Check the listing for details. SP-645 4x5 Film Processing System (six sheets). Color: Black, Condition: New. Listed at 127.00 USD. The big brother to our SP-445! The SP-645 Max film processing system:Process up to six sheets of 4x5 film at a time.Molded texture for a better grip.Uses only 20 oz (600ml) of solutionDaylight safe: load in the dark, process in room light. Fills and drains fastInversion agitation, stand development or anything in-betweenBuilt-in liquid level indicatorsEasy use of a thermometer during processingRugged ABS/PC plasticIndustry standard O-ring sealSet includes: tank, lid, three film holders (Rev 4), baffle set, two caps and O-ring Here's a short video (Note that the video shows SP-445 with the original film holders; all units ship with the new Rev 4 unless otherwise requested): Intro to SP-445 Holders for the J. Lane Glass plates are available. Contact us for educational discounts. User's Guide Search YouTube for instructional videos. Note: no international shipping from Ebay. We also offer film and chemistry! More info: stearmanpress.com 4x5 film, darkroom, large format