4X5 rangefinder from China

[europanorama]

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.

[europanorama]

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:

[europanorama]

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.

[europanorama]

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

[europanorama]

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

[aly324]

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

Where are these threads on Photrio?

[Greg]

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.