Search:

Type: Posts; User: Neal Chaves; Keyword(s):

Page 1 of 31 1 2 3 4

Search: Search took 0.08 seconds; generated 30 minute(s) ago.

  1. Re: Mortensen's Glycin Variant Film Developer

    If it's from Mortensen, it must be good. He realized that the biggest secret is that there is no secret. He open-sourced his techniques and never acted the Guru, selling seekers their own personal...
  2. Replies
    38
    Views
    1,006

    Re: Camera for Africa trip

    That's an excellent choice. I have used them for years. I had the early Model IIIs and they developed cracks in the plastic bodies. I replaced them with the all metal Model IIs and have been very...
  3. Replies
    5
    Views
    678

    Re: Toyo ROBOS and bigger formats

    I have been a Robos user for years and like them very much. The story is that Sinar sued for patent infringement after the first run of 4X5 cameras and the 5X7 and 8X10 components were never...
  4. Replies
    27
    Views
    9,762

    Re: Toyo metal field 4 3/4 x 6 1/2

    Here is my Toyo Field 4 3/4x6 1/2. I use Speed and Crown Graphics and Pacemaker adapter boards on Toyo Views and Calumet C2. I modified the back to accept a late production Toyo Focus panel and...
  5. Replies
    17
    Views
    814

    Re: pin hole checking

    Just call Dynatect and ask customer service to talk to someone about camera bellows. They may have a CAD file for that bellows.
  6. Re: Help me make a decision... Sinar Norma or Toyo.

    There are no lighter options I know of that fold compactly, have full front movements, rear focus and a front standard robust enough to support large heavy lenses. Adapters are readily available to...
  7. Replies
    17
    Views
    814

    Re: pin hole checking

    The best replacement bellows I have found are the U.S.-made all synthetic and waterproof products from Dynatect or Nabel (you will pay more for the same thing).
  8. Replies
    24
    Views
    1,904

    Re: cameras as enlarger

    Reading over the posts, I see many members have converted cameras to enlargers. Some may have realized, as I did, that having an enlarger that can focus from the negative stage rather than, or as...
  9. Re: I need some advice on choosing my first two large format lenses.

    I worked for a long time with just two 8X10 lenses, a 250mm f6.7 Fujinon W in Copal and a 355mm f9 Schneider G-Claron, and made many prints enlarging back through both of them.
  10. Replies
    24
    Views
    1,904

    Re: cameras as enlarger

    When a 4X5 Beseler M type enlarger is converted to 8X10, it requires spacer to bring the head, and the lens, further out over the baseboard so larger prints can be made. This might be required on a...
  11. Replies
    24
    Views
    1,904

    Re: cameras as enlarger

    My first 8X10 enlarger was a monorail camera a B&J. I lived in a converted textile mill building that had a floor to ceiling structural steel rod about 1.25" in diameter and accurately perpendicular...
  12. Replies
    1
    Views
    827

    Re: Big Shots Andy Warhol

    Old press photographers knew how to set up the rangefinder Graphics for one, accurately framed with the open frame finder, head and shoulders or tight horizontal for two.

    245715
  13. Replies
    79
    Views
    5,200

    Re: Actual zone system

    I just ran the tests described below. This time on HP5+ 120 film developed in Ilfotech HC 1:31 at 68*. The film was exposed on a bright clear day. I only tested down to 1/125 sec. , hand held in a...
  14. Re: Any Real Reason To Favor One Particular Lens Line?

    Fast, wide, sharp...Pick any two.
  15. Replies
    13
    Views
    890

    Re: 11x14 image. What frame size?

    When I mount and frame exhibition prints, I use the Golden Mean ratio to determine the width of the borders. Bottom border is 1.6 times the width of the top and sides. I determine these dimensions...
  16. Replies
    12
    Views
    1,778

    Re: 4x5 Graflex Super D + 18/21cm heliars

    I found this image I made of model Tonya with the 360mm 5.6 TeleXenar on the 4X5 Super D. Lens was wide open in a barrel mount. I see from the negative that I used a Graphmatic Magazine. I had...
  17. Replies
    33
    Views
    1,814

    Re: test strip methods

    The only way I have found that an incremental test strip can provide accurate information is with a continuous exposure, the card being moved every set increment with an audible timer.
    No other...
  18. Replies
    14
    Views
    1,576

    Re: Sources for tiny screws?

    Surplus Shed has bags of tiny optical screws, most from US-made Wollensak and other optics.

    https://www.surplusshed.com/pages/item/M2916.html
  19. Replies
    12
    Views
    1,363

    Re: Recent Drymount Experience

    I'll second that MT5 is the best if you can get it. Buy it cheap and stack it deep. If the print is to be dry mounted, only MT5 can suffice. "Archival" tissues cannot match it's holding ability.
  20. Replies
    17
    Views
    1,359

    Re: HC110 Question

    I second that. Ilfotec HC is a clone of the old HC110. Use the same times and dilutions you used with that on the old TXPProf 320 but now with Ilforfd HP5+ and you are good to go.
  21. Re: Help: Toyo 810G mounting block tripod thread bigger than 3/8"

    That is not a Toyo rail clamp pictured for Toyo 810 G or GII. The OEM factory clamp for the Toyo 8X10 monorails is only slightly more robust than the 4X5 G rail clamp. Definitely l
    not suitable for...
  22. Re: John Sanderson: NATIONAL CHARACTER Exhibition in NYC Nov 17-Dec 13, 2023

    Masterful work! You have been an inspiration to all on this forum.
  23. Re: Kodak Chemicals coming back under Photo Systems inc.

    Just buy Ilfotec HC and use the same times and dilutions as for the original HC110. Not only will your results be the same, but you will gain some insight into how the branding game is played.
  24. Replies
    40
    Views
    15,323

    Re: What Do I Charge for a Portrait Session?

    In 1974, Damien Waring explained all this to me in Honolulu when I began to assist him and his partner Lurline. He said "When they ask what I will do for $100, I tell them I'll polish my lens." It...
  25. This new data poisoning tool lets artists fight back against generative AI

    https://www.technologyreview.com/2023/10/23/1082189/data-poisoning-artists-fight-generative-ai

    The Struggle of Life goes on. For every move there is a counter, for every hold an escape.
  26. Re: Using Rosco sheets in place of Wratten gel filters?

    I use Rosco yellow and magenta gels cut to 11.75"X11.75" to adjust contrast of VC papers in my 8X10 Beseler cold light enlarger with W45 tube. 15 Yellow is my normal. I place the filter on top of...
  27. Re: Ibn Al-Haytham: Father of Modern Optics

    There may have been two two people using that same name, the first, who made the optical discoveries, and then another, possibly a friend or associate, who constructed the telescope which opened new...
  28. Ibn Al-Haytham: Father of Modern Optics

    https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6074172/

    Just learned about this amazing scientist in an article from Lomography.
    ...
  29. Re: Technika V Questions Re Lens Calibration

    Now seeing your photo. Someone must have put that lens into a recessed board so that it would fold up in a Tecknika. This causes all kinds of difficulties you don't need. Mount on a flat board and...
  30. Re: Technika V Questions Re Lens Calibration

    A 135mm normal focus lens does not require a recessed board. Mount on a flat Technika board with off-center hole. That said, you still have to set the stops and match the cam to the lens. I have...
  31. Replies
    1
    Views
    453

    Re: Copal 0 contact time?

    I looked into these matters when I produced a device I called the Ghostmaster, the patent now in public domain. We speak now of Copal O, because other shutters can be quite different.
    ...
  32. Replies
    50
    Views
    2,626

    Re: I need an extra wide lens

    Swing and tilt of the back place no demand on covering power and can be used effectively in architecture and interiors.
  33. Replies
    38
    Views
    2,174

    Re: Vignetting 4x5 300mm

    This is the lensboard you need. I recently bought one from him and it is excellent. I am going to make a monocular viewer out of it with the right lens.
    ...
  34. Re: Beseler 45V-XL 3 Lens Turret Wobble - Anyone Have Experience Fixing?

    Tin Can, Great minds think alike. Talking Rodagons, I found the 240 to be my most-used enlarging lens, but some printers just have to have the 300. The 300 will mount right up to the same flange if...
  35. Replies
    22
    Views
    11,127

    Re: 8x10" SLR Graflex

    I remember at the show in Boston one time in the 1980s a dealer had an 8X10 contact print of the Wright Flyer in the air. He claimed it was made hand-held, which I doubted at the time but perhaps he...
  36. Re: Sinar P2 camera: size of front standard and bellows?

    The Sinar P2 front standard is simply raised to the 5X7 or 8X10 position. The bellows attachment at that point is the same as for 4X5. All bellows will be tapered (except for bag).
  37. Replies
    12
    Views
    1,778

    Re: 4x5 Graflex Super D + 18/21cm heliars

    You are no doubt correct about the mirror hitting the rear element. I never used that 250 or 360 except at medium and close up distances so they might have hit the mirror if focused further away....
  38. Replies
    12
    Views
    1,778

    Re: 4x5 Graflex Super D + 18/21cm heliars

    I made a lot of pleasing work on a 4X5 Super D. I converted to Graflok back and liked the results on 4X5 with the factory 190 Ektar auto diaphragm lens. But I also had a 4X5 view camera with 250...
  39. Re: Convert speed graflex to 1/1000 universal shutter with 3D printing

    Excellent modification and craftsmanship.
  40. Re: Saunders 16x20 easel overhauling question.

    That plastic strip is Teflon tape put on at the factory to reduce friction. Unless torn or damaged, leave it alone.
Results 1 to 40 of 1225
Page 1 of 31 1 2 3 4