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  1. Replies
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    Re: Wollensak 15" f/5.6 Raptar Telephoto

    Randy, thanks for the information. I had to take a look, unscrewed the lens, and put the calipers to it. You're right about the thread diameter, I got a reading of about 61.41mm. If this is a #4,...
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    Re: Wollensak 15" f/5.6 Raptar Telephoto

    If this is also the case with Alphax, the top speed of 1/50 suggests that my shutter is a #5.

    The shutter prices in that article seem extremely high even in today's market.
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    15,380

    Re: Wollensak 15" f/5.6 Raptar Telephoto

    Randy, you are right that there is some darkening in the corners. The first image below was focused at infinity and it shows a little darkening in the upper right corner.
    ...
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    15,380

    Re: Wollensak 15" f/5.6 Raptar Telephoto

    Randy, I have one on my 8x10 Arkay Orbit (aka Calumet C-1). The lens covers the format with a slight bit of play to make minor adjustments. This lens is outstandingly sharp. I don't understand why so...
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