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  1. Re: UK Lens repair and shutter installation for Cooke Aviar

    Looking at German shutters this lens would need at least a Compur 2 or Compound 3 shutter - and since these are mostly made with continental thread - you would also need a tailor made adapter; all in...
  2. Re: Objective without signature, but lens has writings at the edge

    Good point; have deleted the picture in flickr
  3. Re: Objective without signature, but lens has writings at the edge

    Many thanks Steven, hope you don't mind I've put your image 'upside down'....

    https://kpmg0072.home.xs4all.nl/Darlot/Darlot%20table.jpg

    My Darlot signed pillbox lens has also edge writings, and...
  4. Re: Objective without signature, but lens has writings at the edge

    at closer look the year reads 1864...

    The complete edge writing is as follows: 33 1/2 78 A Darlot Rue Chapon 14 a Paris 1864

    Anyone any clue on the first numerals?
  5. Re: Objective without signature, but lens has writings at the edge

    Thanks, yes it is a cemented doublet, and yes it has in its 'snout' a ring that can hold the aperture disks, but the disks are gone (as is the brass cap):-(

    These are from my Darlot pillbox lens...
  6. Objective without signature, but lens has writings at the edge

    Just got this pillbox lens in the mail; not signed from the outside but nice as addition to my little collection of landscape lenses....
    However when dismantling the lens, I found a complete...
  7. Re: 'Journey' in trying to build a 1850 sliding box camera

    As some member asked whether a filmholder / darkslide had been made for this camera, here are some pictures - I didn't make pictures of every stage in the making....

    ...just fitting the slide,...
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    Re: Deformed Wood Frame

    True, however it worked with my frame since only one 'leg' had warped, the other 3 were straight.....
    If you have to straighten the whole plate holder, you would need something like the stretchers...
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    Re: Deformed Wood Frame

    I had a whole plate Sanderson with a warped backframe. To straighten it, the frame was put in a vice (wood clamp) over a few weeks and was tightened a little bit further every two days; the warped...
  10. Re: Ottewill folding sliding box camera

    Yes Steven I considered the option of asking the Science Museum... but I wasn't aware about the Nature article....any source to acquire that article?
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    Re: ICA Niklas

    Nice find. Here's one on the ICA projector for which it was apparently made (a forerunner was the projector made by Hüttig which sported the same lens - see last pic below, it was apparently the...
  12. Re: Ottewill folding sliding box camera

    Thank you Steven, and yes I've tried to find info on the registered patents; I couldn't find any myself, but in the meantime, one of the authors of the book on 19th century British lenses was so kind...
  13. Ottewill folding sliding box camera

    Anyone of the fellow members with one in his/her collection?
    I'm looking for accurate dimensions of the different parts of the camera as presented at the Science Museum in London; its plates...
  14. Re: Are Andrew Ross engraving calligraphic styles inconsistent?

    Thank you for this useful information. Is this book an update from the Corrado book?
    Is there a link to the book or ISBN?
  15. Re: Show your 3D printed LF photography related thing

    Nice, but wouldn't it be easier to use a simple plastic clip to hold down the spiral - I have good experience with those (clips used to attach electrical hoses against a wall)
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    Re: Compur shutter questions

    Thanks David for the link (which I should have known). Let's hope then for the OP that the modern rim-set shutter has the same dimensions as the old dial set Compur.

    <edit> I have one rimset n.2...
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    Re: Compur shutter questions

    Also according to Grimes, who knew his work, the pitch is continental M0.9 - I have 5 of these (Compurs bought in Germany) and have measured them; all have the M0.9 pitch - may be the shutters made...
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    Re: Compur shutter questions

    Tube 4 and tube 5 correspond to the lenstube thread: it is 40 for tube 4 and 45 (or 44 according to your ad) for tube 5. These are not the mounting ring threads.
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    Re: C.P. Goerz Berlin D.R.P. Dogmar Age

    Have a Dogmar in barrel (with focussing mount/in German: Schnecke) with a serial that comes near yours: 556914. - was probably meant for a Goerz Anschütz camera.
    It is a f4.5 15cm lens. I didn't...
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    Re: Compur shutter questions

    I did buy mine in Germany for about 25 usd (without lens) - they needed cla , with shipping costs they might have cost about 50

    USD 40 must be long ago for one of Grimes :-) and of course without...
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    Re: Compur shutter questions

    I have five old Compur nr. 2 shutters which for the mounting ring all have thread M0.9,
    and bear the following lenses:

    Tessar f6.3 250mm
    Tessar f6.3 180mm
    Tessar f4.5 165mm
    Tessar f4.5 150mm...
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    Re: Post Photos of YOURSELF with your camera

    Great one!
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    Re: Tele-Xenar 5.5/500 on a Linhof 5x7

    Sold mine long ago..., never got tack sharp pictures out of it
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    Re: Compur shutter questions

    Most reliable German shutter made by Friedrich Deckel:

    I - B - T : Instantaneous - Bulb - Time
    M - D - Z: Moment - Dauer - Zeit

    Maximum speed depends on the size of the shutter, but for a 15cm...
  25. Re: Help me to identify this LF Camera Model

    Probably German, first decades of 20th century (truncated bellows);
    they were mostly indicated as 'Reisekamera' (travel camera); guess yours is made for 13x18 cm plates when you can find the correct...
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    Re: looking for Dalmeyer RR

    +1 Wollaston is really great for your purpose
  27. Re: Are Andrew Ross engraving calligraphic styles inconsistent?

    Many thanks.....he commented not long ago on my self made sliding box camera (https://flic.kr/p/2menMwZ); he's a really experienced craftsman (woodworker and machinist on the lathe) himself
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    Re: Dating Derogy lens

    Nice one I guess: nr. 11671 (I'm not the buyer)...
  29. Re: Help with routing a centered through slot for 20x24 front standard

    Thank you Drew for you nice write up. Makes me wonder btw if there ever have been made wooden camera's with Japanese style joints - so without the use of nails/screws/glue :-)
  30. Re: Help with routing a centered through slot for 20x24 front standard

    agree ..



    also agree...



    yes indeed, but I guess you must admit that it can't do the London style dovetails which was the main binding also for handcrafted sliding box camera's in the...
  31. Re: Help with routing a centered through slot for 20x24 front standard

    With all due respect, what a pity....much more control and fun when doing it the 1850-s way.....and hardly any noise and dust :-)
  32. Re: Help with routing a centered through slot for 20x24 front standard

    yep, to make the chiseling more easy, draw deep lines at each side of the slot with a knife (against a ruler) to get clean straight chiseled out cuts. Do the same a few times over depending on the...
  33. Re: frosted glass vs film plane difference.

    How is your film attached to the plate holder? In the old days they used glass plates with a film layer: the glass plates were as thick as the ground glass screen (i.e. the frosted glass). If you use...
  34. Re: Anyone own Dallmeyer 3A waterhouse stops? Aperture size help needed

    Please note that in most cases the originally brass WHS were chemically blackened and not painted.
  35. Re: Anyone own Dallmeyer 3A waterhouse stops? Aperture size help needed

    sorry, mine are 'only' 81,55mm wide. Oh well, perhaps another fellow member could use them.
  36. Re: Question: Rochester Optical Co 8x10 LF ... which back to use and how to use it?

    The original holder has the same (outer) dimensions as the back of the camera and is fastened by the two round buttons on top of the back (the holder below takes separate film-inserts; but there were...
  37. Re: Anyone own Dallmeyer 3A waterhouse stops? Aperture size help needed

    I have two big WHS stops laying around unused; what is the size of the WHS slit of a 3A?
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    Re: Shutter Speed Tester

    did get one long time ago - at the time it worked great; even could count till 1/500 sec - but after a few upgrades I lost the software on my I-pad and never found it again....

    at the time I even...
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    Re: Anybody recognize this camera?

    Very nice specimen: did you get it with the matching plateholders? The 12x9 holders seem to be more rare than the 10x15 and the 13x18 holders - took me several years to find two (one with ICA and one...
  40. Re: Schneider APO-Tele Xenar HM 800 f/12?

    I can only agree to it all Bernice, very well said...
    but that makes me the more curious about the ones made by mr. Unkefer himself, who showed us only his outstanding but somewhat bulky apparatus: ...
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