JChrome
Street Worker
Many thanks for the kind comments from you and Kent!
I christen her, The Cristina 612. The wife's moniker is the most important, in all lines of business.
www.stillthrill.com
Testing My 3D Printed 6x12 Camera
- Thread starter JChrome
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Many thanks for the kind comments from you and Kent!
I christen her, The Cristina 612. The wife's moniker is the most important, in all lines of business.
www.stillthrill.com
Spanik
Well-known
Great! That's good news. So it was nothing more than flocking? Just curious...
I don't doubt this eats film, try feeding a 6x17. But I do have a 6x12 back, a Mamiya 50 but I'm missing something in between. Got it?
JChrome
Street Worker
Haha. I got it!
I added flocking and a load of gaffers tape to the outside to keep out the light. I'm currently in talks to print it out of another material so the gaffers tape on the outside isn't needed. The Flocking I think is needed regardless, to reduce the internal glare and deepen contrast.
Is your back a Dayi or Horseman?
Also the 50mm vignettes somewhat (slightly) but I think it adds character. The 75 covers it fully. But you couldn't go wrong with either lens. Both are super, IMHO.
www.stillthrill.com
Spanik
Well-known
It's a Sinar Zoom back. Can do 6x4.5, 6x6, 6x7, 6x9 and 6x12. I thought of coupling it to a Fuji SWD 75 but I have no idea for focussing. But the Mamiya Press lenses do have a helix build-in so that might be a better option. Doesn't surprise me there is some vignetting, they were intended for 6x9. Maybe the ones for the Polaroid version might be better, they do have a larger image circle IIRC.
Nokton48
Veteran
Very Cool. I love Crazycams.
Results look outstanding. Keep going with it. Push the envelope.
Results look outstanding. Keep going with it. Push the envelope.
JChrome
Street Worker
Can your Sinar Zoom switch between 645, 6x7, 6x9 and 6x12 mid-roll? Or is each roll devoted to a single size? I could of course work to develop a back to fit the Zoom but it would take some time and I'd need an example of one to work with, iterate on etc.
The Mamiya lenses for the Polaroid 600SE do have a larger image circle because they were designed to cover the pack film (FP3000 and FP100 which are sadly no longer made). The three lenses designed for the Polaroid were the 75mm, 127mm and the 150mm. The 75mm covers the 6x12 and 4x5 fully. The 150mm vignettes on both (I've tested it). I've yet to try the 127mm but I suspect vignetting.
Re: Your Fuji SWC 75 - I've been thinking about building a lens cone that takes a Technika lens board and just sets it @ infinity. The majority of the shots are at infinity anyway. Oh how I'd love to get the Schneider 47mm and set it at infinity... mmmmmmmm...
Of course, having a helicoid is really useful as you can imagine. There are some 4x5 lens helicoids on the bay but I'd bet they are shoddy construction (aluminum).
JChrome
Street Worker
Thanks! More to come. I'm currently camping in Norway and I rarely get internet or electronic stimulation so the ideas are flowing like the river nile 🙂
JChrome
Street Worker
Here are some of the first from Norway:
JChrome
Street Worker
The camera performed really well. She is lightweight which was perfect for some of those major hikes.
The two biggest issues: leaving the dark slide in and forgetting I was not focused at infinity. The first issue can be taken care of by removing the darkslide completely. The second just takes diligence.
The two biggest issues: leaving the dark slide in and forgetting I was not focused at infinity. The first issue can be taken care of by removing the darkslide completely. The second just takes diligence.
JChrome
Street Worker
I've started work on a new design.
I began to notice that some of my images have darkening in the corners and some don't which confounded me. I realized though, that it's the faster apertures causing the vignetting.
Here's an example:
I began to notice that some of my images have darkening in the corners and some don't which confounded me. I realized though, that it's the faster apertures causing the vignetting.
Here's an example:
JChrome
Street Worker
I am also seeing what appears to be a light leak as well, but it's unlike other light leaks that I've seen in the sense that it's only on one or a few photos.
I looked through a strip of contiguous shots and out of the 6 shots, it's really prevalent on one shot but not the rest. So I am at a loss for an explanation there.
I looked through a strip of contiguous shots and out of the 6 shots, it's really prevalent on one shot but not the rest. So I am at a loss for an explanation there.
Spanik
Well-known
Lost track of this thread when it was moved. Have to say there are some great images in it. Really, this is a lens that is underrrated so much it isn't funny. Well, it kind of is funny for us who have one and use it. I really have to use it more, it is a lens that performs so far out of its zone.
Now the vignetting... it is noticable, but on the other hand it doesn't bother me.
You got Norway captured like I remember it from 40 years ago. Wiiiiiiide landscapes, empty, lonely, wild and raw. Gorgeous.
Now the vignetting... it is noticable, but on the other hand it doesn't bother me.
You got Norway captured like I remember it from 40 years ago. Wiiiiiiide landscapes, empty, lonely, wild and raw. Gorgeous.
JChrome
Street Worker
Thanks! Yep, Norway is still incredibly beautiful. Quite possibly one of the best places to hike/camp I've ever been.
And yes, the 75mm super Angulon is a beast of a performer. While there is vignetting, it's only at wider apertures. At f16 or above, it seems imperceptible.
400 iso film in direct sunshine is needed. You need to shoot at 1/250 or faster to make things really sharp if using handheld. Portra 400 is perfect. So 1/250 @ F22 seems to be the sweet spot.
I really wish I had a back that fit your Sinar Zoom. I only have one which will fit the Dayi/Horseman backs, at this point.
www.stillthrill.com
kuzano
Veteran
Only one question... paramount to my continuing to follow this...
I want a 6X12. I have been shooting Mamiya Press and MF Fuji for years.
Question.
Are you going to market this, or market the 3D files????? Please let me know. I am set on the lenses and backs.
I want a 6X12. I have been shooting Mamiya Press and MF Fuji for years.
Question.
Are you going to market this, or market the 3D files????? Please let me know. I am set on the lenses and backs.
JChrome
Street Worker
I am planning on marketing it and am working through the details now but it might take some time 🙂
kuzano
Veteran
Please help me replace my FrankenKamera
Please help me replace my FrankenKamera
Consider me a test/trial/purchase subject.
I simply must replace this monster with a 6X12 that uses my Mamiya Press lenses. I may make a mask to use my 65mm, and I may get a 50. I may put my 100 f2.8 on and mask as well.
Mamiya Press 75, Linhof 4X5 back, Mamiya 65 finder, Pine
Please help me replace my FrankenKamera
Consider me a test/trial/purchase subject.
I simply must replace this monster with a 6X12 that uses my Mamiya Press lenses. I may make a mask to use my 65mm, and I may get a 50. I may put my 100 f2.8 on and mask as well.
Mamiya Press 75, Linhof 4X5 back, Mamiya 65 finder, Pine
VTHokiEE
Well-known
Very cool, would love to see this as a product.
JChrome
Street Worker
Could you explain a bit more about why you'd like a mask? You mean shoot 6x12 with the 65mm or 50mm and then mask the film? I'd recommend shooting the whole frame and then cropping if needed. Or, if you want to shoot 6x9, you could also get a Horseman 6x9 back (made for 4x5s). They are less than $100 and are great.
kuzano
Veteran
Just an errant "brain fart". am so used to masking for other formats on large format. Thinking to be able to use my 65mm which is not going to cover 6x12 or 4x5.
May never happen, and don't want to throw out considerations that may hinder your plans and progress. Forget I said it.
I've been doing a lot of stuff with cutting down Polaroid Pathfinders, and slowed to a standstill on that. Have one cut down to the base rear plane, bellows, and repositioned front standards to maintain the parallel aspects of the front to back. I extended the back to flare out to 4X5 inch, and yet keep the square of the Graflex Crown Graflok back. But enough of that.
Forge on, please.
kuzano
Veteran
Howzitgoing?