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    Re: questions about caltar ii-n lenses

    thanks! I'm not thinking of using it on 4x5, this would be for an 8x10 kit I'm putting together. I just found it odd that it was being sold for 4x5 when it covers so much more, so wanted to make sure...
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    questions about caltar ii-n lenses

    Hey everyone,

    I recently came across a Caltar II-N 360mm f/6.8 lens, which looks like it might be a good deal. From what I've heard Caltars are re branded lenses, and their quality depends on the...
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    Re: Commercial Ektar 12" coverage?

    alright, thank you! Do any of you know of a reliable database for specs of these types of lenses? Different sites I find seem to list different specs, so it would be nice to have a good source to...
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    Re: Commercial Ektar 12" coverage?

    hmm, I'm confused now. If it has only 53 degrees of coverage wide open, if my math is correct, then it only has an 11.97" image circle at 6.3, which is different than the 380mm listed by that site,...
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    Re: Commercial Ektar 12" coverage?

    Thanks for that source! If it is correct, the lens will work for me.
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    Commercial Ektar 12" coverage?

    Hello,

    I'm putting together my first 8x10 kit, and am looking for a lens. The Commercial Ektar 12" is one I've seen available, and has been recommended to me. However, I read somewhere (can't...
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    Re: Anyone know this manufacturer's logo?

    I don't know anything about it either, but could the outer "c" and "o" stand for company? I would try searching for a maker with the initials O and K
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    Re: Goerz Apochromat Artar 12in f/9 coverage

    Yup, I’ll continue my search for a lens, it’s just too bad this one didn’t work, it was only $100:p
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    Re: Goerz Apochromat Artar 12in f/9 coverage

    Darn, I do landscapes, so I need infinity. Guess the search continues
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    Goerz Apochromat Artar 12in f/9 coverage

    Hey guys,

    As some of you know, I’ve been putting together an 8x10 kit, and I just came across this Goerz 12in lens at a local camera store, I think it works with 8x10, but can anyone confirm?...
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    Re: Martha's Vineyard photos

    Thanks! the files are huge, which is why I didn't upload the full res here, but when I tried to link from flickr it kept giving error messages, any idea why that would be?
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    Re: Building an enlarger chassis

    which PA fits better? Both have been used in the past, but if if I remember correctly, in the past 14.5 was more common, but now 20 is more common. Although it is easier to find 20 PA racks, the ones...
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    Re: Building an enlarger chassis

    The point about it being properly balanced isn't something I had thought of, but you may be right, I'll do some testing. Are you sure the rack is 20 degree pressure angle? I was assuming it was 14.5...
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    Re: cost expectations for 8x10 restoration

    I'm sure they're great, but how much do they cost?
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    Re: cost expectations for 8x10 restoration

    I'm not sure if it was on this forum that I saw it mentioned, or a different one, but it is cloth that is designed to protect light sensitive equipment when using lasers for scientific purposes. It's...
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    Re: cost expectations for 8x10 restoration

    Bellows are expensive, but I've found some tutorials, and I think making them wouldn't be too hard. The most difficult thing from what I've heard is finding a good fabric that blocks light, but I...
  17. Thread: Hello!

    by Ethan
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    Hello!

    I've been hanging around in the equipment forums the past few days, but figured I should formally introduce myself here. My name is Ethan, as you probably gathered, and I am a student who only...
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    Re: cost expectations for 8x10 restoration

    cool, I'll wait around then I guess:)
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    cost expectations for 8x10 restoration

    I'm trying to get into 8x10, as I've mentioned in other threads. I recently acquired an 8x10 enlarger for free, which was nice, though it needs some work. However, the enlarger isn't very useful...
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    Re: Building an enlarger chassis

    Here is my design for a wooden enlarger stand, The rack for moving the head up and down would be aluminum plate with a steel gear rack bolted to it, and the column would be 6 feet tall. In the images...
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    Re: Building an enlarger chassis

    I'm from Massachusetts, so shipping from Minnesota would probably make that inconvenient :)
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    Re: Building an enlarger chassis

    I have most of the pieces, but not the large rack to move the head up and down on, which I will probably need to fabricate. I also use McMaster Carr, but the only gear rack they have in the specs...
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    Re: Building an enlarger chassis

    I’ll post my sketches later today. For raising and lowering the head, I found sources for a 1/4x4” aluminum plate as well as a gear rack matching the pinion on the enlarger. I would bolt those...
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    Re: Building an enlarger chassis

    Thanks for the info. I was mostly worried about vibrations, but I think I’ll probably build it and see how it does. If it ends up not working, I won’t have lost much and will have learned something
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    Building an enlarger chassis

    I touched on this project in my previous thread, but I figured that this question is different enough from that to warrant a new thread. My new enlarger, an Elwood 8x10, did not come with the stand...
  26. Re: Setting up a darkroom inside a shipping container

    Is this something you think you will build? I'm currently working on a similar concept, since I'm a student with no idea where I want to settle down, building a permanent darkroom seems like a waste...
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    Re: Help needed with aristo 1212 cold light

    Thank you for all the sources! I think I have my work cut out for me reading them
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    Re: Help needed with aristo 1212 cold light

    thanks for the sources, since you've worked with LEDs as a light source, can you shed any light on how much light is needed for 8x10 enlargements? My calculations based on scaling up a 6x6cm enlarger...
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    Re: Help needed with aristo 1212 cold light

    I was imagining it just like house construction, but yea, thinking about it, drywall wouldn't fair to well in a trailer :p
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    Re: Help needed with aristo 1212 cold light

    That light you linked to says its only 5500 lumens, is yours the same, and is it enough? I calculated based on scaling up the brightness on a 6x6cm enlarger that a 12x12in light source should output...
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    Re: Help needed with aristo 1212 cold light

    My plan (we'll see if it comes to fruition at all) is to frame the inside walls of a trailer and put dry wall in, both so it can be insulated, and to give stronger mounting points. Also might use...
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    Re: Martha's Vineyard photos

    192101
    192102
    (feel free to critique)
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    Martha's Vineyard photos

    Took a trip to Martha's Vineyard a few weeks ago, here are a few images from that trip, taken on my 4x5 with horseman 6x12 roll back and velvia 50. Velvia wasn't the best film for this, as most of my...
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    Re: Help needed with aristo 1212 cold light

    nice collection of enlargers there, are you an Elwood fan, or are they just what you happen to have? Mine was originally wall mounted, and hopefully its previous owner can find the rack. I've found...
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    Re: Help needed with aristo 1212 cold light

    192095
    192096
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    Re: Help needed with aristo 1212 cold light

    For anyone interested, I gave the enlarger a fresh coat of paint yesterday, and already it is looking much better than it did. I know this hurts its antique value, but the paint was chipping away,...
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    Re: Help needed with aristo 1212 cold light

    So I'm hearing that LED's wont work for color, would they still work for B/W? I'm doing this on a student's budget, so I'm not wanting to spend a whole lot of $$ on it, and from what I've seen...
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    Re: Help needed with aristo 1212 cold light

    true, but because I'm missing the power source, fluorescent would be a project as well, and LEDs are less complicated and more future proof
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    Re: Help needed with aristo 1212 cold light

    Also, if I go with RGB LEDs for color printing as well, what would you guys recommend for mixing channels? are there any controllers for this currently on the market, or would I just solder a...
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    Re: Help needed with aristo 1212 cold light

    Thanks for the replies everyone. I heard back from the company that acquired aristo, and apparently the “7452” on my lamp means it is an older one with a blue color, which would require a color...
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