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  1. #11

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    Quote Originally Posted by edz
    (the heavy stuff like batteries still get sourced locally but the rest...)..
    Does this mean no grid tie then?

  2. #12
    edz
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    Quote Originally Posted by Nick Zentena
    Back then the enlargers used kerosene lamps. I doubt if "Solar "meant powered by the Sun... Burke and James in the U.S. also had a whole range of enlargers into the 1960s called "Solar".. seems a popular name..
    Edward C. Zimmermann
    BSn R&D // http://www.nonmonotonic.net

  3. #13
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    Quote Originally Posted by edz
    Back then the enlargers used kerosene lamps. I doubt if "Solar "meant powered by the Sun... Burke and James in the U.S. also had a whole range of enlargers into the 1960s called "Solar".. seems a popular name..
    Sun powered solar enlargers were used at least 135 years ago. One source dates the Burke & James company from 1897 to the 1970s. Their view cameras still serve me well.

  4. #14

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    Ansal Adams used a solar enlarger at one time, if I recall correctly he stated that it worked rather well in full sunlight or overcast, not so well under partially cloudy skys.

    How would you control the exposure time?

  5. #15
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    Solar panels in a dark room are not going to get enough light to put out any usable power... sheesh guys....

  6. #16

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    True solar-powered enlargers were indeed made; in one of my old photo books I have a drawing foor making one. I can only assume they were used on days that were uniformly sunny or uniformly cloudy. The light was skylight, run though a mixing chamber, not direct sunlight. The ideal was a north-facing roof-light with a sort of chimney (the mixing chamber) coming down to the back of the (horizontal) enlarger.

    Cheers,

    Roger

  7. #17
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    Great idea, where it works, I live under a rain cloud so it would have to be a one hour photo.

  8. #18

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    Dear Curt,

    Surely you've heard of one-hour minilabs?

    Cheers,

    R.

  9. #19
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    Herr Zimmerman, the Cretan government subsides firearms and ammunition. They don't have any money left for other stuff...

    The Athenian government subsides pollution and automobiles.

  10. #20
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    Quote Originally Posted by Paul Howell
    Ansal Adams used a solar enlarger at one time, if I recall correctly he stated that it worked rather well in full sunlight or overcast, not so well under partially cloudy skys.

    How would you control the exposure time?
    A shutter controlled by a StopClock Vario compensating timer would do the trick ...!

    Regards
    Richard

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