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Erik Magnuson | profile | all galleries >> Lens and Camera tests and examples >> $10 lenses >> Pentacon Auto 50mm f/1.8 tree view | thumbnails | slideshow

Pentacon Auto 50mm f/1.8

Also known as the Meyer Oreston 50mm. Mine is the 2nd generation, single coated.
f/1.8-f/16, 6 aperture blades, click stops half f-stops
6 element, 4 group double-gauss
M42 screw mount, mine has the stop down pin JB-welded down. 49mm threads
Normal focus from 1.1ft to inifinity
Working distance on bellows from 4" to ~2.5" Magnification to about 3:1 (reversed)
IR+UV
IR+UV		 Reversed on Camera
Reversed on Camera		 Reversed on 75-300mm IS min
Reversed on 75-300mm IS min		 Reversed on 75-300mm IS mid
Reversed on 75-300mm IS mid
Reversed on 75-300mm IS max
Reversed on 75-300mm IS max		 Reversed on 75-300mm IS max
Reversed on 75-300mm IS max		 Ant Butt
Ant Butt		 Leaf river
Leaf river
Reversed tube mount
Reversed tube mount		 Reversed tube mount
Reversed tube mount

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