I bought on eBay years ago, for 'someday', a deep stainless steel tank, Kodak 8x10 IIRC.
I then read they are chemistry hogs & got more interested in trays & a Unicolor drum.
What kind of support mechanism was used with such tanks? Kind of tall & thin & easy to knock over...probably a trigger-happy bid on my part I guess. :rolleyes:
Mine are 1 gallon tanks (about 2.5" thick in the other dimension). Very economical with chemistry if you replenish the developer. I can develop 24 4 x 5 negatives at a time or 6 8 x 10. Would not be without them.
They're considerably harder to knock over when fully loaded with chemistry. 1 gallon weighs what, 8 lbs? And if you think a 1 gallon tank is tough, try one of the Kodak hard rubber 8x10 tanks - they hold 3.5 gallons. The stainless one was most likely intended to be used in a "production line" in a water jacket, with replenishment.
I received a bunch of the 3.5 gallon tanks from a fellow APUGger. Considering 4x5 is the largest I currently shoot they're only worth bringing out when I've got a LOT of film to process!
Both the 1 gallon and 3.5 gallon tanks were designed to fit into a water jacket or SS sink. In fact, there were special sinks designed for these tanks.
The 1 gallon tanks used SS 8x10 holders, but the 3.5 gallon tanks held either holders or saran baskets that held up to 24 sheets of film or paper. If you used holders, there was a top insert for either tank that spaced the holders apart to avoid scratching.
Kodak and other companies made nitrogen spargers for both types of tank for agitation with nitrogen burst.
I use the one gallon ss tanks as a distilled water dip before hanging sheets to dry. This is after developing five sheets of 8x10 in a Jobo Expert tank.
I looked in the box to see how big it was, and to my surprise, it had 4 8x10 hangers in it, so maybe it's not quite the useless orphan I initially thought ("I was thinking what good is 1 tank?")
I looked in the box to see how big it was, and to my surprise, it had 4 8x10 hangers in it, so maybe it's not quite the useless orphan I initially thought ("I was thinking what good is 1 tank?")
Gaseous burst agitation, the former industry standard for film development for nearly 40 years. When you take your transparency sheet film for E6 to a lab there is a 90% chance that they are using gaseous burst to develop it. With JOBO on the ropes there is no more repeatable and precise way to develop film around. There is only one moving part (the gas solenoid valve). I personally like the tanks with the wider rim.