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Thread: Stearman Press SP-810

  1. #11
    Russ Fill
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    Re: Stearman Press SP-810

    Quote Originally Posted by Nodda Duma View Post
    If you want to see results of developing 8x10, the color photos I last posted in the media section were developed in the SP-810 initial production tank that I tested for them. That include Ektar, Adox CHS II (black and white of course), and Aerochrome. Worked great.
    How did you matin temp during the process. Did you set the tray in some warm water or did it hold the temp enough to get through the processing times?

    I just used the SP-810 and was so impressed. Its always a pain to try to develop my 4x10's and this worked perfectly. Well almost. I forgot to remove the little holder/spacers for 4x5 5x7 from the lid and managed to rub a couple holes in my first batch of negs. But I removed the holders and the rest of the negs turned out perfectly.
    Russ Fill
    Director of Photography
    https://www.russfill.com
    https://www.instagram.com/russfill/?hl=en

  2. #12

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    Re: Stearman Press SP-810

    Forget the water bath and other heresy: https://shop.stearmanpress.com/blogs...of-the-sp-8x10
    Click image for larger version. 

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  3. #13
    Russ Fill
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    Cool Re: Stearman Press SP-810

    Quote Originally Posted by tim48v View Post
    Forget the water bath and other heresy: https://shop.stearmanpress.com/blogs...of-the-sp-8x10
    Click image for larger version. 

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    Thank you so much for this info I knew there was a reason I bought the SP-810.
    I have always gone off trying to keep an average as keeping an absolute is almost impossible but to have the comfort knowing that there is very little temp change over 10 mins is great to know. Ill develop with crazed comfort now knowing not to worry so much about the loss of temp.
    Russ Fill
    Director of Photography
    https://www.russfill.com
    https://www.instagram.com/russfill/?hl=en

  4. #14

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    Re: Stearman Press SP-810

    Russ,
    The real "secret" is consistency! Keep a detailed notebook and once you've figured out what works, keep doing it.


    Tim

  5. #15

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    Beuningen (GLD)
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    Re: Stearman Press SP-810

    If you want to keep the temp stable you can also use a “tray heater” not sure if this is the correct word.
    The ones you use to keep the temp for your developer tray for your paper stable.
    Best regards

    Hans

  6. #16

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    Re: Stearman Press SP-810

    Hans,
    We actually looked into designing a heater but decided it wasn't needed. Or more accurately, wouldn't be needed by enough people to justify it.

    There are also technical issues. For example, where would you put it? There really isn't room inside the tray and if you put it in the fill/drain port, we were concerned about uneven heating due to liquid flowing through the baffles.

    The best solution we could come up with was a silicone pad (like those used on engine oil pans) that could be glued to the bottom and provide even distribution of the heat. But there's another issue: heaters need time to stabilize (even with a high performance PID controller). Unlike print making in a darkroom, the tray isn't left filled but is emptied and refilled often. Now if you're filling the tray with liquid near the desired set point, maybe you'd get away with it...

    In the end, we concluded it just wasn't needed.

    We're still considering building our own Temperature Compensated Timer. The concept has been around for years and is well proven. Again, the question is: is it really needed?

    Tim

  7. #17
    Nodda Duma's Avatar
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    Re: Stearman Press SP-810

    Quote Originally Posted by Roger Thoms View Post
    Can't find them, any chance you could post a link?

    Roger
    Hey Roger,

    The CHS 100 II sheets I developed were of a local family ... friends that I took pictures of for Christmas Cards so I didn't post those publicly (they ended up picking the dry plate shot for their card, I'm happy to say).

    However, here's a link to a Provia 8x10 sheet: https://www.photrio.com/forum/media/...ewasset.61291/

    And an 8x10 Aerochrome sheet: https://www.photrio.com/forum/media/...-be-red.61268/

    Finally, a 4x5 Ektar sheet .. pardon the dust: https://www.photrio.com/forum/media/...untains.60960/

    All developed in the SP-810 tank.
    Newly made large format dry plates available! Look:
    https://www.pictoriographica.com

  8. #18
    Nodda Duma's Avatar
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    Re: Stearman Press SP-810

    Quote Originally Posted by Russ Fill View Post
    How did you matin temp during the process. Did you set the tray in some warm water or did it hold the temp enough to get through the processing times?

    I just used the SP-810 and was so impressed. Its always a pain to try to develop my 4x10's and this worked perfectly. Well almost. I forgot to remove the little holder/spacers for 4x5 5x7 from the lid and managed to rub a couple holes in my first batch of negs. But I removed the holders and the rest of the negs turned out perfectly.
    As Tim mentions after your post, it became quickly obvious that the tank keeps the temperatures consistent enough for good results (I develop at 40C) ... and of course the proof is in the pudding.
    If I wanted to be anal, I have a 1" thick sheet of insulating styrofoam that I could put under the tank to block the main source of heat loss (through the bottom), but I'm pretty happy with the results.

    Cheers,
    Jason
    Newly made large format dry plates available! Look:
    https://www.pictoriographica.com

  9. #19
    Roger Thoms's Avatar
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    Re: Stearman Press SP-810

    Quote Originally Posted by Nodda Duma View Post
    Hey Roger,

    The CHS 100 II sheets I developed were of a local family ... friends that I took pictures of for Christmas Cards so I didn't post those publicly (they ended up picking the dry plate shot for their card, I'm happy to say).

    However, here's a link to a Provia 8x10 sheet: https://www.photrio.com/forum/media/...ewasset.61291/

    And an 8x10 Aerochrome sheet: https://www.photrio.com/forum/media/...-be-red.61268/

    Finally, a 4x5 Ektar sheet .. pardon the dust: https://www.photrio.com/forum/media/...untains.60960/

    All developed in the SP-810 tank.
    Thanks, no wonder I couldn’t find them, I was looking in the image sharing area here on LFPF. Should have thought to look over on Photrio, since your active there too.

    The images look good, the color infrared is especially cool.

    Roger

  10. #20
    Russ Fill
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    Re: Stearman Press SP-810

    Quote Originally Posted by Nodda Duma View Post
    As Tim mentions after your post, it became quickly obvious that the tank keeps the temperatures consistent enough for good results (I develop at 40C) ... and of course the proof is in the pudding.
    If I wanted to be anal, I have a 1" thick sheet of insulating styrofoam that I could put under the tank to block the main source of heat loss (through the bottom), but I'm pretty happy with the results.

    Cheers,
    Jason
    I was actually thinking that if I wanted to I could put one of those reptile pads you put under an aquarium with a reptile in, under the tank just to keep the temp a little more stable but it would take some time to figure out just how much insulation between the reptile pad and the bottom of the tank to keep the temp I wanted..
    All this though is if Im going for perfect temp but I feel that the averaging of the temp through the development will be more than adequate for my results.
    Thank you all for the info. I have a new level of understanding which is what its all about right?
    Russ Fill
    Director of Photography
    https://www.russfill.com
    https://www.instagram.com/russfill/?hl=en

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