Originally Posted by
Bernice Loui
Does this lens have "right to return" to seller?
This 135mm f3.5 Xenotar appears to be a wheeler-dealer lens in barrel to found shutter swap job. Xenotars were sold in barrel with the lens cell threading that would fit into a Compur or Copal shutter making it easy enough to perform this swap over from barrel to shutter. Problem is, the lens cell spacing could be off causing optical performance issues. Big tel tale to this is the mis-matched aperture scale on the Copal shutter.
IMO, this lens is a non-starter, should be returned to the seller given what it is.
As for shutter speeds, give up the idea of these shutters being any where near accurate/precise at their highest shutter speed setting. Over the decades of using shutters like this, zero have been accurate/precise at their highest shutter speed setting. The proper way to apply large lens apertures for images recoded is to use neutral density filters as needed to bring the shutter speed down at the large aperture needed. Unless you're using this lens/shutter hand held press camera style, once the camera/lens/shutter is on a tripod, extended shutter times is not much of an issue. Use a cable release.
Curious, what are your expectations for this 135mm f3.5 Xenotar -vs- the 135mm f5.6 Nikkor?
Bernice
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