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  1. Replies
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    Re: New Autofocus 4x5"

    Interesting project, the technical challenges are surmountable with today's electronics, I would love to see it in action. Of course it sounds completely unsuited to my style of shooting, but...
  2. Re: Information on early Zeiss lens - Millimetre system

    Are there different focal lengths marked on the rim of the front and rear elements? Could be part of a casket set, with the aperture in millimetres so you can look up in the tables the F-number,...
  3. Re: Using a Neutral Density Filter on a Rear Lens Element

    So problem #1 could be addressed by focusing with a UV filter in place, so long as the glass is the same type and thickness.

    As for problem #2, spherical aberration from the rays of light...
  4. Re: References on the meanings of colored lens dots

    Huh. I thought all those dots or triangles meant they had been rejected by quality control, so I've been painting over them before re-selling any of my lenses.
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    Re: 210 Xenar f/6.1 sharpness?

    Condition matters more than lens design or brand. If your Xenar isn't sharp at f16-22, there's something wrong with it, so get yourself another lens. May have been dropped, might be missing spacers...
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    Re: Lens element sources and specs?

    The more valuable and desirable lenses are not the Petzvals from the mid-1800s, unless it's for historical reasons, it's the experiments. The Koritskas, the Spencer Port-Lands, the Plasticcas, and...
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    Re: Post Here OLD LF Camera Fails

    My first experience with a 'vintage' lf camera: I bought a Deardorff at the local flea market, missing parts, needed a bit of work, only had the 4x5 reducing back. This was back when you could...
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    Re: Post Here OLD LF Camera Fails

    Bought a 5x7 Graflex SLR, pre-RB, at a camera show, looked almost mint, had the original lensboard and 8" Cooke lens. As the show is ending, you just grab and pay as you're packing. Got home, took...
  9. Re: Determining coverage/image circle of simple lenses

    You're obviously not looking for coverage or image circle if you're shooting with meniscus lenses, because those are defined by acceptable resolution and lack of aberations within a certain field. ...
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    Re: Help needed on Nettel Sonnet

    Maybe just unscrew the front element to see if the body catch at the top of the box is working. It looks to be there on the body, but I can't see the matching piece on the door.
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    Re: Wide angle lenses for 8x10

    I'm still waiting to see someone using a Hill's Sky Camera. But also very pleased to see that ultrawide 8x10 in action.
  12. Thread: The Road

    by Jody_S
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    Re: The Road

    It was a wonderful surprise, this morning. To wake up to these images. Thank you.
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    Re: spot meter review: bewi zoom spot

    Crap, I no longer have my meter so I couldn't check. Yes, 8 does ring a bell if the original battery was 12V. 2 groups of 4?

    I sold the meter a couple of years ago, but I remember I did make...
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    Re: spot meter review: bewi zoom spot

    I used 4 in mine and it fit, IIRC. But in other gear, notably the Yashica Electro 35 camera, I cut a small length of aluminum dowel and taped that with my LR44s to achieve the correct length and...
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    Re: spot meter review: bewi zoom spot

    You should be using 4, I believe. 4x 1.5V = 6V.
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    Re: 各位新朋友,你们好,来自中国。

    很不错的画面。 欢迎!
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    Re: Some B&W Town & City Impressions...

    This reminds me so much of the Montreal I remember from the 1970s, I had to look for the newer parking meters and then I noticed the 'Panini' sign. But it's a blast from the past for sure. These...
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    Re: Fujinon lenses - EBC coating & Shutters

    In normal use they're just as reliable? I've had similar issues with Copal and Compur shutters, I recently fixed a Shanel shutter that was jammed by a piece of a lever falling off and into the ring...
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    Re: Fujinon lenses - EBC coating & Shutters

    Functionally the Seiko shutters are just as reliable and easy to service as their comparable Copal or Compur shutters, in my experience, I've repaired 2 or 3 without issue. As for coating, the EBC...
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    Re: Gluing camera screws

    I don't know why there's a multi-page discussion here on gluing camera screws, it's pretty obvious taking cameras apart which screws needed it and which didn't, and how it was applied. Screws were...
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    Re: Compur shutter questions

    I personally don't, you would need some very expensive gear to measure that and for our purposes it's irrelevant. I would cut those threads at 28 tpi and call it a day. It will fit just fine.
  22. Re: What is a A. J. Thompson & Co Petzval lens about?

    Thanks. I didn't think it was Gasc & Charconnet because I have owned a couple and these do not look or feel like those. I didn't realize they stopped making lenses that early. I was just wondering...
  23. Re: What is a A. J. Thompson & Co Petzval lens about?

    I was lucky enough to get 1 flange with the pair, I'm going to copy it as best I can on my lathe in the spring (unheated garage). Honestly I think I would have preferred 300mm f4 than 18"/f6, though...
  24. Re: What is a A. J. Thompson & Co Petzval lens about?

    If the French lens-making industry was anything like the British camera-making industry, there were specialty shops that sold standard barrels and fittings, which would explain why so many of my...
  25. Re: What is a A. J. Thompson & Co Petzval lens about?

    The Gasc & Charconnet lens from eBay, crop of their photo:

    221810
  26. Re: What is a A. J. Thompson & Co Petzval lens about?

    Maybe I should show off the lenses to get people interested?

    221806221807221808221809

    The focusing knob, and especially the 4 screws that attach it, are 100% Darlot. The rounded heads are...
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    Re: I Wish They Would Make . . .

    Faced with similar difficulties my 'solution' for my 8x10 kit was a rolling tool box that is sturdy enough for me to sit on, and a 2nd tray-type box that attaches to the top of the 1st. The 1st has...
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    Re: Cursed image - Pyrocat-M salvage

    I bought one of these for trimming and pruning around the yard... surprisingly useful. Very portable. I have yet to bring it on one of my swamp tours.

    4 Inch Chainsaw Rechargeable
  29. Re: Film Developing Rant and CineStill DF96 Monobath - Am I Lazy?

    Currently sitting on about 100 sheets of undeveloped film, I can relate.
  30. Re: What is a A. J. Thompson & Co Petzval lens about?

    From: Looking for info on petzval lens


    So on the strength of these threads, I recently purchased 2 rather large (approx. 18" f6) A.T. Thomson & Co petzvals from the famous auction site. They...
  31. Re: What do I need to do to use a R.O.&C. Co Telephoto Cycle Poco D ?

    No. If you look at what happens when you insert a film holder, it goes between the glass and the camera, the glass is not in the path of the photograph. It is there only to help you compose and...
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    Re: Zone VI Type II power switch

    If the power switch is that red square thing in the top right. that should be a standard part available through many online electronics places, and the repair shouldn't be complicated. Best to...
  33. Re: The Problem with Modern Lenses.. transfered to those new to view camera image mak

    We have been conditioned over our entire lifetimes now by the gear manufacturers to always be looking for that magic bullet, that if we just fork over another $1-5K or whatever for this latest,...
  34. Re: The Problem with Modern Lenses.. transfered to those new to view camera image mak

    Well my passport photo certainly is. So was my latest MRI. I prefer thinking of photography as storytelling though. Sometimes that story involves reproducing a view of something with the greatest...
  35. Re: The Problem with Modern Lenses.. transfered to those new to view camera image mak

    I'm not trying to reproduce reality. I'm trying to show how I see the world. If all I wanted was the above, I would have given up LF years ago, because digital now has a clear advantage.
  36. Re: The Problem with Modern Lenses.. transfered to those new to view camera image mak

    Do you happen to have a twin brother?


    https://www.youtube.com/watch?v=OXp1CQA8YDw&t=70s&ab_channel=RodneyNorman
  37. Re: The Problem with Modern Lenses.. transfered to those new to view camera image mak

    This man has found the secret of life.
  38. Re: The Problem with Modern Lenses.. transfered to those new to view camera image mak

    Step 1- Buy a dSLR or mirrorless state-of-the-art 40+ MP camera and lens for $6-12K
    Step 2- Buy a $24 ring light off Amazon
    Step 3- Using camera on full auto, take selfie using your remote control...
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    Re: Schneider-Kreuznach Xenar 135mm f4.5

    My first Xenar 135/4.7 was sharper than the 150 Symmar-S I replaced it with, and I very much regret selling it. I've had 2 or 3 since, but I never fully tested them, and I have a couple of clones,...
  40. Thread: Protar Lenses.

    by Jody_S
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    Re: Protar Lenses.

    I wonder if the hit-and-miss quality on the TRs is because nearly all suffered from balsam failure and if the lens is clear, it's most likely because someone has re-cemented it. Usually without the...
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