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zit

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Hello there,

in charge of the photographic workshop of an art school in Paris since 1997 (B + W and color lab, shooting studios with flashlights and continuous lights all formats from 35 mm up to -sometimes- 8x10).
Involved in the digitalisation of the workshop since then (we knew it was coming) we now have closed the smallest lab to put big printers (that fail much more than enlargers !) and add also scanners to the workflow of the students that need it.

Analog photography is very popular among our students but the every day shrinking market is a disaster for supplies like chemicals, X-Tol, for instance...

We are now looking to produce homemade chemicals for B + W film and paper process so we can be autonomous.

I come here every time I need some informations about chemical formulas and had a lot of fun last year experimenting the film acceleration process with 8 x 10 slide films cross processed : it's incredible to see the colors appear in daylight !

Besides, I shoot films in 35 mm with Nikon and Leica and 4 x 5 " with Horseman or Sinar, only on E-6 purposed films that do not always get the right treatment.

Some exemples of my work can be fond on my old blog : kiloptyque.net (need to scroll a little to have some nice colors - sorry, lot of french inside ;o).

K1Fine__10_m.jpg


That's the kiloptyque, 32 films with 32 images on each strip = 1024 images with 38 meters of LED strip, a big light table

Last year I spend some time making a guillotine shutter for an enormous 36 inches aerial lens : https://hackaday.io/project/184837-how-to-use-an-aerial-36-inches-lens
the post is very long and has a lot of uninteresting details (because I explain all the fails... and it's not yet completely achieved).

Capture d’écran 2024-06-06 à 18.10.55.png

For the scale, those tripods are very big ones : an old Gitzo N°4 with an enormous cinema head I thought I'd never use and a Velbon 830

I'm using Nikon or Olympus digital cameras and like to have fun with good lens like here (still french, but Deepl is your best friend) : http://www.cuk.ch/articles/5069/ and the sequel with more images : http://www.cuk.ch/articles/5674/
I made on a lathe an enormous ring to mount any reversed short focal on a Nikon 2,8/300 with an MFT camera : big rig for microphotography, 5 x magnification and very nice pictures with the Leica 1,4/50 asph.

huitre.jpg


an oyster, Marennes d'Oléron (I ate it afterwards)
 
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OP
OP
zit

zit

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And I have a big project that may be interesting for some people : the JobUino project.

I have some big ATL Jobo film processors, three different models and they are not working very well:
the muscles (motors, mechanics) and some organs (plumbing) are in a good shape, but the nervous system (electronics, brains and temps sensors) is dead or near Alzheimer symptoms.

So the apparently simple idea is to do a brain and nervous system transplant with modern things anyone could upload in an open source mindset, like an Arduino, a Raspi or whatever microcontroller that can handle the very few automatised tasks needed, pumping chemicals when the temps is reached, rotate the drum, lift the arm when finish, and again, and open the electrovalve for washing, and find nice sounds for the alerts and end of program (I hate beeps).

I know there's been an attempt, maybe I even saw it here on Photrio, but it was just the beginning of the story, it may be not such a simple operation after all, but it's a funny challenge... and I really need to process films myself, for the kind of things I do with them now.
 

Trask

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Soyez le bienvenu! Wish I'd met you when I lived in Paris a few years ago -- would have been interesting to visit your art school, which I am glad to hear is finding new photographers who are interested in film-based photography. That lens set-up you have there is quite a handful -- not a "decisive moment" device, I don't think! Good luck with your JOBO project -- far outside my experience, I'm afraid.
 
OP
OP
zit

zit

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Of course I'll share the JobUino project, it's important to share knowledge, I work in a school after all... and I may need help too ;o), I'm nothing like an engineer, just having fun like when I was a kid with Lego bricks.

I just recovered yesterday a very nice big color touchscreen salvaged from an Epson 9500 which starting switch was dead, the only switch on the machine is dead after only 3 years, and it's necessary to change the whole motherboard !

It could be a nice part for the processor controls and settings ;oP

(this switch story makes me think of a funny thing : try to pronounce, fast :
« Three Swedish witches watches three Swiss Swach switches, which Swedish witch watches which Swiss Swatch watch switch ? » ;o)
 

koraks

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It could be a nice part for the processor controls and settings ;oP

If you want others to benefit from your work, I would recommend to work with some kind of screen that's commonly available. A simple/small color IPS touch screen costs only a few Euros these days.
Moreover, you may spend more time figuring out how to interface with your (possibly proprietary) Epson screen than getting the Jobo to work again. There's often no or little documentation for these OEM parts.

I'd consider getting the Epson screen to work as a separate project, really.
 
OP
OP
zit

zit

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Thank you for the wise advice : I'm not very aware on those matters !

I'll start soon the page on Hackaday.io and will make a post around here in the lab section to get everyone informed, It's gonna be a long journey, hope I'll reach the goal anyway...

You don't have to hope to undertake, nor succeed to persevere.
 
OP
OP
zit

zit

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These words aren't mine, maybe some guy named Willem, and I prefer it in french :

« Point n'est besoin d'espérer pour entreprendre, ni de réussir pour persévérer »

a very optimistic way of thinking : do, make, try, and sometimes, it doesn't fail
 
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