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  1. Sticky: Re: Where to look for information on LF (mainly) lenses

    Glad it’s useful to you!
  2. Sticky: Re: Where to look for information on LF (mainly) lenses

    All the info about Schneider Lenses should be in here too: https://lf.animaux.de/lenses
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    Re: Newest model Compur 3, T Trouble

    Sure thing. But I was expecting T and B modes to work the same way no matter what model or brand. Apparently that’s not the case.
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    Re: Newest model Compur 3, T Trouble

    That’s what I thought and like I said it’s exactly the same problem. Mine is a silver one with T only.

    To add to the confusion, my older Synchro Compur does Click-Open-Click-Close in B-Mode and...
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    Re: Newest model Compur 3, T Trouble

    Sorry, it’s Compur 3, it was late yesterday.
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    Re: Show us your home made camera...

    Yes, forgot to mention it. It’s a cheap reading aid simpy taped to the ground glass.
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    Re: Newest model Compur 3, T Trouble

    Thanks, will probably do that too. Had another look inside just now and can imagine what the levers SHOULD do in T-mode, but have not yet grasped what part is not doing its part. I wish there was a...
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    Re: Newest model Compur 3, T Trouble

    @Corran were you able to resolve the issue? I have the exact same problem.
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    Re: Show us your home made camera...

    A simple 8×10 Back for a Sinar F, mounted to a (slightly flimsy) aux standard. Including bellows, which are slightly stiff but working. The ground glass is rather ground acryllic, and the spring back...
  10. Sticky: Re: Where to look for information on LF (mainly) lenses

    Such a list can never be complete. However a lot of stuff has been added in recent months —> https://lf.animaux.de

    I’m happy to add stuff if you provide a source.

    Alex
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    Re: ANSI Standard for 14x17 holder seems odd

    This is simply because A is defined as A min, e. g. minimum length for A. In practise you could make your holder as long as you want to.

    For reference: http://lf.animaux.de/filmholders
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    Re: Paper negatives

    Thanks! There’s no way around testing, I guess. Good to have a starting point though.
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    Re: Paper negatives

    To answer myself … for my bathroom it’s about 2 seconds with a diffuse 5W LED bulb in roughly 2,3m height.
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    Re: Paper negatives

    Thanks for sharing! Could you say how far away from the contact your bathroom light was, and how much Watt the buld has? This would make it easier to get a good starting point for my own contacts :)
  15. Sticky: Re: Where to look for information on LF (mainly) lenses

    I’ve tried to bundle the lens info on largeformatphotography.info into a searchable and filterable list and joined that together with my representation of the ANI film holder specs here:
    ...
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    Re: Paper negatives

    https://farm1.staticflickr.com/869/40875976504_6a253f558b_z.jpg

    Schnutenbaum in der Steubenstraße by Alexander Rutz, on Flickr

    Schneider Symmar-S 360mm/6.8
    @ƒ8 1/4s
    18x24cm Ilford MG IV...
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    Re: ANSI Standard for 14x17 holder seems odd

    BTW, what Mr. Hoover calls »Exposure Width« is the opening of the holder with an open darkslide. That is slightly larger than the film itself.
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    Re: ANSI Film Holder Details

    There is some discussion about 14×17 holders in this thread, with some actual holder builders taking part.

    Considering the allowed tolerances for »T« with 14×17 holder add up to slightly more than...
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    Re: ANSI Standard for 14x17 holder seems odd

    I’ve only just found this after getting it from somewhere else. I tried to do a modern representation of the data.
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    Re: ANSI Film Holder Details

    On my Fidelity and Lisco-Holders M2=1.57mm seems to be correct.
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    Re: ANSI Film Holder Details

    Thanks, I’m happy if this helps people building interesting things! It was fun to do this too.

    Also, thanks for pointing out the errors. I think I fixed the translocated and incorrect values. Will...
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    Re: ANSI Film Holder Details

    I did a few paper negatives, I wish I had the time to do a lot of them :·)

    I just checked the thickness of Ilford MG IV paper. It’s 0.009" = 0,23mm
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    Re: ANSI Film Holder Details

    Thanks for your input guys! Will look into it and try to correct the errors later on.
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    Re: ANSI Film Holder Details

    Cheers! Hope it helps! My holders can all take print paper too. I wonder how thick that is.

    The main a-ha from the original spec was that most values are min- or max-values.
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    Re: ANSI Film Holder Details

    A friend had a copy.
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    Re: ANSI Film Holder Details

    Unsatisfied with Edward A. Hoover’s extract of the specifications, I created a more complete table of the measurements with my own illustrations. It’s in original metric units though.

    Now...
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    Re: ANSI Film Holder Details

    Aparently the ANSI-spec has been transfered to the PITA, with all its infamous consequences.
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    Re: ANSI Film Holder Details

    I’d think the variance in the thickness of the film should be well within the tolerances. I have no data though.

    Still I’d love to see the original ANSI spec, especially to see if there are more...
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    Re: ANSI Film Holder Details

    Thanks for the insight!



    Me too!
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    Re: ANSI Film Holder Details

    I’m happy to doublecheck all the values and update my table if you are OK to share the ANSI file.
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    Re: ANSI Film Holder Details

    It looks like it’s not on the ANSI site anymore. I’ve uploded an updated version from a table by a guy named Hoover here.
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    Re: Paper negatives

    175666

    @flickr

    Sinar F w/ DIY 8×10 Back
    Fujinon NW 210mm/5.6
    Ilford MG IV 18×24*cm
    Dev. in Caffenol-CM
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    Re: Paper negatives

    It’s not really hard if you use the basis of a Norma or F-standard. The only tricky part is to get the distance to the ground glass right. Just E-Mail me if you have any questions.
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    Re: Paper negatives

    Tack så mycket, Jimi! I have a few pictures of building it in a flickr album.
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    Re: Paper negatives

    Two test images. (I really need a grid on my ground glass :)

    https://farm5.staticflickr.com/4710/39354868374_d422ff4422_z_d.jpg

    Frauenplan Weimar, Germany
    ...
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    Re: Fixed focus 4x5 camera

    I just built this one »spacer« specifically for the 75mm focussed at infinity. The writing on top states the hyperfocal distances for the snadard aperture numbers:

    ƒ5,6 —> 6.1m
    ƒ8 —> 4.9m
    etc.
    ...
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    Re: Fixed focus 4x5 camera

    Here’s my take on the idea. A cardboard tube between two coupling frames. I’m still trying to get a Norma aux standard for the back too. It is really light and a joy to handle.

    174255
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    Re: Paper negatives

    174085

    Yard of the Hotel Elephant, Weimar, Germany.

    Sinar F-based fixed focus camera
    Fujinon SWD 75/5.6@5.6
    Ilford MGIV Paper Negative 9×12cm
    preflashed (possibly too short)
    Caffenol-CM
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    Re: lens in compound 4 shutter

    @Dhuiting do you have a link showing the lens? From a quick google-search it looks more like a barrel lens that can not be mounted on a central shutter. I might be wrong though.
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    Re: lens in compound 4 shutter

    I know, I know :·) but sometimes …
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