on 'bay: Goerz 38mm f4.5 Aerotar Biogon Lens - but only 1/2 lens

[Dr Klaus Schmitt]

Had a closer look at that one and the seller seem to have "forgotten" that the Biogon is a about symmetrical design. He insists of it being complete and also that it does not have an aperture, as I had asked about it. Well, does not really speak for him I would say...

bay 280738354376

[Dan Fromm]

Not uncommon, alas, with lenses from aerial cameras.

I tried to report it, eBay has made it impossible to explain frauds like this one.

[Dr Klaus Schmitt]

That's why I listed it here Dan. From the comments the seller responded with, he seems to be pretty knowledgeable, the more it upsets me that he sells a non-functional lens as a complete, functioning one.

[RickV]

It looks more like a tiny fixed aperture metrogon to me....

[Dan Fromm]

Rick, USAF documentation is very clear about what the 38/4.5 Aerogar is. Biogon, not Metrogon. The two types are radically different.

Even if it were a little Metrogon, Klaus is right, the lens on offer is incomplete. The rear cell and barrel are missing. The diaphragm is in the barrel that isn't there.

[Dr Klaus Schmitt]

Rick, why not google for the patent number - it is printed on the lens and you'll see it is Ludwig Bertele's Biogon. Too difficult I guess

[Dan Fromm]

Klaus, not an aerial camera lens, on ebay.de. 110753437482

[Emmanuel BIGLER]

on ebay.de. 110753437482

Aaaargh !! And not even deep enough to serve as a drinking cup for zeiss-o-philes !!

[Dr Klaus Schmitt]

hee hee, nice one, but too large "cup" for me..

Is this getting the new 'bay fashion now, to sell 1/2 lenses and maybe a few months later the 2nd 1/2??

[Dan Fromm]

Um, Klaus, scranor is asking more for his front cell than complete 38/4.5 Biogons mounted for aerial cameras typically sell for. Sigh.