Leitz Focometer sensor (OK?)

mug · Aug 9, 2025

Recently I was able to buy a Leitz Focometer . It also comes with a sensor which I wonder if it is still good.
The glass is not clear and has an irregular structure.
Does anyone have experience with this sensor? Can you tell me more about it ?

If photo is not visible: direct link :

https://i.postimg.cc/rmp0DFwK/temp-Image7-LNp-Qf.avif

https://i.postimg.cc/tJZszSPb/temp-Imagep9-LTxp.avif

https://i.postimg.cc/0QH6DRzZ/temp-Imagewvvk-GT.avif

koraks · Aug 9, 2025

It appears that postimg does not allow deeplinking into forum posts. I've copied the images below for convenience's sake:

Note that on Photrio there's no need to upload images to an external site before posting. You can simply copy-paste into a post directly.

mug · Aug 9, 2025

Thanks for posting the photos properly.
And I learnt something for posting the photo's better next time.

Ron789 · Aug 10, 2025

I have no experience with this sensor but I use other sensors. Whether the sensor is "theoretically/technically" accurate or not is not that relevant. You will need to calibrate the sensor to the enlarger, timer and paper anyhow. The only thing that matters is that the sensor is consistent.

ic-racer · Aug 10, 2025

What is the sensor connected to?

mug · Aug 14, 2025

ic-racer said:
What is the sensor connected to?

Baeuerle "BS 752" = Leitz Focometer

The only thing that matters is that the sensor is consistent.
OK, I agree. But with sensor is difficult to measure (compare to the big bright sensor with alignment capability from Wallner)
Seems this sensor from Leitz can only measure integrally (which I'm not used to)

Leitz Focometer sensor (OK?)

mug

koraks

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Ron789

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