A recent "rainy Sunday afternoon" effort and made as a bit of a joke: My 4x5" "Purple Haze VI" with 145mm f1.2; fixed focus at 1m, DOF non-existent. "World's Fastest 4x5"" perhaps ...or not
A recent "rainy Sunday afternoon" effort and made as a bit of a joke: My 4x5" "Purple Haze VI" with 145mm f1.2; fixed focus at 1m, DOF non-existent. "World's Fastest 4x5"" perhaps ...or not
http://www.jeffbridges.com/perception.html "Whether you think you can, or think you can't, you are right."
Hello there. This isn't quite a camera but this is my first fully operational wooden pinhole.
It has the nickname RAT 7545 (ratoeira, mousetrap)
All the wood work is handmade using old tools.
It's made out of Bangkirai and stainless steel.
. 4x5
. 75mm focal lenght with 0,32mm pinhole
. handmade shutter that work with standard releasing cables.
. 22mm vertical shifting.
. Parts screwed together for room to improvement.
Already tested it but no contact prints yet. At least the negatives look nice without pinhole (besides the intentional one!)
Thank you!
Hello
I have a question about the build quality of the helical focus mounts,which you can get on ebay.(Chinese one)
If you have used one please chime in.
Are they well built? sturdy?
Thank you.
Koo Young Chung
Chicago
They are reasonably well made. Lots of metal, thatīs for sure. My Fuji SW 90/8 is no problem for it at all, it is rigid enough for much bigger lenses. Mine has a Copal 0 opening if I remember correctly. Maybe not the smoothest of helicoids, there sure is enough throw, very good for fine focusing close up.
If I need another, I will be looking for the same helicoid.
Ezzie, aka Eirik Russell Roberts
MF/LF newbie
In readiness for the WWP day I threw these parts together, made an internal spring loaded shutter and hey presto a 4x5 pinhole camera. Sinar back and IKEA plant pot make up the main parts.
DIY 4x5 Pinhole camera #1 by Eirik0304, on Flickr
DIY 4x5 Pinhole camera #3 by Eirik0304, on Flickr
DIY 4x5 Pinhole camera #4 by Eirik0304, on Flickr
Ezzie, aka Eirik Russell Roberts
MF/LF newbie
Koo,
I have purchased three of the Chinese helical mounts. They are well made, work smoothly, and look good. I have purchased them through the seller named, Jinfinance on ebay. I have also purchased his sinar to linhof adapters, and his linhof style extended lens boards. His communications are excellent, and I usually receive the parts in about a week to 10 days (West Coast). He has also made minor modification for me that he does not advertise. Happy Shooting, B~
To Ezzie and bojove
Thank you for your comments about the helicoid.
I'm collecting parts for my DIY 6x12 camera.
So far I got the lens(90 Super Angulon) and Polaroid miniportrait for cone.
This thread is very exciting and inspiring!
Koo Young Chung
Chicago,USA
Miniportrait as cone, helicoid and a 90? Looks like you will not be needing inspiration from this build then http://www.galerie-photo.com/chambre-legere-4x5.html
And I too have used the same seller Jinfinance. A really nice guy, very intent on pleasing. Good communicator.
Ezzie, aka Eirik Russell Roberts
MF/LF newbie
Its been 6 months in the works, several design fails and so many design changes I can barely remember where I started but I have finished what I can only consider a working version #1. I already have plans to make version #2 of this camera with all that I have learned from the making of this one. Yes I have designed this around several others that I have seen not only here on LFP but around the web. I am no wood maker, I'm a photographer hence the very many flaws in the fine craftsmanship, however it is light tight, all working parts function as they should, including the film/paper holder. I submit to you my 16x20 direct positive print camera. I'm using a 24" f/9 Rodenstock APO-Ronar with compond shutter, the bellows I folded from bristol board and is 24" square and 50" long but will never actually reach that length folded I can get it to 41" which gives me the ability to focus at around 6 feet from the lens. I have tried my first photos the other night and yes the holder and camera work and are light tight but as anyone who has used the Harman direct positive paper knows, they were to dark. Once I had finally finished the camera it continued to rain fro 2 weeks and on the first day of sun the only time I could shoot was at sun set and although I knew I was pushing it (clearly) I had to try. I will follow up with some more detailed photos of the camera (although not pretty might help out the next camera builder) and some working details as I play a bit more but I couldn't wait to show you any longer.
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