DVD of making and coating

[filmfabrik]

Hi PE!

I am also very interested in your DVD and book - no, I'm not only interested in it, I absolutely need it ;-)
As i am currently studying dental medicine in Germany, it's not very likely to have the chance to come to NYC and take part in one of your workshops...

Best regards,

Peter

[Rombo]

I would love to have Photo Engineer's book and DVD in my personal colection.
Best wishes PE!

[projectbluebird]

Coating 35mm film especially with perfs, is a very very difficult job. You would have to buy wider film, coat it and then slit it and perf it.

PE

This is what I am planning to do. I am also planning on starting the way they did way back in the day. Glass table, sheet of film, cut into strips after coating. That automatic coating machine you built is amazing PE, but I'm starting with baby steps first. (I was thinking a strip cut from graphic arts film, ~6x24". That should be long enough for ~14-16 exposures, enough for testing anyway)

[Photo Engineer]

This is what I am planning to do. I am also planning on starting the way they did way back in the day. Glass table, sheet of film, cut into strips after coating. That automatic coating machine you built is amazing PE, but I'm starting with baby steps first. (I was thinking a strip cut from graphic arts film, ~6x24". That should be long enough for ~14-16 exposures, enough for testing anyway)

Sorry, I built no automatic coating machine. That was someone else who deserves the credit. My work has been all done with hand coatings.

PE

[projectbluebird]

my mistake, apologies to everyone.

[chrisf]

I'm interested.

[Photo Engineer]

Well, we thought it would take 3 days. Here we are in day 4 editing and going to day 5!

This is a real job.

We will have about 60 - 90 minutes running time on the DVD if things go the way they are now. It will involve 4 parts, Setup and practice, Making an Azo type emulsion, Making an ISO 40 Ortho emulsion, Testing and Photo Engineering. With compression this should just fit on a DVD in HDTV format. We quit abruptly when the editor crashed for the 2nd time taking all new work with it. Since we have backups, the loss was about 10 minutes of action, but still a pain.

We hope to burn the final DVD tomorrow. We will finish the last few scenes, and then do the menu.

PE

[JBrunner]

Well, we thought it would take 3 days. Here we are in day 4 editing and going to day 5!

This is a real job.

We will have about 60 - 90 minutes running time on the DVD if things go the way they are now. It will involve 4 parts, Setup and practice, Making an Azo type emulsion, Making an ISO 40 Ortho emulsion, Testing and Photo Engineering. With compression this should just fit on a DVD in HDTV format. We quit abruptly when the editor crashed for the 2nd time taking all new work with it. Since we have backups, the loss was about 10 minutes of action, but still a pain.

We hope to burn the final DVD tomorrow. We will finish the last few scenes, and then do the menu.

PE

Hi Ron,
I know what your going through.

We have a saying... "TV production is like sausage... you're just better off not knowing how it's made."

[Emulsion]

This is what I am planning to do. I am also planning on starting the way they did way back in the day. Glass table, sheet of film, cut into strips after coating. That automatic coating machine you built is amazing PE, but I'm starting with baby steps first. (I was thinking a strip cut from graphic arts film, ~6x24". That should be long enough for ~14-16 exposures, enough for testing anyway)

Projectbluebird
An APUGer has coated his own 16mm movie film using already perforated film, see this post:
http://www.apug.org/forums/forum205/...-emulsion.html
OR
http://www.apug.org/forums/forum205/...home-brew.html

I guess that emulsion could be coated onto the "picture" area of already perforated 35mm film only....leaving the area around the sprocket holes uncoated. Alternatively the emulsion mess could be removed from around the sprockets after coating. Both methods have problems.

Regarding perforators:

The following company sells film perforators:
http://buko-gmbh.de/
Click on the film perforating tools page to see some interesting tools.

Please keep us informed of your progress.

Emulsion,

[projectbluebird]

Those are some very impressive tools, but far beyond my means. My perfing machine will be much less elegant, but easier to make, considering that my resources at the moment run to a stack of books on machining from the 20's-40's. Incidentally, I seem to have arrived independently at the Bell & Howell perf shape, the Kodak Standard being more difficult to manage.

Some (rough) specs for my machine:
hand-powered film feed (think: crank, punch, repeat.)
pneumatic punch ~8-12 perf pairs per go. testing will be needed.

I've got some basic designs for components, priced the pneumatic bits, and am (slowly) accumulating funds. First up, a hobby lathe, followed by a small compressor.

As of now, funding is the biggest stalling point, I'll post results once I start construction. I figure I'll start testing with plain graphic arts film, and then cut down a few rolls of 120. Then I'll be able to tackle making my own emulsions.