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    Re: DIY Borosilicate Focusing Screens

    Yes. As you could see, the glass from the vendor was not rectangular. In cutting out the screens, I had a couple odd size pieces left over and used one.

    As boro is harder than regular glass, I...
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    Re: DIY Borosilicate Focusing Screens

    In case there are a few who don’t know of the advantages of borosilicate:
    1. It makes for a brighter screen as it transmits more light than standard glass
    2. It is harder so will not break as...
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    DIY Borosilicate Focusing Screens

    This is not so much of a step-by-step ‘how to’ as a recount of information and material sources I used to allow me to grind focusing screens for my newly purchased 4”x5” Chamonix 45H-1 and the...
  4. Re: An imagined LED enlarger light source for 4x5 -- NEW INFO FOR TECHNICIANS

    Drew,
    I agree those would be helpful. But my D5 compatible head, which I built using much of the designs that Alan shared with me (link in my previous post), I used only wood and Masonite (along...
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    Re: Ordering Maxwell screens

    I do not have a Maxwell so maybe I am off base here but...
    It always amuses and frustrates me when people complain about an outstanding ‘artist’ not responding as they think he ‘should’. The Pope...
  6. Re: An imagined LED enlarger light source for 4x5 -- NEW INFO FOR TECHNICIANS

    Hope I’m not too late to the party but..
    It sounds like this should be straight forward but it is not. A fellow ( modern enlarger led heads ) was trying to make a go of something similar to what you...
  7. Re: DIY Lens Board for Zone VI, type II 5x7 enlarger

    Final product painted flat black next to original Zone VI board. Ready to mount lens and put on enlarger.

    201918
  8. DIY Lens Board for Zone VI, type II 5x7 enlarger

    I recently moved to 5x7 after I got a Zone VI, Type II 5x7 enlarger (with the help of my friend Tom). But, it only came with 2 lens boards. Since I have negatives in 35mm, 6x7, 4x5 and, now 5x7; and...
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    Re: Is Steve Hopf still active?

    Hope he's well and off on some personal adventure. Or retired on some tropical island without the internet on the profits from all of those focusing screens we all bought from him over the years. :)...
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    Re: Is Steve Hopf still active?

    Make LF Great Again - Dump the Fresnels!

    A just kidding but having low resistance to avoiding comments on such an easy mark, Jim
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    Re: Is Steve Hopf still active?

    So, that's why they make the whitening type of toothpaste?

    With apologies, Jim
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    Re: Is Steve Hopf still active?

    Drew,
    Too bad we don't have a medieval scholar like Saint Thomas Aquinas or a more recent St. Ansel Adams around to ask. I'm sure the posited answers would be fascinating! - and the discussion...
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    Re: Is Steve Hopf still active?

    Hey Drew,
    Any idea of about when and in what forum? I did a search of "Camera & Accessories" but didn't come up with anything.
    Best, Jim
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    Re: Is Steve Hopf still active?

    Bob,
    I know you believe that fresnels are the best thing since sliced bread and you are trying to be helpful to a poor schmuck who simply will not see the light (pun intended).

    I don't know how...
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    Re: Is Steve Hopf still active?

    Guys,
    I wasn't trying to start an argument as to how many angels can dance on the head of a pin. I was just trying to find Steve.

    Bob, you have made it abundantly clear that you like fresnels....
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    Re: Is Steve Hopf still active?

    Bob,
    As I should have said more specifically, I have trouble getting sharp focus and the fresnel lines distract. I know that many others don't have this problem, I'm happy for them, but I do. Drew...
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    Re: Is Steve Hopf still active?

    Keith,
    I think the Chamonix 5x7 has a beautiful screen too, but it is just gg and not fresnel (at least the 5x7 back which came with my 45H-1 wasn't). There was a fresnel on the 45H-1 4x5 back, and...
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    Re: Is Steve Hopf still active?

    On fresnel's...
    I understand that they work for some folks but I have had several and none have worked for me. I must admit that I've never had a Maxwell but, given the price, I've never felt I...
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    Re: Is Steve Hopf still active?

    Rory,
    Thanks for the reply. I had already found this email address and used it with a message on 2/2 but still had heard no reply. Also, I had not seen a reference on a recent purchase from him....
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    Is Steve Hopf still active?

    Hi All,
    Have a borosilicate gg Steve made for my Ebony 4x5 - it's the bee's knees and now I'm spoiled. Recently I bought a 5x7 Chamonix that I'd like one for. Have been trying to contact him but not...
  21. Re: An inexpensive LED enlarger head alternative

    Drew, Just for clarity, I only print B&W. With no experience in color, I was not suggesting it would work there even with the improvements in LED technology. Above my pay grade.
    Best, Jim
  22. Re: An inexpensive LED enlarger head alternative

    Yes, When I was buying LED strips for my enlarger head project (https://www.largeformatphotography.info/forum/showthread.php?139056-LED-Diffusion-Lighthead-for-Omega-D5), which I'm still happily...
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    Re: Another UV Light Box (16x20)

    I guess I had the wrong understanding about the sun vs box re: speed. But, frankly, the factors you just mentioned would have had me go to the box anyway. Not to mention the fact I can print in the...
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    Re: Another UV Light Box (16x20)

    Drew,
    I had seen builds using BL as well as BLB. I had not remembered hearing/reading that one was better by any substantive amount. I think I said that my decision was based on finding a deal on...
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    Re: Another UV Light Box (16x20)

    Hi Drew, Sorry for the delay but was 'out of the evil influence of the internet' last week.

    In answer to your questions:

    1. 'No' on Albumen, but from what I've read, I believe that Robert is...
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    Re: Another UV Light Box (16x20)

    sheel,
    I just used a standard household wall rocker switch for each circuit and had not had any problems with the Fulham's I used. As far as the ballasts were concerned, any brand should be OK once...
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    Re: Another UV Light Box (16x20)

    Good point, Randy, as I think I'd be more apt to forget to turn the fan off after I'm done rather than to forget to turn it on when I'm starting to print. But you'd either have to mount a timer...
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    Re: Another UV Light Box (16x20)

    Correct, jp, but since many alt printing process chemistries are sensitive to heat as well as UV, I decided to have a way to keep the fan on after lights went out since the lamps continue to put out...
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    Re: Another UV Light Box (16x20)

    Looks good to me (although my lawyer would suggest a more cautious response to avoid liability if you blow yourself up, I'll ignore that).

    As you noted, miswiring the ballast to the lamps is the...
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    Re: Another UV Light Box (16x20)

    Jeff, I didn't understand this unless you meant that it would be possible to turn on the lamps but not the fan with 2 switches. Technically, I agree but felt that low risk. I turn fan on first and...
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    Re: Another UV Light Box (16x20)

    I did find having separate switches was helpful. Could leave fan (I only used one) on after turning off lamps to dissipate heat faster after long exposures.
    Best, Jim
  32. Re: Anyone hear of a new Ilford paper possibility?

    Pere,
    I think you are on to the answer (as was your original post to the thread). I went back to talk more with the friend that started this and he now thinks that the person in England he talked to...
  33. Re: Anyone hear of a new Ilford paper possibility?

    Drew & Pere,
    While I have been interested in your discussion, I'm wondering if your posts could be directed a little more on-topic? I was looking to find out about a possible new Ilford paper and...
  34. Anyone hear of a new Ilford paper possibility?

    Hi All,
    A friend of mine just emailed me that:
    "Just heard from a friend of mine from southern England, claiming that Ilford is working on and contemplating bringing out another B/W high resolution...
  35. Re: manual for the enlarger timer: Creative Phototronics Touch Timer CP900

    Oh, and in case you didn’t see it, this timer also supports a foot switch. On all of mine, it plugs into the top of the display/keypad part of the unit (not the power supply / plug connector). 2...
  36. Re: manual for the enlarger timer: Creative Phototronics Touch Timer CP900

    Frank, you are correct about the buyout. However, although the timer was originally setup for the card reader to make repetitive "Processing" procedures easier to reproduce, you do not need to use...
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    Re: LED Diffusion Lighthead for Omega D5

    Hi ic-racer,
    Actually, I'm not sure that I stated this but my enlarger is officially an Omega ProLab II. After the failure of Omega to capture a significant market with the automated D5500, they...
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    Re: LED Diffusion Lighthead for Omega D5

    I had used the Chromega D diffusion head before I went to the Modern Enlarger Lamps (MEL) condenser LED head. It did the job and infinitely adjustable, dial-a-contrast was very nice.

    However, the...
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    Re: LED Diffusion Lighthead for Omega D5

    Pieter,
    No, I see no flash of any kind either during or after timer operation with my setup. The timer I am using is an old Ilford DT600 (previously a Creative Phototronics Touch Timer). (Note: The...
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    Re: LED Diffusion Lighthead for Omega D5

    Thanks, Randy.
    Best, Jim
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