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  1. Re: SK Componon S 150/5.6 with 72mm filter thread

    The catalog says that the 150/5.6 Componon S takes M52x0.75 filters. The 210/5.6 takes M72x0.75. Perhaps the seller is confused about what he has.
  2. Re: Should I get a center filter for my 65mm Nikon-SW f/4 & 90mm Sinaron-W f/6.8?

    What a silly. You have the UV filter, you have the CF and you have the lenses. Why don't you just ask them whether they'll work well enough together.

    Y'know, the front of the CF's diameter is 86...
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    Re: Help with Super Topcor 5,6/120?

    It could also be on a board for a 4x5 Horseman. 160 mm claimed coverage, though.

    OP, if you want a not too expensive 120 mm +/- lens that covers 4x5, consider a 125/5.6 Fujinon-W.
  4. Thread: 20x24 lenses

    by Dan Fromm
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    Re: 20x24 lenses

    Algo, as a newcomer here you may not be aware of this site's resources. The first post in this...
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    Re: Carl Zeiss Jena Anastigmat 600mm f9

    Something later, the CZJ trade name Anastigmat was replaced by Protar before the Tessar was introduced. You don't have the OP's lens. Thorley's link in post #2 above was to a modern (post-WW II)...
  6. Thread: 20x24 lenses

    by Dan Fromm
    Replies
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    10,322

    Re: 20x24 lenses

    It is a process lens, won't cover 16x20 at infinity, let alone 20x24. Tessars aren't particularly symmetrical but it seems that Apo-Tessars -- mine are all Taylor Hobson tessar type process lenses,...
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    Re: Upgrading a lens shutter

    Louie, no couplers are required. You may have been thinking of swapping cells from a Graflex 1000 shutter -- the lens was supplied in that shutter too -- into a regular normal #1.

    It is a...
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    Re: A simple and practical 4x5 snapshot camera

    I wrote ebay.com, not ebay.fr
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    Re: A simple and practical 4x5 snapshot camera

    ebay.com
  10. Re: why are there no "modern" super fast LF lenses?

    Re weights, see post #5 above. None of the lenses mentioned in that post will go into shutter.
  11. Re: Any tips on how to repair lenses with Balsam Separation?

    Try soaking in acetone.
  12. Re: Any tips on how to repair lenses with Balsam Separation?

    What are the lenses? I ask because modern lenses don't use Canada balsam. The adhesives that replaced it aren't softened by heat.
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    Re: 210mm F5.6 Lens For 8x10

    Sal, early in the discussion I asked the OP if he absolutely had to have f/5.6. He replied that he could live with f/6.8.
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    Re: Advice for Handheld 4x5 and Flash Please..

    Thanks for the news. He's a good guy.
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    Re: Advice for Handheld 4x5 and Flash Please..

    FWIW, years ago when I was setting up I asked my Minolta Flash Meter (the original one) about my Vivitar 283s. Both are one stop under spec at full power, on spec from half power down on the VP-1. ...
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    Re: Advice for Handheld 4x5 and Flash Please..

    The 283 accepts the VP-1 variable power accessory. Full power down to 1/64. I have a couple, they work very well.
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    Re: Advice for Handheld 4x5 and Flash Please..

    Go to graflex.org and see what they say about Graflex' potato masher flashes.

    There used to be -- I hope there still is -- a street photographer (Luis Mendes, I think, could be wrong) who used 4x5...
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    Re: Info on Goerz Apo Artar 4-7/16 inch

    Hmm. I see that you're a long time lurker. Even so, you may not be aware of all of this site's resources. One that's hidden in a not particularly obvious place is "the list," a set of links to...
  19. Re: Disasterous Consequences

    Which filter did you put on it? I ask because there's not too bad image in the corners.

    A picture of the lens on its board would be helpful. Side views, so we can read the ID etc. on the front...
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    Re: Rodenstock Aperture Scales

    Ask skgrimes.com
  21. Re: Should I get a center filter for my 65mm Nikon-SW f/4 & 90mm Sinaron-W f/6.8?

    Thanks for the kind word. About using a stronger CF than recommended, try it and see whether you like the effect.

    FWIW, I bought that #III because I wasn't comfortable with the idea of using my...
  22. Re: Should I get a center filter for my 65mm Nikon-SW f/4 & 90mm Sinaron-W f/6.8?

    You didn't get it at all. The CF does nothing to, by, for, against or with mechanical vignetting. It is denser in the center than at the edge, transmits relatively less light to the center of the...
  23. Re: Should I get a center filter for my 65mm Nikon-SW f/4 & 90mm Sinaron-W f/6.8?

    Hmm. I have a Schneider CF III, paid <$200 for it delivered. No scratches. Finding it took a while. You have to be patient.

    If I were you, I'd buy one of Igor's filters with the right of...
  24. Re: Should I get a center filter for my 65mm Nikon-SW f/4 & 90mm Sinaron-W f/6.8?

    Alan, take out a lens. Any lens. Open its diaphragm completely. Hold the lens at arms length. Look through it. Straight through is. Rotate it slowly and watch what happens to the exit pupil. ...
  25. Re: Should I get a center filter for my 65mm Nikon-SW f/4 & 90mm Sinaron-W f/6.8?

    Which lens do you use it on?

    Stopping down has no effect on cos^4. It does reduce mechanical vignetting, which is why Rodenstock and Schneider recommend that w/a lenses be stopped down at least...
  26. Re: Should I get a center filter for my 65mm Nikon-SW f/4 & 90mm Sinaron-W f/6.8?

    PMFJI. Alan, movements increase the angle between the lens' axis and the edges and corners of the gate. The larger the angle, the worse the falloff. This is true for all lenses.

    Center filters...
  27. Re: Should I get a center filter for my 65mm Nikon-SW f/4 & 90mm Sinaron-W f/6.8?

    They are the same. cos^4(theta) works the same for nearly all lenses. For a very few lenses the exponent is somewhat less than 4, but the effect is still the same, just not quite as large.
  28. Re: Should I get a center filter for my 65mm Nikon-SW f/4 & 90mm Sinaron-W f/6.8?

    igorcamera.com
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    Re: McKeowen's and all those cameras.

    Red, the photographic goods industry was global almost from the beginning. The process was invented in France, improved in the UK and adopted world wide. There were camera manufacturers -- in the...
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    Re: McKeowen's and all those cameras.

    If you want to read it, write it. I award you one Mustafa for dreaming up a huge job and wishing out loud that someone would do it for you.
  31. Re: The story of Yamasaki Optics photographic lens lab

    Revisit post #1 in this discussion.
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    Re: Bag Type Bellows Sewing Pattern?

    Hmm. Nearly seven years late. Better late than never, I guess.

    FWIW, my wife's sewing machine did better than well enough.
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    Re: Where to find a [scarce view camera]?

    igorcamera.com

    The for sale section (occasions) at http://www.galerie-photo.info/forumgp/. You don't have to sign up to browse.

    https://buyee.jp/yahoo/auction?lang=en buyee is a window into...
  34. Re: Should I get a center filter for my 65mm Nikon-SW f/4 & 90mm Sinaron-W f/6.8?

    Hmm. Bargains can sometimes be found. I have four Rodenstock and Schneider CFs, the most I've paid has been $225 plus postage. But bargains don't come along very often. Just get one of Igor's...
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    Re: Radioactive Lens Treatment

    Interesting. My 20W BLB unbranded (not marked on the base, box long gone) fluorescent took much, much longer to clear three TTH Apo-Tessars (1 Apotal, 1 Cooke Copying Lens, 1 Copying Lens) and one...
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    Re: Carl Zeiss Jena Tessar 150mm f4.5

    Per P-H Pont's chronology, between 1905 and 1910.
  37. Re: Should I get a center filter for my 65mm Nikon-SW f/4 & 90mm Sinaron-W f/6.8?

    Hmm. I wrote the article referred to in post #3 above.

    OP, there's no fixed rule about which focal lengths absolutely need a CF and which can be used without one. The choice depends on the...
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    Re: Rail size for a CALUMET 4X5 CC401?

    If the bellows were as long as the rail, movements would be impossible with full extension. Bellows are usually longer than the rail.
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    Re: Carl Zeiss Jena Tessar 150mm f4.5

    The lens in the photo is marked "15 CM", not 150 mm. Pre-WW II.
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    Re: Rail size for a CALUMET 4X5 CC401?

    Um, er, ah, why do you believe that? Calumet's Spring 1970 catalog says:
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