Search:

Type: Posts; User: John Schneider; Keyword(s):

Page 1 of 60 1 2 3 4

Search: Search took 0.04 seconds.

  1. Re: Need help identifying a couple of Linhof compendium lens hoods + parts

    Thank you Bob! I knew you'd know everything about these!
  2. Need help identifying a couple of Linhof compendium lens hoods + parts

    I found a box of several Linhof compendiums that I bought for some forgotten project. Can someone help identify which cameras they go to please?

    The first is the type that I used for my...
  3. Is the nominal shutter speed listed on the Calument tester correct?

    I finally, *finally* found my Calumet shutter speed tester. I tested some lenses and noticed that the shutter speed decimal equivalents on the label are wrong. It begins okay (1=1.000, 1/2=0.500,...
  4. Any helical focusing mounts made for a Copal 3?

    As the title says -- I'm like to mount my 150 Xenotar on a helical for use with my Cambo Wide. Buying something off the shelf would be much much easier...
  5. Re: I need help regarding an older style non-tilting ARCA Swiss function carrier

    It's a well-known secret that the older pre-F rails were typically but not always a tad wider than the F rails. Some pre-F function carriers work fine with F rails and vice versa, but some pre-F...
  6. Re: Goerz serial numbers (post-breakup) question re: 1 million serial numbers

    Here is the lens, front and back. It looks to be a barrel lens that was mounted into a shutter (based on the difficulty, the workmanship, and the included caps, I would guess Steve Grimes). So if...
  7. Goerz serial numbers (post-breakup) question re: 1 million serial numbers

    This is both a general question and one about a particular lens. And if I've misstated something, please, please correct it for future reference.

    A. First, it's well know than when Goerz was a...
  8. Re: Coverage info wanted for the Nikon ED T telephotos....

    Go to http://www.bhphotovideo.com/find/FreeCatalog.jsp, download the Professional Photo Sourcebook, and look at the LF lens specs
  9. Re: lightweight wide-ish 5x7 lens recommendations

    133 Cooke Series VIIb is wonderful and will front-mount in a Copal 1. Hard to find and harder to find coated, but worth searching for.
  10. Re: Question about lens board for Technikardan 45

    KEH is your best bet. I always prefer Linhof boards; new or used they fit the best. I have had very good luck also with name-brand copies (Nikon, Toyo, Wista). Anything by other than these four...
  11. Re: How does Linhof manage to stay in business?

    Rolls-Royce is a massive (>25,000 workers) company that has no problems staying in business selling aircraft and marine jet engines, stationary power turbines, etc. Cars were never more than a...
  12. Replies
    20
    Views
    5,875

    Re: Uv glue for lens repair

    I have had good experience using Summers Optical products (type J-91 adhesive in particular) for jobs up to and including a 19" Dagor: https://www.optical-cement.com/cements/chart.html

    Like Kevin...
  13. Re: How to screw in tripod socket bushing without splitting the wood?

    I use the EZ-Lock variety sold by McMaster-Carr (the ones made for metal). I tap the wood with a sharp tap of the right size, c'sink the hole, blow out the dust, and epoxy the insert in place. The...
  14. Replies
    10
    Views
    2,644

    Re: DIY self-adhesive aperture scales

    Thanks! That was the post I remembered -- has it been 7 years?!?
  15. Replies
    10
    Views
    2,644

    DIY self-adhesive aperture scales

    I've bought a few lenses which have had homemade but very nice aperture scales, with a clear plastic on top of a piece of thick paper (with the printing) with self-adhesive backing. How do I make...
  16. Replies
    10
    Views
    2,382

    Re: Custom machining/threading

    Isn't that the truth!
  17. Replies
    10
    Views
    2,382

    Re: Custom machining/threading

    Yes it's just for the rear cell. The gentlemen already turned the adapter for the front cell before his health deteriorated:(
  18. Replies
    10
    Views
    2,382

    Re: Custom machining/threading

    That's a nice hobby to have. Back when I was a grad student and could sneak out of the lab and down to the machine shop and make custom camera parts (mostly odd-format backs for Arca and Toho). But...
  19. Replies
    10
    Views
    2,382

    Custom machining/threading

    Does anyone have a good source for a little bit of lathework? I used to use a wonderful retired machinist that Kevin Crisp told me about, but he has health issues so isn't taking any work.

    I have...
  20. Replies
    36
    Views
    11,637

    Re: Is a 3D Printed LF camera Possible?

    [QUOTE=Drew Bedo;1172575]knobs and catches may be duplicated, gears and tracks too I'd think./QUOTE]

    Knobs (screw machine work), catches (stampings), gears/racks (casting/gear hobbing/horizontal...
  21. Re: 75 Zeiss Biogon mil. surplus barrel lens - sketch for mounting into Copal 1 shutt

    More details. Left pic: the front element is on the left, rear barrel to the right, with the adapter for the front barrel in between.
    ..................Center pic: detail of the rear barrel after...
  22. Re: 75 Zeiss Biogon mil. surplus barrel lens - sketch for mounting into Copal 1 shutt

    Very nice to see! I used to have two of these lenses (from KS-87B aerial cameras; mine were by Pacific Optical) but could never figure out how to easily mount it into a shutter.



    Regarding the...
  23. 75 Zeiss Biogon mil. surplus barrel lens - sketch for mounting into Copal 1 shutter

    I had a military-surplus 75mm Zeiss Biogon barrel lens that I wanted to mount into a shutter. I borrowed a converted lens and made the attached sketches in case anybody wants to do this. After...
  24. Replies
    100
    Views
    48,739

    Re: The Computar lens and ULF coverage.

    last page:
  25. Replies
    100
    Views
    48,739

    Re: The Computar lens and ULF coverage.

    I just got this Computar brochure and thought it might be good to post it here. Interestingly, it only gives the half-field angle, rather than image circle, but the usable image circle has been...
  26. Replies
    12
    Views
    3,119

    Re: 199/4.5 Dagor-S design type?

    I guess I had it in my head that it was a double Gauss, but you could be right as well. The mechanical design is such that you can only pull out the lens elements by unscrewing the trim ring around...
  27. Re: Ebony lens box modified with sliding lid

    If you have a table saw (which I don't), then probably yes, although the foam does give a bit of vibration and sound damping so the lensboards don't rattle around.
  28. Ebony lens box modified with sliding lid

    Here are my modifications to an Ebony box (see http://www.badgergraphic.com/opencart/index.php?route=product/product&path=2_17_117&product_id=3490). I bought it used from a Forum member (two boxes...
  29. Replies
    12
    Views
    3,119

    Re: 199/4.5 Dagor-S design type?

    fff
  30. Replies
    12
    Views
    3,119

    Re: 199/4.5 Dagor-S design type?

    I remember someone on eBay a few years back selling both an SL and a SV Dagor. I remember one of them being 50mm f.l., but I don't remember which one.

    I do have a 199mm f4.5 Dagor-S, and I can...
  31. Replies
    5
    Views
    1,232

    Re: GRAPHIC KOWA 610mm LENS CONSTRUCTION?

    Counting reflections is really more of a dynamic process. Use a point source (like an LED), close the shutter or unscrew the elements so that you're looking at only one element, and then slowly tilt...
  32. Re: Holder hinge tape: options(and pro's/cons)

    Jim from Mpex recommended ripstop repair tape; that's all I've used and have had no problems.
  33. Replies
    11
    Views
    2,858

    Re: Modern Copal shutter repair sucsess!

    Try some black paint on the chip; the result might be better than you expect (I have an even bigger chip in the same place on my 19" Dagor, and the results seem fine to me).
  34. Replies
    8
    Views
    2,122

    Re: linhof finders

    These are wonderful finders.

    On the old black anodized dual 4x5/5x7 finders, the 5x7 scale went from 121 - 500mm as Bob noted.

    Linhof never (correct me if I'm wrong, Bob) made a "brown" finder....
  35. Replies
    4
    Views
    976

    Re: Wide angle bellow Canham

    Keith Canham is exceptionally helpful. If you send him an email, I'm sure he would send you a picture.
  36. Re: Cambo TWR 54 - 4x5 Twin Lens Reflex (like Gowlandflex) Question...

    Cambo was all into modularity and reusing parts, so it's quite possible that the grip came from or was adapted from another Cambo model.
  37. Re: Schneider 240mm F5.6/420 F12 in a prontor professional 3 ?

    Very late 240 convertible Symmars (as I recall) also came in Copal 3 shutters into which the factory had installed adapters to fit the slightly smaller lens cell threads. I know this because I...
  38. Replies
    27
    Views
    3,399

    Re: Trust BGN at KEH?

    In my experience some BGN stuff is truly bargain (which I usually return), while other BGN stuff (probably >70%) is so conservatively graded that I'm genuinely surprised (and happy) that KEH would...
  39. Re: help/pictures needed for restoring Wolly Velostigmat Series II w/ soft focus ring

    I don't see any way to "fix" the lens as-is. I could expand the part of the soft focus ring that lies outside the main barrel (even that would be difficult, owing to the thickness of the rim and the...
  40. Re: help/pictures needed for restoring Wolly Velostigmat Series II w/ soft focus ring

    Thank you for the helpful pictures. Now that I see the construction I think the cleanest way is to chuck the element in a lathe and cut off the affected area using a cutoff tool, and then re-create...
Results 1 to 40 of 2376
Page 1 of 60 1 2 3 4