Search:

Type: Posts; User: Larry Gebhardt; Keyword(s):

Page 1 of 29 1 2 3 4

Search: Search took 0.03 seconds; generated 59 minute(s) ago.

  1. Replies
    39
    Views
    1,649

    Re: LED Light Panel for 11x14 Enlarger?

    Interesting. I can definitely see the advantage of being able to see the projected image when using a high grade for a negative. I was considering using red LEDs to address that issue in my next...
  2. Replies
    39
    Views
    1,649

    Re: LED Light Panel for 11x14 Enlarger?

    Can you point me to the details of the pink LEDs you are using? They sound interesting and not something I would have thought of.
  3. Replies
    39
    Views
    1,649

    Re: LED Light Panel for 11x14 Enlarger?

    I built a 5x7 with 12 green and 12 royal blue high power LEDs. It could easily be scaled up to 11x14 with 4x the number of LEDs. 40x60 should be doable with reasonable exposure times.
  4. Replies
    19
    Views
    1,433

    Re: Old Eyes NEED Double Space

    There is a style selector in the vBulletin code, you can see it at the bottom of the forum pages. Unfortunately it seems the set available are just different colors. I wonder if there's a more...
  5. Re: stearman press sp8x10 light leak???

    The second image sure looks like parts of the tank in the shadows. Do you have all three baffles in the opening placed in the correct order?
  6. Thread: yes

    by Larry Gebhardt
    Replies
    1
    Views
    1,528

    Re: yes

    Nice!
  7. Re: Getting ready to do E6 processing with a Jobo expert drum...

    I have not measured it, but next time I process some film I'll try. My ATL 2000 has 25, 50, and 75 RPM options. My perception is they are probably close to that, with the 50 RPM feeling twice as fast...
  8. Re: Getting ready to do E6 processing with a Jobo expert drum...

    I use 50 rpm with expert drums for color, per Jobo’s recommendation.

    Regarding opening the tanks with air, if you fill the tank to the top it creates a very low drama lift instead of pop with the...
  9. Re: Durst Enlarger Laborator 184 Looong Exposures

    If you can focus the lenses it shouldn’t matter which lens boards they are mounted to. The purpose of the recessed lens boards is to hold the lens and position it close enough to the film for the...
  10. Re: Durst Enlarger Laborator 184 Looong Exposures

    Does the bulb say the wattage on it? You could measure the current draw with a multimeter that has a clamp on current capability. It should be around 8.3Amps if the bulb really is 1000W. The meter...
  11. Replies
    5
    Views
    859

    Re: Magenta cast on slide film

    Is the film fresh? Which chemicals are you using. Over exposed areas should end up clear. Check the instructions for ow to deal with casts. The Tetenal kits have some guidance but it may not be the...
  12. Re: Lens Service\Flush\Cleaning - Conley 5x7 Folding Camera

    If it's like the one I have the shutter is screwed into a threaded flange that's screwed to the chromed plate. Just unscrew the shutter from the front (counterclockwise). The front and back cells...
  13. Re: Feedback - Photobackpacker Cascade Film Holder Cases

    Thanks for digging that out!
  14. Re: Making a photo look and feel like an oil painting - possible?

    Or like https://www.saulleiterfoundation.org/painted-photos
  15. Re: Feedback - Photobackpacker Cascade Film Holder Cases

    Bruce, can you share what the white write on material is that you use for the pocket identification area?
  16. Re: Feedback - Photobackpacker Cascade Film Holder Cases

    I have both 4x5 and 5x7 and I have no issues with them. They are holding up well and I am really glad I have them.

    Maybe a larger area of the white label material for a few notes could be useful.
  17. Replies
    39
    Views
    3,175

    Re: Nikon 300mm F9 M

    At full extension you should add a 1/2 stop (really .44) extra time.
  18. Re: Shutter speed tester, marketed under the name "ALVANDI"

    That’s a real shame that he took the intellectual property you developed and marketed it as his own creation. I guess one lesson to be learned here is to not give out the code but rather a compiled...
  19. Re: "1930s How Photographs Were Transmitted by Wire: Spot News (1937)"

    Very interesting. It's the precursor to the drum scanner.
  20. Re: Challenges with Highlights in Scanning Process?

    Try a scan as a positive with no adjustments. Use 16 bit RGB. Then edit in Affinity/Photoshop. The file should have room on either end of the histogram. My guess is your issues are in the scanner...
  21. Replies
    28
    Views
    3,660

    Re: Jobo Development and Drums

    Do you just swap out the developer part way through for fresh? Are the times the same that way?
  22. Replies
    28
    Views
    3,660

    Re: Jobo Development and Drums

    For 4x5 in an expert drum you normally have plenty of room for developer, assuming your machine can handle the weight. For example the 3010 will process 10 sheets, which is equivalent to 2.5 rolls of...
  23. Replies
    28
    Views
    3,660

    Re: Jobo Development and Drums

    I can’t see the benefit for sheet film. I believe the idea is you get smaller grain with less development. However you lose film speed and the ability to print with an enlarger. You also are...
  24. Replies
    28
    Views
    3,660

    Re: Jobo Development and Drums

    It’s been a while since I ran any sheets with the 2509 reels, but I remember the film came out fine. But I prefer the expert drums for ease of loading and the ability to handle larger than 4x5 sizes....
  25. Replies
    25
    Views
    3,855

    Re: Use of color head for VC printing

    Have you tried fresh Ilford below the lens contrast filters? Give them a try if you can. That should show you whether you are having an issue with the head or something else like the paper or your...
  26. Re: Ground Fault Circuit Interrupter Outlet questions

    Gaffers tape works well to cover that sort of LED. Sometime you need a large piece since the light glows through the plastic housing of the device. But even a faint glow doesn't seem to fog film if...
  27. Replies
    16
    Views
    2,425

    Re: Automatic Water Temperature Regulator

    I also have an Intellifaucet and am very happy with it. I also bought a second used one that I have yet to setup for my Jobo. My only failure has been the power supply (wall wart) died. I used the...
  28. Replies
    15
    Views
    3,087

    Re: LF lenses with cat's eye bokeh?

    Maybe a barrel lens with a cats eye shaped Waterhouse stop would also give the look.
  29. Replies
    15
    Views
    3,087

    Re: LF lenses with cat's eye bokeh?

    Maybe find a tele lens designed for 4x5 since they should have less coverage and vignette on 5x7.
  30. Replies
    28
    Views
    4,584

    Re: Graflex Replacement GG/Fresnel Lens

    I prefer glass unless I’m using a wide angle lens. The closer the lens the steeper the light hits the ground glass and the dimmer it appears. A fresnel will bend it back so it’s pointed more towards...
  31. Re: 3M Rapid Access Negative - Orthochromatic

    Dilute paper developer like dektol 1:50 might work will for masks. With the current ortho lith films the results are very similar to what I got with POTA for masking, and it’s much easier to use.
  32. Replies
    19
    Views
    2,342

    Re: Film production and Darkroom equipment

    There are non photo specific light sources that can completely replace the old Durst opal bulbs. In fact LEDs work better for black and white in my experience, and I hope to get a color capable LED...
  33. Re: Light meters - Which of these?: Reveni Labs, Reflxlab, Keks-KM02

    Same, but the simple dials on the Pentax digital spot meter are really useful to me for “seeing” scale of the exposure.
  34. Replies
    25
    Views
    3,855

    Re: Use of color head for VC printing

    I don’t see the utility in using both for speed control since the speed is only ever matched at one tone and that isn’t at a point that works for my way of printing. So I either make new test strips...
  35. Re: Light meters - Which of these?: Reveni Labs, Reflxlab, Keks-KM02

    Sadly that is true even if you wanted to try it again.

    My take on any of these meters is that I would not want to use them even with a hand held camera. I have not had a high success rate with...
  36. Re: Is Pyrocat HD a waist of time if you only have access to multigrade papers?

    The stain is roughly proportional to the density of the developed silver in the film. The stain is brown and probably blocks blue and green light slightly differently, which would affect contrast on...
  37. Re: Where can I find "regular" LED lights with a CRI 95>?

    https://www.waveformlighting.com/ I've only used their LED strips and a few of the A19 filament bulbs. I've been pretty happy with both.
  38. Replies
    5
    Views
    584

    Re: Ethol LPD dilutions and results

    To me that's slightly cool tone, but my guess is it's more of an emotional description and not something we'll all agree on. Mix in various subjects and it's almost impossible for me to describe a...
  39. Replies
    5
    Views
    584

    Re: Ethol LPD dilutions and results

    The tone of photo papers can be controlled by the concentration of the developer. Some developer ingredients affect the tone more than others, and the paper's emulsion formulation also affects tone....
  40. Replies
    5
    Views
    937

    Re: AZO Post Cards

    I have some azo from about the same time frame. It took a lot of benzotriazole to keep the fog down, but I was able to get a surprisingly decent image. I don't recall that it was "A Quick Printing...
Results 1 to 40 of 1140
Page 1 of 29 1 2 3 4