Oregon Jim
Member
Kevin: Oops... now I see that you already mentioned the adequate eye relief in your first post. Sorry.
Hmmm, did you cause a run on these? Adorama is now "temporarily out of stock".
http://www.adorama.com/NK515M.html
Just twice the price of the monocular. They are $430 to $460 everywhere else.
http://www.adorama.com/NK515.html
Yes Fugl, that is the monocular to which I was referring. The Zeiss 8x30B. It isn't bright like the current ones. I wish it could be coated with the modern stuff. I picked up one that had some slight haze to it. The prisms had some kind of deposit on them, but not fungus. I have learned how to disassemble optics over the years for cleaning. When one "breaks into" an older Zeiss. the precision of everything becomes readily apparent. I discovered with the the lids of the Zeiss monocular a flat neoprene gasket unlike any other which really seals things nicely. The prism recesses are so precise that after removing the individual prisms for cleaning, they can be reset easily. Of course a monocular with slight prism misalignment won't be the problem for colimation that a binocular would present. I do not recommend tearing into a quality piece of optics for cleaning unless one is prepared with the correct tools and know how. I am self taught and have made a number of mistakes (costly ones) until I gained enough experience to know my limits. But that is part of the fun of working with optics. John
If you look from the objective end of your monocular, you can easily detect haze if it is present. But yours may not have any. I have found that individual focus binoculars of quality manufacturing tend to be less contaminated by the movement of focusing than CF focusing which has a real bellows effect. A monocular of quality will allow some air movement but not much and normally is highly water resistant. Zeiss marketed most of their monoculars with an adaptor to fit cameras as a telephoto lens. They also included a lovely leather case with their monoculars. I seriously doubt that we will ever see such careful structural precision and finish as is evidenced by the older Zeiss optics. Your Zeiss prisms are of special design unlike any other that I have seen. The older ones are not glued in but held by compression with a flat spring. If the glass to metal mating is really precise, the glass will take on the strength of the metal. I have yet to find an old Zeiss with chipped prisms (of course that happens), but have run across many Japanese porro glasses with the prism chipped because of the less precise seats which hold the prisms. Those (probably now deceased) older German craftsmen were really good. My monocular sits in my car for handy use while traveling our Montana roads. John
Thanks for that--fascinating stuff. I just had a look from the objective end of my glass as you suggest and didn't see any obvious hazing, so that's good.
I've always wondered,by the way, if the 8 x30B monocular was the same optically as the contemporary 8 x30B Zeiss binoculars. As far as I can tell from photos (I never had a chance to handle the binoculars) the 2 instruments look much the same. Is this just a matter of styling, do you know? Have you had any experience with the old 8 x 30B porros & if so what do you think of them?
What is the alternative to Nikon HG 5x15. I need something as small and light and long eye relief. Can someone sell it to me?