes the lens construct as short as it can, but in the second example, it's like the lens was made for a bigger flange focal distance, and it must use therefore it's own case for to keep the back lens more fare away for a shorter flange focal distance.

best regards  KPM2

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