Hi,
I read a bit, and search for more topics, but still didn't get that answer.
How to recognize a Petzval B&L ?
Have you any advices?
Hi,
I read a bit, and search for more topics, but still didn't get that answer.
How to recognize a Petzval B&L ?
Have you any advices?
Hi,
I read a bit, and search for more topics, but still didn't get that answer.
How to recognize a Petzval B&L ?
Have you any advices?
They usually have a black band right behind the hood, as seen here. Some Wollensaks also have that band though. They always have a short hood, and the knurling on the knobs is usually the same. I'll look for a better picture of the knob.
Garrett
flickr galleries
Thanks for that answer
How many lenses to compose a Petzval? Four right?
And if any lenses are missing? But sell as a Petzval
Generally a B&L Petzval can be demounted, not cimented, and all lenses can be clean separately?
A petzval has two separate lenses in the rear, and two cemented (glued) together in the front.
Garrett
flickr galleries
Garrett's advice is a good starting point, but I have a 15" Bausch & Lomb projection Petzval that is all black (with a serial number around the 1,000,000 mark). I bought it online and had no way of knowing what the configuration was until it arrived. Fortunately, it turned out to be as advertised:
I also have a number of B&L "Cinephor" projection lenses that are Petzvals, as well as a few labeled "Cinephor" that are not. It can be very confusing.
Jonathan
Yes, i don't know how to recognize the B&L projection lenses petzval or not;
And the black ones seems to be petzval most of the time, but how to be sure...
This is Petzval?
http://www.ebay.com/itm/Antique-pate...vip=true&rt=nc
http://www.ebay.com/itm/Antique-pate...p2047675.l2557
My guess is both of those are Petzvals since they seem to be rather early examples, but I cannot say with 100% certainty.
Jonathan
What about this one?
http://www.ebay.com/itm/Vintage-Baus...vip=true&rt=nc
Seems Petzval?
And very expensive in some auctions, that was a good price for it?
No flange, that could be a problem i guess, but seems quite rare?!
There was also this:
http://www.ebay.com/itm/Vintage-Baus...vip=true&rt=nc
The same way you recognizee any Petzval. Cemented pair up front. Two elements air spaced in the rear. Read http://antiquecameras.net/petzvallens.html
Good luck
Dan
Antique & Classic Camera Blog
www.antiquecameras.net/blog.html
Bookmarks