BW Color emulsions on same film

[Mustafa Umut Sarac]

I found that if color and bw emulsions put on to the same film , its a fantastic idea.

Best ,

Mustafa Umut Sarac

Istanbul

[alexmacphee]

How would that work?

[markbarendt]

??????

[Mustafa Umut Sarac]

I got this idea from the autochrome thread at hybridphoto. As you know autochromes have cool colors and as Philip suggested to me that I needed to print with inkjets and the autochrome dyes on to the transpartent film to get closer look to autochrome. But he said I needed to print a bw layer also.

This idea opened new doors. If we want autochrome colors , we need bw and color together.

So bw and color film emulsions can be put in to the same film by a manufacturer.

We scan the film with selective scanning and get bw or color or together.

Or they can adjust the powers of these layers and we print bw and color together with an enlarger.

I dont know scanners are legal at apug.

[Steve Smith]

Autochrome is only monochrome emulsion. The colour comes from red, green and blue dyes.


Steve.

[markbarendt]

Post a link so interested parties can find the thread over there.

[Mustafa Umut Sarac]

http://www.hybridphoto.com/forums/showthread.php?t=1971

[Ian Grant]

Strange Steve, I thought it came from specially grown Irish Orange, Green & Violet potatoes

Ian

Autochrome is only monochrome emulsion. The colour comes from red, green and blue dyes.
Steve.

[Mustafa Umut Sarac]

Steve , I am defending to print these starch colors on to paper with hybrid photo link , by the way adding a bw layer also

[Photo Engineer]

Autochrome is Additive, and chromogenic systems are Subtractive. Thus, one uses R/G/B and the other uses C/M/Y.

Unfortunately, if you use Additive systems on reflective support you get mainly black and white images, and this is why inkjet printers use a combination of Additive and Subtractive images to attain a full colored image. To gain saturation via these methods, inkjet printers also must use a "K" channel with Black ink. This is similar to that used in the printing industry.

This relates to Autochrome and Dufay color only in that both of these used Additive systems which can only be successfully used with transmission materials unless modified as noted above in this post.

PE