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  1. #1
    Mustafa Umut Sarac's Avatar
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    Write with Laser on Film Services

    I am looking for a company who will write micro slits on transparency film with laser. I heard there might be services at Hollywood.
    Can you help me ?

    Best ,

    Umut

  2. #2
    keithwms's Avatar
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    Chicago Albumen will make an LVT for you... but when you say slits, do you mean holes?
    "Only dead fish follow the stream"

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  3. #3
    Mustafa Umut Sarac's Avatar
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    Keith ,

    I mean slit openings on black ground. I need 6 or more different sizes autochrome grain size slits for to manufacture autochrome filter for customable to entire dyes spectrums with diffracting light.

    Is it doable ?

    Umut

  4. #4
    ic-racer's Avatar
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    Quote Originally Posted by Mustafa Umut Sarac View Post
    Keith ,

    I mean slit openings on black ground. I need 6 or more different sizes autochrome grain size slits for to manufacture autochrome filter for customable to entire dyes spectrums with diffracting light.

    Is it doable ?

    Umut
    Couldn't you do this yourself with microfilm. Draw up the pattern of black lines in large scale on white poster board and photograph, or have someone photograph it for you on a copy stand with a macro lens on high contrast microfilm like Copex or Tech Pan.

  5. #5
    Mustafa Umut Sarac's Avatar
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    ic-racer ,

    I think I could not explain , I need thousands of 6 different slits in one 8x10 film , with high precision.

    My interest is to replace dyed starch grains with slits to diffract light with same spectrum.

    Umut

  6. #6
    keithwms's Avatar
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    Yeah just make a file and send it to Chicago Albumen for an LVT. It won't cost that much.
    "Only dead fish follow the stream"

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  7. #7
    Mustafa Umut Sarac's Avatar
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    Keith ,

    excuse me but what is LVT ? What kind of technology do they use ? Do they expose emulsion with laser and moving mirrors or do they use a LCD filter ? How is the precision ?

    I looked to their site but scanner or inkjet printer informations are there.

    Before they think I am idiot , let me learn as much as possible .

    And what about the price , 50 , 100 or more ?

    Thank you ,
    Umut

  8. #8
    keithwms's Avatar
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    LVT is an imagesetter kind of thing Umut, "light valve technology." They can do up to 3048 ppi. An 8x10 should cost you about $100, if I remember correctly.

    http://www.albumenworks.com/digital_.../archival.html
    "Only dead fish follow the stream"

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  9. #9
    Mustafa Umut Sarac's Avatar
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    Keith ,

    Thank you very much. I worked with British Crossfield Imagesetters with blue laser and scanners to studio hardware 1994 to 1998 which could print 140 lines per mm and this LVT technology is nearly 1.5 times better.

    Is there a color LVT technology available or only monochrome ?

    I want to try to order Autochrome color filters also .

    Umut

  10. #10
    keithwms's Avatar
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    I think they can do color but I don't know. If all else fails you could just have them make colour separation negs and go from there.
    "Only dead fish follow the stream"

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