Can trichrome Autochrome be on color film and suitable film / filter matching

[Mustafa Umut Sarac]

I think there is big problem at my english But I suspect anyone says he she is using shakespeare english at forums.

to think in Turkish , to write in english.
thats the problem

Umut

[holmburgers]

I'll try to tone down my superfluity . . . hehehe.

By "save for..." I mean "except for...".

[Gerald C Koch]

That's not the case, it was most certainly panchromatic, save for some small deficiencies in the red.

In a way we are both correct. The plates released commercially in 1907 used a panchromatic emulsiom. However, earlier versions of the process used an "orthochromatic" emulsion. Just how far the sensitivity extended into the green region I don't know.

[Gerald C Koch]

That's not the case, it was most certainly panchromatic, save for some small deficiencies in the red.

In a way we are both correct. The plates released commercially in 1907 used a "panchromatic" emulsiom. However, a yellow filter had to be used in front of the lens to prevent blues from becoming too light. So sensitization was rather poor.

[Mustafa Umut Sarac]

I'll try to tone down my superfluity . . . hehehe.

superman ! wants to save the earth from kodak color films.

[holmburgers]

Jerry, you're right about the yellow filter. Ortho is a fair assessment.

http://www.cinecon.com/frontimages/2446-superman.gif