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Another wild idea: Digital lid for the SP-445 film tank

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half stop lighter er.jpg

  • jhw
  • Jan 12, 2026
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tim48v

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We're thinking of developing a SmartLid for the SP-445: digital thermometer and timer. Estimated price will be in the $45 range. More details on our blog: https://shop.stearmanpress.com/blogs/news/smartlid-digital-tools-for-an-analog-world

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locutus

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That sounds really cool.

At the moment i use a Mod54 and am happy with it, but if you'd release that i would definitely buy a SP-445 with that lid too.

Regarding features:

Timer functionality would be very nice as it makes the tank its own development timer.

Backlight, i somehow am afraid that at some point i or someone else will activate that while in the darkroom with open light sensitive materials.
 
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