Meyer Orestor 100 aperture

[alex_d]

Hello,

I have 2 versions of this lens.

- Zebra has lazy aperture => already fixed,
- non-zebra has a broken aperture blade.

Now questions:
- is the mechanism of both lenses the same (internal)?
- does Orestor shares aperture blades with other Meyer lens (of pentacon) so I could swap a blade?
- lazy aperture on this model is I suppose because of the old grease around this push-dof-button and it's mechanism? => fixed

Thanx

[Lightshow]

If they have the same blade count, you might be lucky enough that you can swap them, if the blade count is different, then you'll have to source a replacement blade.
But before we go too far, is the blade actually broken? I have seen a few that have a blade or two that have jumped out of their slots for some reason, and all it takes is a disassembly and reassembly to fix it, during the reassembly keep an eye out for the cause of the blade jumping out of place, like something has become loose and requires some attention.

[alex_d]

hi, thanx for reply.

I got the lens with already removed broken blade, lens now has kind of a diamond shape aperture.

Actually I need one spare blade to fix this lens, thats why im curios of I could use from other Meyer lens as I have here few around (50 / 1..

Other lens (zebra) already fixed, aperture blades were dirty.

Bye

[Pancolart]

Three blades removed, you get triangular bokeh: https://www.youtube.com/watch?v=80Vcc0Gb-oE