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Thread: 4X5 rangefinder from China

  1. #11
    3D-Stereo-Aeropanoramas
    Join Date
    May 2004
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    165

    Re: 4X5 rangefinder from China

    also interesting would be how to mount helicoids and how to attach filmholders. maybe 3d-krpc is only a reseller. must search for 18 on ebay.
    www.stereopan.tk
    3DStereo-Aeropanorama-Jungfraujoch

  2. #12
    3D-Stereo-Aeropanoramas
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    May 2004
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    165

    Re: 4X5 rangefinder from China

    Quote Originally Posted by europanorama View Post
    Its 18.
    or 3d-krpc on ebay. is this the same?
    2. he confused FL values and fstops. compare these with
    http://www.mrpinhole.com/holesize.php
    i already informed them.
    highly interesting pinholes with shutter/cable-release. e.g. prontor-press-range is from 2-32 secs.
    now its highest time someone will produce removable shift-plates. pinholes, zone-plates and zone-sieves ala skinkphoto but with shifted positions. e.g. a simple one only up. by rotating cam one will get shift downwards.
    2. He didnt confuse anything: his FL is 40mm thanks to camera-design...
    like aupremierplans table is telling specifit pinhole sizes match a certain range for optimal sharpness.
    see here:
    Click image for larger version. 

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    www.stereopan.tk
    3DStereo-Aeropanorama-Jungfraujoch

  3. #13
    3D-Stereo-Aeropanoramas
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    165

    Re: 4X5 rangefinder from China

    News from 3s-krpc(ebay)-seller of these 18-cameras
    1. Rangefinder 4x5 47-150mm 700 usd
    2. Point and shoot 4x5 with shutter pinhole 60mm/0.3mm f200 240 usd
    more sophisticated locking system
    option:fixed focus 58 xl and 65mm grandagon-preshift 8mm or more like in technorama 612 would be nice.
    if one could integrate in shuttered pinhole zoneplate/zone-sieve by skinkfoto?
    3. Pinhole 4x5 40mm 0.2mm f200 simple two screws locking-system 99 usd
    see also WA-viewfinder
    i like the pinholes with shutter. point and shoot has one included.
    www.stereopan.tk
    3DStereo-Aeropanorama-Jungfraujoch

  4. #14
    3D-Stereo-Aeropanoramas
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    May 2004
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    165

    Re: 4X5 rangefinder from China

    There must be a thread about the western name of the chinese 18 cameras. Cosmos Circle 4x5
    pinhole-shutters are complete sets. pinhole-plates integrated. one cannot replace e-g by replacing the with zoneplate, zonesieve(20mm) by skinkfoto.

    Update: New Shutter has replaceable Pinholes but others will not match only their own. shutter is for copal-0-lensboard. with counterring. also two holes for screwing.
    Have seen details but still open questions.
    3s-krpc on ebay is sometimes working. worked on my administrator-account last week all of a sudden then stopped maybe its my pc. couldnt reach his store. maybe censorship. only googling helped.
    Here are the links:
    he has now also Bodycaps:
    https://www.ebay.com.sg/itm/COSMOS-C...r/192965877532

    The listing is for one NEW 18 Laser Drilled Laser Drilled Pinhole Piece.

    Aperture size : 0.1mm/0.15mm/0.2mm/0.25mm/0.3mm/0.35mm/0.4mm/0.45mm/0.5mm/0.6mm/0.7mm/0.8mm/0.9mm/1.0mm
    https://www.ebay.com.sg/itm/COSMOS-C...r/192965877532
    202538329897
    https://www.ebay.com.sg/itm/Canon-EF...p/191585638255
    Last edited by europanorama; 7-Jul-2019 at 02:01.
    www.stereopan.tk
    3DStereo-Aeropanorama-Jungfraujoch

  5. #15
    3D-Stereo-Aeropanoramas
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    May 2004
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    165

    Re: 4X5 rangefinder from China

    i think we have deeper discussions(2) on photrio. new cams coming slowly.

  6. #16

    Join Date
    May 2019
    Location
    Pittsburgh PA
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    22

    Re: 4X5 rangefinder from China

    Quote Originally Posted by europanorama View Post
    i think we have deeper discussions(2) on photrio. new cams coming slowly.
    Where are these threads on Photrio?

  7. #17

    Join Date
    Jul 2006
    Location
    Collinsville, CT USA
    Posts
    1,419

    Re: 4X5 rangefinder from China

    Conversions of Polaroid cameras to shooting 4x5 sheet film certainly an option to consider. A fellow photographer picked up a used (of course) Polaroid camera at a garage sale for a mere few bucks. Adapted a 4x5 back to it. He said it was an "easy" adaption, but then he is very talented machinist, all for less than $100. Certainly one option to consider.

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