Apo-Ronar question

[Paul Kinzer]

I recently bought a matched pair of Apo Ronar lenses. They came on a big board, obviously from a process camera. One is a 240mm and the other a 760. Can anyone explain some writing on the aperture scales on the board? On the scale for the 240, it says 'Apo Ronar CL 240-800', and on the other scale it says, 'Apo Ronar CL 760-1200'.

What do the 800 and 1200 signify?

[Dan Fromm]

240-800, good for 240 - 800mm Apo-Ronars. Similarly for 760 - 1200.

There may be several scales around each lens, each scale marked with a focal length. I've extracted several sets of process lenses from panels like the one you described, all had multiple scales.

[Paul Kinzer]

Ah! Okay, that makes sense.

Thanks, Dan!

There are multiple scales, and with your explanation, they are much easier to understand now. I won't be using them, but I like to understand things.

[Bob Salomon]

Ah! Okay, that makes sense.

Thanks, Dan!

There are multiple scales, and with your explanation, they are much easier to understand now. I won't be using them, but I like to understand things.

CL means a Linda riser aperture scale.

[Dan Fromm]

CL means a Linda riser aperture scale.

Autocorrect run amok?

[Bob Salomon]

Autocorrect run amok?

Absolutely! Shouldn’t post at a car wash!

Linear!

[Paul Kinzer]

I had already read about what 'CL' means somewhere else on the forum, and it was one of you two who wrote it, if I recall correctly.

[angusparker]

The 760 is a great lens and mounts nicely in an Ilex 5. Light and large coverage.


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[Mark Sawyer]

Where can I get one of these "Linda riser aperture scale" lenses? I must have one!

[Pfsor]

Where can I get one of these "Linda riser aperture scale" lenses? I must have one!

Linda at the car wash sells them!