Exakta extension tubes are an oddity - the male and female bayonets unscrew
from the tubes, which all have threads, not bayonets. And the two bayonets
can be screwed together for a very short extension. I have a spare set if
you have an urge...
....as well as the Kopil Bellowsmat tilt/shift bellows. With a CZJ Tessar
50/2.8 sunken mount, which is a predecessor of the Zuiko 135/4, a macro
lens which can focus to infinity.
Sorry for the OT, it was a big boy who started it, but he ran away....
On Sat, 11 Mar 2023, 22:45 Moose, <olymoose@xxxxxxxxx> wrote:
> Six more pix from the Steinheil Culminar 135/4.5 <
> On 3/10/2023 7:08 AM, Wayne Shumaker wrote:
> > Nice. Curious, does the back end tube come off or is replaceable between
> a longer one and a shorter one? I saw one of
> > these available with a longer tube.
> As the lens was sold, it fit the exacta mount with infinity focus. All the
> other examples I saw for sale were in that
> default state. As removal of the back tube is obscure, I can't imagine
> there are two lengths.
> On this site, they talk about removing the glass and aperture "head" from
> the focusing helix, for mounting on a bellows.
> To do that, though, requires a special adapter, Novoflex "CULEX" or
> On mine, the tube behind the focusing helix has been removed and the mount
> from it screwed onto the back of the helix. I
> assume from this that the tube part of the lens tween helix and mount is
> male/female screw thread. I don't have that part.
> > Now to just make the frog blow the bubbles.
> I'm not sure I have the patience to teach an old frog new tricks.
> > Did you do much post processing? I assume the contrast is low for the
> No post processing of brightness, contrast, etc., but for one of this
> batch, which is in two versions. All others with
> the look of Sony sensor system and LR/ACR Raw conversion defaults.
> I've been having fun with the lens.
> Tubeless Moose
> What if the Hokey Pokey *IS* what it's all about?
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