The Pentacon M42 is not as elaborately manufactured as the - for a size comparison in the picture shown - Asahi Pentax M42 bellows or, e.g. the Olympus OM bellows. But it´s solidly built, trusty, and can be bought for much less money, and it does the job of a bellows, i.e. functioning as an extendable dark tube.
Both standards are moveable which is an advantage, as I had learned from Master Charles and have meanwhile experienced myself.
In contrast to the other more expensive bellows the standards of the Pentacon bellows are not moved by gear pinion, instead they are clamped to the upper part of the double dovetail (i. e. X in cross section) rail by knurled screws (which are concealed in the photo below), and unclamped to be slid along the rail by hand.The distance from the lowest point of the M42 thread to the upper surface of the rail measures 65 mm.
Fully streched the Pentacon bellows delivers a maximum extension of 220 mm.
I thought this information about the Pentacon M42 bellows could be of some use for some of you.
--Betty
Now, let me introduce, accompanied by some appropriate music
:
Auferstanden aus Ruinen und der Zukunft zugewandt ...A snapshot of the huge East German made Pentacon M42 bellows, alongside the Asahi Pentax M42 bellows for a size comparison, both shown from the end
where the camera would be attached.
edited the subject
