Dufay 4.5/200

[vaskhod]

Hello!

Do any forum members have info on Dufay lenses? I purchased a 4.5/200 lens today. The lens appears to be m42x1 mount, has a 12 blade iris. The build is good. The lens serial is #33781 - quite a low production number. Looks like a 1970's lens. A (single?) magenta coating. Two-stage, preset aperture mechanism. The front cap is Mamiya Sekor - random cap, or a connection here?

I can post a few samples hopefully within a few hours. So far, i've been unable to find information about the lens or even Dufay on the web, other than a couple of links to far-east auctions.

Any information from the forum would be appreciated!

Thankyou

[luisalegria]

Dufay sounds like it may be one of many merchants brands used for Japanese lenses from the 1950's-1970's. Dufay was actually a color film process (an early European competitor for Kodachrome, etc.). Perhaps the brand has something to do with that. Many brands were re-used for completely different products.

Many importers or even camera stores put their names on lenses purchased from a group of Japanese lens companies - you may know these makers from their later products as Tokina, Kiron, Komine, Sankor, Cosina, Sun, etc., there were about 12-15 perhaps.

A picture would help, possibly, to identify the maker. There are often clues in the design and details of the lens.