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  1. Replies
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    Re: Lens for color

    Pedro, in my experience color rendition problems with color reversal film are due to exposure problems and to variations in the light's color, not to lenses' transmission. Over-exposure desaturates...
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    Re: Lenses and their "personality"..

    Alan and Emil, pardon me for jumping in.

    Alan, old lenses turn up on ebay.com and ebay.co.uk. If you read French or German respectively, and are willing to risk international transactions you can...
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    Re: Friedrich Muchen enlarging lenses...

    If the VM is correct -- it isn't always right -- the trade name Coronar was used for triplets (f/6.8), 4/4 double Gauss (f/6.3) and tessar (f/4.5) types. Axinons (f/3.5 and f/4.5) were also tessar...
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    Re: Cambo 45NX Assembly

    Cambo was there first: https://static.cambo.com/Files/SC2_Manual.pdf
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    Re: of Ground Glass, Goethe and Grandagons

    Well, you don't have to get a modern wasp-waisted 75. My 75 is an f/14 Perigraphe VIa. It covers 105 degrees. Short Perigraphe VIas are in barrels that can fairly easily be stuffed into the front...
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    Re: of Ground Glass, Goethe and Grandagons

    CB, please enlighten my ignorance. Does your Horseman have a Graflok/international or a spring back?

    I ask because I use a 35/4.5 Apo-Grandagon and a 58/5.6 Grandagon on my 2x3 Century Graphic,...
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    Re: Fujinon-W 210mm f/5.6 Writing on Front

    David, the vignetting is most evident in the upper left corner, hard to see in the other three. That's why I suspected movements.
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    Re: High-Speed Sync for Speed Graphic

    There are large Packards, you could mount one in front of the lens. Is 1/25 too slow given ambient lighting?

    Re too slow given ambient, one way of dealing with that is to use slower film.
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    Re: Fujinon-W 210mm f/5.6 Writing on Front

    Lens hood collapsed or extended?

    Any shift, swing, tilt, rise or fall?
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    Re: High-Speed Sync for Speed Graphic

    Tin Can has a point.

    OP, why must you use your Speed's FPS?
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    Re: Copal 3 Shutter

    Remove either cell from the shutter. Shine a bright light at it. One light, not a cluster. Follow the link, follow the directions.
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    Re: Copal 3 Shutter

    I take it you're asking about the 355 G-Claron you mentioned in the first post in this discussion.

    Odds are against it being a dagor type. There have been extensive discussions about whether any...
  13. Re: Fresnel screen focus distance is different from ground glass

    Why do you believe that all camera manufacturers make their cameras so that the film plane is not in register with the ground glass?

    Chamonix blew it, that doesn't mean that other makers did...
  14. Re: Fresnel screen focus distance is different from ground glass

    Why do you believe this?
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    Re: Are all Goerz Double Anastigmats Dagors?

    You're welcome. If Thiele is right, that batch of 25 lenses in '37 was all CZJ made. I'd thought they were made to order for a client who had a special need. I can't imagine offering tiny w/a...
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    Re: Are all Goerz Double Anastigmats Dagors?

    David, thanks for the info. When I got my little 45/9 I asked Arne Croell about it. He told me that according to Thiele mine is one of a batch of 25 lenses made in 1937 to a design dated April 9,...
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    Re: Are all Goerz Double Anastigmats Dagors?

    David, I have a 45/9 CZJ Goerz Dagor. It is just barely usable on 2x3, I much prefer my 47/5.6 SA. The SA has more coverage and center filters are available for it.

    Some modern lenses really are...
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    Re: Are all Goerz Double Anastigmats Dagors?

    This http://www.glennview.com/note1.htm is the link you meant to post.
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    Re: Are all Goerz Double Anastigmats Dagors?

    Metrogon is a B&L trade name. Metrogons are (choose both) copies of and variations on CZJ's Topogon. Basically 4/4 double Gauss types.
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    Re: Are all Goerz Double Anastigmats Dagors?

    That's all the Hypergon is. A pair of very deep meniscii.
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    Re: Are all Goerz Double Anastigmats Dagors?

    Yeah, I've seen that. Marketing fluff until proved otherwise.
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    Re: Are all Goerz Double Anastigmats Dagors?

    More to the point, I don't see how a single Hypergon cell can be an anastigmat.
  23. Re: Anyone recognise this Goerz 120mm Double Anastigmat?

    Goerz Doppel Anastigmat Ser. III = Dagor.

    Look up Stölze aperture scale.
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    Re: 90mm 4x5 lens advice needed

    Re which CF for which lens, see http://www.galerie-photo.com/center-filters-for-large-format-lenses.html

    You may have to buy used. FWIW, I have four, all bought used. Much less expensive than...
  25. Re: Help with identifying this Japanese Camera Please.

    1867 is impossible. Why do you believe it?
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    Re: Show off your ULF camera

    Farid, the 178/2.5 Aero Ektar covers 4x5 at infinity, 8x10 at 1:1. Do you intend to use it only for closeup work, e.g., tight portraits?
  27. Re: Anyone have dates for a Berthiot Casket set?

    P-H Pont's Berthiot chronology puts 25,000 around 1900. This would probably put your lens around 1895-6.
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    Re: Nikkor M300 f9.0 not sharp

    If you want the far to be in focus, focus on the far.

    I think you are confusing motion blur due to wind with unsharpness. Look at the near plants in your second shot.

    Evaluating image quality...
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    Re: Nikkor M300 f9.0 not sharp

    What apertures did you shoot at? Where did you focus? Near, far, in between, ... ?
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    Re: Enlarging lens image circle

    It is a jes' plain Symmar. 70 degrees.
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    Re: Enlarging lens image circle

    What do you want to know? The size of the negative the lens can be used on or how large you can print with it?

    8x10, as large as you want.
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    Re: Using slide-in filters mounted on lens

    Hmm. I hang lenses in barrel in front of shutters. The largest and heaviest I do this with is a 610/9 Apo-Nikkor, which I hang on a Copal #1. 1,450 grams plus the adapter's weight. I was...
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    Re: Krauss Quatryl

    erian, I bought the Le Reve Berthiot Opticien when deciding whether to write an article on Berthiot's LF anastigmats. I found it incomplete and sometimes inaccurate, so went on to write a more...
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    Re: Indexing Outstanding Forum Threads

    Suggesting that someone (not the suggester) do the work is easy. Sorting the scarce wheat from the abundant chaff, not so easy.

    Neil and Papi, you should collaborate.
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    Re: Basic Question on Iris Scale

    Press shutters have the same tube length as comparable cock-and-shoot shutters. Their diaphragms, however, are somewhat closer to the rear of the rear tube. Some lenses whose rear cells go deep...
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    Re: Basic Question on Iris Scale

    OP, aperture scales are lens-specific. You may be able to get away with using the shutter's scale, but this isn't guaranteed.

    Here's the test:

    Open the shutter. Firing it at "T" is best.
    ...
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    Re: Indexing Outstanding Forum Threads

    Um, Neil, if you used "the list" you'd have noticed that it contains links to some interesting discussions here. The f/9 Computar discussion is one of them.

    The list also contains directions for...
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    Re: What kind of lens has aperture scale in mm?

    Ron, there is no easily copied direct link.

    I just clicked on the link in your post, got to https://books.google.com/books?id=cnkWAAAAYAAJ&dq=zeiss+unar&source=gbs_navlinks_s, clicked on the...
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    Re: Lens board too thin

    I've used paper shims between shutter and board.
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    Re: Process lens image circle nature

    There are dialyte type Apo-Nikkors, too.
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