flange focal distance

Started 2 months ago | Discussions
KPM2 Contributing Member • Posts: 596
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

Luis Fonseca Regular Member • Posts: 346
Re: flange focal distance
1

In theory flange focal distance can be overcome.

Just make go deeper inside the camera like with this prototype.

Obviously if the flange focal distance is smaller and the mount opening larger it is easier to design lenses and adapters.

So, in theory, Nikon Z mount is the best one today.

 Luis Fonseca's gear list:Luis Fonseca's gear list
Pentax K-5 Sony Alpha NEX-3N Pentax K-1 Pentax smc FA 50mm F1.4 Pentax smc DA* 16-50mm F2.8 ED AL (IF) SDM +12 more
OP KPM2 Contributing Member • Posts: 596
Re: flange focal distance
2

Hello Luis Fonseca

Luis Fonseca wrote:

In theory flange focal distance can be overcome.

Just make go deeper inside the camera like with this prototype.

Obviously if the flange focal distance is smaller and the mount opening larger it is easier to design lenses and adapters.

So, in theory, Nikon Z mount is the best one today.

You are right, but I did wonted to show if they really use that all the time.

Now that lens can change every mirror camera into a mirrorless....after one shot

BTW, and really just for fun... the analog film was easier to handle

My smallest mirrorless FF camera with a 35mm f2.8 lens is the :

best regards KPM2

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