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  1. Replies
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    Re: Portrait lens options for5x7

    You may want to look for 'Emil Busch Bis-Telar ser II f/7' lovely look to them wide open, a few are listed on ebay.
    Wollensak 'Tele-Raptar' 15"/5.6 works well on 5x7.
    If you remove the rear...
  2. Re: How to Wash Lens Cloth Chamois without Leftover Residue

    if it's paper it's like Tyvek, purely synthetic, no wood pulp or debris. Seriously tough, can't tear it, need to cut it with scissors, store the roll and pieces in a zip-lok bag.
  3. Re: How to Wash Lens Cloth Chamois without Leftover Residue

    rarely clean lenses, NEVER reuse the cloth, just use new microfiber paper towels

    Carrand 45076 Microfuse Towels
  4. Re: Please measure your 11x14 Deardorff 'T' distance

    Randy, it sounds like there should be a Fresnel lens in there, just about the right spacing for one.
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    Re: Home done CLA Compur Questions

    "So on something like the escapement assembly or other parts, I just get the steel lid off a 5lb can of ink, ..."

    before you remove the escapement unit mark the location on the shutter body, it...
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    Re: Home done CLA Compur Questions

    HT Finley,

    nice link, handy. The factory service manuals should be available as reprints on ebay, just do some hunting to find one.
    Mine is still lost in the shuffle from a major move but I do...
  7. Re: Routing a precision 'ledge' for GG in mahogany, which bit type?

    "Which brings up biscuits, can biscuits be used on 1/2" stock at the 45 degree joint?"

    NO, biscuits are dried and compressed, made to swell when wetted with glue, likely break your joints or crack...
  8. Re: Routing a precision 'ledge' for GG in mahogany, which bit type?

    "To obviate that, most will cut the ends at 45 degree angles."

    Yes, and the finger joints / tenons?
  9. Re: Routing a precision 'ledge' for GG in mahogany, which bit type?

    Randy,

    "I may rout the ledge in the 4 pieces first and then build the GG holder."

    backwards, the ledge will extent to the ends, light leaks, dust collector, weakness, alignment problems while...
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    Re: Heliar or what?

    F/6.5, brass barrel, iris at center = Collinear III
    cell spacing and iris placement all wrong for heliar, won't work.
    remove the rear cell and compare to front cell, heliar will have very different...
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    Re: lens for 8x10 wet plate

    "I should mention that I would be shooting almost entirely portraits and not shooting at infinity - does this work in my favour as far as coverage goes ?"

    Yes it will, more extension = more...
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    Re: lens for 8x10 wet plate

    "A 360/4.5 Schneider Xenar in barrel." +1
    420/4.5 Rodenstock Ysar

    How large is your lens board?
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    Re: Lens for DIY afghan box camera

    "Paul , you recommend a 100 - 150mm lens ? The image circle of such a lens should still cover my paper you think ? "

    Yes, you're shooting at lifesize, 1 - 1, twice the focus distance so twice the...
  14. Replies
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    Re: Lens for DIY afghan box camera

    Hi there, if you want to make same size positive/negative you would need 4X the focal length + the size of the lens:
    210mm X4 + 75mm = 915mm from the negative holder to the positive holder.
    I...
  15. Re: info on 8x10 Bausch & Lomb Tessar Series Ic f4.5 Large Format Lens

    "does anyone know if the flange fitting it would be metric or imperial threading?"

    neither, they would be US sizes and TPI, you need a B&L flange.

    B&L used their own US sizes and TPI that...
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    Re: Focusing issues with certain lens

    "Edit: I found a little plastic rim in my scraps that has the right dimensions and is exactly 3mm thick. Should I slip it into the holder so the plane moves forward or should I slip it into the...
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    Re: Focusing issues with certain lens

    "Now I have this nice old petzval portrait lens, ... it shows a front focus of about 3 centimetres on the plate/negative."

    Petzval lenses have a curved field of focus both inside and outside the...
  18. Re: Dealing with reflection between lens and filter?

    " You could cut a ring of black felt to place on the front ring of the lens, that should eliminate all reflections. "

    so would a black paper ring, easier to cut and use.
  19. Replies
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    Re: Some Soft Focus Lens Sales Information

    I'm confused, I thought the S.A. Doublet only had rear glass.
  20. Replies
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    Re: 11x14 versus 8x10

    "I plan to shoot largely portraits, often in environmental settings e.g. factory/restaurant workers etc."

    with 4x5 or 5x7 the image will usually be enlarged in the print, with 11x14 it's enlarged...
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    Re: Material for darkslides

    Tristan, be careful, depending on the shape of your pattern the darkslide can trap & tear the light trap material and ruin the holder, been there done that.
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    Re: Wollensak serial numbers again

    Hi Dan,

    all of the numeric # would be too early, the alpha/numeric # with 'G' I have seen were all badged Graflex not Wollensak. I think they changed to alpha/numeric around 1949-50. Would need to...
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    Re: Wollensak serial numbers again

    "Helpful ideas, anyone?"

    Yep, 'G' is for Graflex badged lenses, noticed that a while ago.
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    Re: Some Soft Focus Lens Sales Information

    " Jon, you read it on the internet, so it must be true. Now we know that "early" Velo's are more desirable than late Velo's."

    Just like early(w/hood), late(wo/hood) and modern(Dynar) Heliars
    ...
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    Re: Aero Ektar 24" f/6

    "Paul : In the lens I'll get, the two elements are apart, so it will be possible to test them on my 8x10 Bender."

    the rear elements are intended to be cemented together, if they are air-spaced you...
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    Re: Aero Ektar 24" f/6

    "This was shot with a 24" f/6 B&L Aero Tessar (virtually the same lens). The negative is not tack sharp, but sharp enough for portraits."

    I have the same lens and noticed that then took it apart...
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    Re: Convert normal lenses to soft focus?

    "I am interested primarily in 5X7" format."

    IF you can find a B&L 14x17 IIb tessar the rear cell is approx. 270mm f/3.5 and has a nice SF look to it.
    I'm preparing for a coast to coast move right...
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    Re: Convert normal lenses to soft focus?

    Sandy, which size film are you looking to play with?
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    Re: Maximum sharpness

    "In all cases that you present, the total depth of field is 60 feet. That doesn't seem like a very effective way of increasing total depth of field. "

    Actually it's decreasing the need for DOF,...
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    Re: Maximum sharpness

    "My question is: could I have done anything else to maximize sharpness?"

    The only other option is to move farther back and use a longer lens to reframe the photo.
    Moving farther back would change...
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    Re: looking lens for 12x12 inch frame

    I'll be posting some big dogs over the weekend. Keep a look out, should find something in the closet to fit.
  32. Re: What type of hardwood do you recommend?

    "Could white ash be recommended? Anybody used it?"

    Yes and yes, as long as it's quarter sawn and straight grained, properly seasoned helps. It is stronger and tougher than white oak, about the...
  33. Re: looking for a lens that will cover 30 x 40 inches

    Goerz listed their 35" Artar to cover 36" x 40" at 1 - 1, longer lenses cover larger plates. Have fun finding one.

    cameraeccentric.com
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    Re: Wollensak Vitax No.5 coverage

    "That's odd, Paul. I wonder if your Vitax was situated farther forward, making it closer to the subject? (They do mount with the optical center farther in front of the lensboard than other designs,...
  35. Re: Wollensak Verito Diffused Focus 18 inch f4 question

    "Next question becomes: was this from factory or are we seeing the result of modifications/adaptations from barrel to shutter etc ..."

    Mine appears to be factory built if it's a help.
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    Re: Wollensak Vitax No.5 coverage

    "There is a second front cell to replace the usual front cell for the 16" that turns it into a 20-inch f/5 Number 7 Vitax. Good luck finding one..."

    Oops! Both of mine (No3 #3945 & No5 #4879)...
  37. Re: Wollensak Verito Diffused Focus 18 inch f4 question

    Mine is in a #5 Studio shutter (no serial number), it's 9 1/4 inches end to end.
  38. Re: Help with a broken Wollensak Rapax lens

    "Can you give me a ballpark estimate as to how much that would run me?"

    More than it is worth, you will need all new blades or a new shutter, neither have been made for 40 years.
    Look for a newer...
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    Re: Need Help Identifying Lens

    "Would there be any other explanation why this was setup like this? "

    Yes, petzvals are convertible, the front doublet makes a nice portrait meniscus. Your's would be approx. 15" f/5, soft focus...
  40. Re: how to make lensboard to last a few weeks

    "or could I make a board out of really stiff carboard?
    I haven't got routing tools, but I am quite handy with an exacto knife."

    "Masonite works better than cardboard. "

    You could go to the...
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