danny_liao Posted April 27, 2005 Share Posted April 27, 2005 I recently started processing my Kodak 4x5 VC film with my Jobo CPEusing Tetenal's Press Kit. I'm scanning the film with my Canon 9950F. The results I'm getting looks great. However, so far with all theones I processed, I'm getting a green cast in all of them. Is thisnormal? I never had this problem before when getting color negsprocessed at a lab so I'm thinking some where along the line, Iscrewed up. Any suggestions? I was told to Stabilize/Fix it a littlebit longer. Is this correct? If so, by how much? I've been going bythe recommended 4 mins/30secs, if there is a better time, please letme know. By the way, the green cast is not created by my scanner. I scannedother negs processed from labs and they don't have this problem. I'vealso checked the negs but it's hard to tell cause negs already have amagenta cast. Link to comment Share on other sites More sharing options...
john_shriver Posted April 27, 2005 Share Posted April 27, 2005 Try Kodak or Fuji/Hunt chemicals? Only they have the full set of patented and trade secret formulas that make a true C-41 process. Link to comment Share on other sites More sharing options...
stephen_allan Posted April 28, 2005 Share Posted April 28, 2005 Hi Danny, Jobo publish times for the various processes on their US website <a href="http://www.jobo-usa.com/instructions/instructions_process_index.htm">here</a>. They recommend a shorter time for the developer of 3min 15 sec. The extended development you have done may account for the green cast, but you would need to test to be sure. Steve Link to comment Share on other sites More sharing options...
danny_liao Posted April 28, 2005 Author Share Posted April 28, 2005 Hey Stephen, Thanks for the pointer. I checked the site earlier and didn't find the info so I went off the info provided in that manual. It's weird, the times in the manual is significantlly shorter than the times provided on the web. Anyway, thanks for the help. I'll give the new times a try. Link to comment Share on other sites More sharing options...
georg_kern Posted April 29, 2005 Share Posted April 29, 2005 If you got neutral results from your scanner with negatives up to now, then this was just good luck. Normally (i.e., in 99% of the cases) you need to do some post-processing. So: this is not a quality criteria to discern between different developer kits. In general, most home-processing kits use a combined bleach-fix (these two steps are seperate in machine processing), and this is known to cause a denser orange-brownish mask. After converting the negative to positive, this might lead to more green. Regards Georg Link to comment Share on other sites More sharing options...
discpad Posted May 2, 2005 Share Posted May 2, 2005 About the only thing the Tetenal "Press Kit" is now good for is, well, when you're out in the field and your dSLR just went TitsUp.Com and you're on your emergency 35mm camera. <br><br> If Ron checks in, he'll tell you that producing a "strong enough" bleach-fix ("blix") for C41 & E6 processing is like balancing an upside-down chandelier. <br><br> Since you're shooting 4x5, I recommend getting the Kodak "Pro" chemistry individually: You'll save money; and get MUCH better results. If you're in NYC, B&H or Adorama has the chemistry; and you can pick it up without the $20 hazmat shipping surcharge imposed by FedEx or UPS. <br><br> By the way, I *highly* recommend you trade in your CPE for a model higher up, so you can use a Pro (3000 series) drum: Using the 2500/2800 series drums with the 2509 sheet film holder STINKS, because of uniformity problems... From an owner of two ATL-3 processors! <br><br> Cheers!<br> Dan<br> Link to comment Share on other sites More sharing options...
rowland_mowrey Posted May 2, 2005 Share Posted May 2, 2005 Danny; Dan is right, making a blix for film is hard. Making a powder blix for film is VERY hard. That said, I think your problem is either one of two things. You are forming cyan leuco dye due to a defective blix, or more likely, you have poor development and the cyan layer is underdeveloped. You can fix the former problem by rebleaching in a ferricyanide bleach, then fix, wash, stabilize and dry. You cannot fix the second problem. Ron Mowrey Link to comment Share on other sites More sharing options...
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