8mm Forum: Telecine DIY

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Posted by Mattias Norberg (Member # 3177) on April 03, 2013, 05:47 AM:

Hi here is some photos on my diy telecine project nothing special but maby helps someone [Smile]

http://www.flickr.com/photos/94271811@N03/

Posted by Christian Bjorgen (Member # 1780) on April 03, 2013, 02:06 PM:

Woah!

Guide and shopping list, please! [Eek!]

Posted by Mattias Norberg (Member # 3177) on April 03, 2013, 04:24 PM:

ok here is a list [Smile]

the projector is a Eumig 810D Lux with 25mm Diameter Opal Diffusing Glass and 20w lamp

the motor is a Micromotors E192.12.91 it goes only about 40rpm

The camera is DFK 23G274
the Pixel size on the camera is 4.4 µm
it´s better to have bigger pixel size you can capture then easyer the darker parts of the film better i did see there was cameras that did have over 6µm think 9µm was the best i did see but then the price was very high to [Smile]

The first lens i did buy is TECHSPEC® Compact Fixed Focal Length lenses 35mm

but then i did find Linos Mevis-C 50mm lens on ebay so i did buy it and i did get little more sharper picture [Smile]

is´t better to have 50mm lens then you do not need to be so close to the film gate

and i did buy C Mount Extension Tube Kit
when the lens get farther from the camera sensor then you get magnification
so best is to have a Extension Tube Kit so you can test what is best to have

Posted by Christian Bjorgen (Member # 1780) on April 03, 2013, 06:05 PM:

Yipes, that's expensive.. Let me know if you ever open up your own telecine shop, I have a few reels for you ;-)

Posted by Pete Richards (Member # 2203) on April 03, 2013, 10:24 PM:

Very nice setup.
However if you use the PGR version of that camera, you can replace your light source with a flash-LED system and you can capture a frame at a time, but in real time.

You are getting good resolution from the lens.

Posted by Mattias Norberg (Member # 3177) on April 04, 2013, 12:33 AM:

i did look at some of the Point Grey Research cameras but does where little more expensive

real time would be good [Smile]

heh now i can only do 0.93fps so one small film reel takes about 65min and if i start to go faster the shutter blades start´s to intervene i think and i do not whant to modify the projector

the film gate is the only thing i have modify but i did have spare so i still have one that is orginal [Smile]

Posted by Pete Richards (Member # 2203) on April 04, 2013, 12:55 AM:

I removed the shutter from mine, but it can be easily replaced.
With the Point Grey camera, I used a hall effect sensor in the projector to sense when pulldown occurs, as soon as the frame is in the gate, it triggers the camera to take an image. The point grey camera can do 26fps, so it can keep up and you get realtime capture which is very handy for feature length films!
That lens looks very good, I cannot find one for a good price though!
I am using an old enlarger lens, reversed.

Posted by Mattias Norberg (Member # 3177) on April 04, 2013, 01:18 AM:

i did pay for the Mevis-C 50mm 312 euro + 15 euro for shipping

hmm there is now one on ebay but it´s 12mm lens

Posted by Jean-Marc Toussaint (Member # 270) on April 04, 2013, 08:00 AM:

Superb job and great results. Bravo Mattias.

Posted by Mattias Norberg (Member # 3177) on April 04, 2013, 08:25 AM:

Thanks [Smile]

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