If realized, this would be an RF-*coupled*, interchangeable lens handheld camera. The examples listed are much bulkier or not coupled. The Razzy and Chamonix Polaroid conversions are kind of close in...
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If realized, this would be an RF-*coupled*, interchangeable lens handheld camera. The examples listed are much bulkier or not coupled. The Razzy and Chamonix Polaroid conversions are kind of close in...
What are the existing options? The various Polaroid conversions? I had a Chamonix Saber equivalent and another Chinese cottage craft product that I enjoyed but didn't work out so well in the end. RF...
The holder design confuses me too. It doesn't seem to use septums or a dark slide.
Surely I don't mean the technologies are ambitious. I mean it seems ambitious for an independent designer to bring them into production (and economical production at that), but I wish him all the...
I don't believe it's been mentioned here but apologies if so:
http://www.aubreykingston.com/lfc-home
Very beautiful design by a Bay Area designer. I do hope it makes it to production someday,...
To be very clear, I like the ergonomics of the cocking lever and the shutter release "upside down," but I like the ergonomics of the aperture lever right-side up.
With the shutter "upside down,"...
Thanks. It's just a generic Copal #0 shutter of the latest model.
However, based on photos I've seen of disassembled Copals, it seems the aperture mechanism sits behind a host of other parts and...
Hello,
Is there an easy way to flip (more precisely rotate) the aperture lever of a Copal shutter by 180 degrees, such that it goes to the "bottom" of the shutter, on the opposite side of the...
Thanks Jac. No screws visible from the outside.
I've opened up the shutter and also don't see any screws keeping the front element in place.
Attaching a couple of photos in case they help....
Thanks for replying Jim. Not yet. I've only used a rubber lid gripper. I wrote "rubber wrench" but it's really a lid gripper. A rubber wrench would be stronger I think.
I am willing to try...
I picked up a lens in Sinar CMV mount and am trying to remount it to a Copal.
But the front element is stuck in place. A rubber wrench is no help.
Does anyone know if there's glue or some kind...
I was on a similar quest recently and ended up with a used copy of the Chinese 4x5 rangefinder "Sky Bow" with a 120 Apo-Symmar. I've been using it with Grafmatic backs for handheld street...
Is there such a thing?
I am looking at this and wondering what it does: https://www.ebay.com/itm/8x10-inch-increasing-camera-back-adapter-for-Rittreckview-Rittreck-view/401782118292
So what is the weight of a Chamonix wood/carbon fiber 4x5 film holder with film loaded?
Tracy, looking forward to your findings!
I mean this lens (and variants)
https://www.bhphotovideo.com/c/product/43842-REG/Rollei_66876_150mm_f_2_8_AV_Xenotar_Projection.html
Just out of idle curiosity really. I assume they aren’t the...
Where are these threads on Photrio?
Do the Xenotar 150mm f/2.8 projector lenses share the same optical design with the ones meant for large format photography?
I think the "Cosmic Circle" options you're referring to (the subject of this thread) have been available on Taobao in China for a while. 58mm and 65mm go straight on. Above 65mm you use a helicoid.
...
The Saber recycles the Polaroid 250's (and other similar models') rangefinder (reputedly made with Zeiss optics) and frame and folding mechanism.
The Sky Bow is entirely a new construction except...
Hi Ed, I am not sure about the base length. How do you measure it?
Focusing indeed is done by directly pushing and pulling the front standard. Once in focus you release with your left index...
Also I should note that it was priced only at CNY 4380 or so when it came out, about USD 640 at current exchange rates.
There was even an 8x10 version (2.2kg body only) planned but never produced.
I suspect if people write enough emails to Kangrinpoche this can be revived. As far as I can tell few people outside...
There was a brief thread here about the pinhole successor to the Sky Bow (or Celestial Bow...) that mentions the latter. The Sky Bow was distributed by Kangrinpoche but is now discontinued. Otherwise...
Hugo also told me a couple of weeks ago they will build the Saber again with enough requests (and deposits).
Hello, are Kinematic and Grafmatic 4x5 septums interchangeable? Thanks