{"id":12315,"date":"2016-03-22T21:04:09","date_gmt":"2016-03-23T03:04:09","guid":{"rendered":"http:\/\/jbhphoto.com\/blog\/?p=12315"},"modified":"2023-07-15T17:10:56","modified_gmt":"2023-07-15T23:10:56","slug":"zone-vi-end","status":"publish","type":"post","link":"https:\/\/www.jbhphoto.com\/blog\/2016\/03\/22\/zone-vi-end\/","title":{"rendered":"ZONE VI; THE END"},"content":{"rendered":"

\"ZoneIt has finally happened!\u00a0 I have used Zone VI chemicals for well over twenty five years now.\u00a0 Though we have moved on to different formulations for finished prints, we have continued to use Zone VI Print Developer for proofing.\u00a0 That is. . . until now. \u00a0 I mixed the last bag for proofing our 2015\/2016 trip and that is that.\u00a0 This has been a looming change that has been in the back of my mind for several years now and it finally came time to do some testing.\u00a0 OH Drat. . . TESTING!!!<\/strong><\/h4>\n

Remembering a conversation from years back someone, somewhere, said that Zone VI Print Developer was just D-72. . . or maybe Dektol?\u00a0 There is one sure fire way to find out. . . “TRY IT” as Fred would say.\u00a0 And that is exactly what I did.<\/p>\n

I mixed a liter batch of D-72 and used the last of the Zone VI Print Developer in a side-by-side test.\u00a0 First I exposed two sheets of our proofing paper, set to Grade #2, to a Stouffer 21-Step Wedge.\u00a0 Processed one sheet in each developer and finished as usual.\u00a0 Both developers were diluted 1:3, all temperatures were matched and the Zone VI Compensating Developing Timer was used on each.<\/p>\n

After the test sheets were dry, I measured them with an XRite 810 densitometer and plotted the curves with the BTZS Plotter app.\u00a0 I knew from the numbers they would be a near match and the resulting graph shows very little difference. \u00a0 That pretty much settled that. \u00a0(NOTE: \u00a0In\u00a0the plot, the black line is D-76 and \u00a0the red is Zone VI.)<\/p>\n

\"D-71<\/a>
\nThere was only one more test required to convince me, and that was making a real proof.\u00a0 I chose a familiar negative and exposed two more sheets of paper using this negative.\u00a0 Each sheet of paper was developed in the same fashion as the step wedge prints and finished as usual.\u00a0 The two proofs were a near identical match.\u00a0 The Zone VI was very slightly less contrasty, but that could have been due to the fact that the developer was old.\u00a0 The main thing I was looking for was to be sure the color of the two proofs were the same.\u00a0 They are, to my eye at least, exactly the same color. \u00a0(NOTE: \u00a0The proofs below, on the left is\u00a0the D-72\u00a0and on the right is the Zone VI.)<\/p>\n

All that was left to do was to make a new paper grade test to confirm the enlarger VCCL settings required to print a grade #2 and that was the end of the testing.<\/p>\n

FYI;\u00a0 Here is how to calibrate a VC enlarger, “USING BTZS TO CALIBRATE A VARIABLE CONTRAST COLD LIGHT<\/a><\/span>” originally published in the Sep\/Oct 2007 issue of View Camera Magazine.\u00a0 I have added the formula for D-72 to the FORMULAS<\/a><\/span> area of the jpbhphoto.com BLOG<\/a><\/span>.<\/strong><\/h4>\n

\"Zone<\/a>
\nIt’s a sad day but finally Zone VI, as a supplier of darkroom chemistry for us, is gone forever.\u00a0 The good news is, it is possible to mix your own developer and achieve the same results that we have become accustom to over the years.\u00a0 Proper proofing is the control and the verification that your technique is working as you think it should.\u00a0 It is important to keep the proofing process as consistent as possible.\u00a0 I believe we are good to go without Zone VI now.\u00a0 Thanks Fred for all you did for traditional film photography!<\/p>\n

JB<\/p>\n

 <\/p>\n

\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

It has finally happened!\u00a0 I have used Zone VI chemicals for well over twenty five years now.\u00a0 Though we have moved on to different formulations for finished prints, we have continued to use Zone VI Print Developer for proofing.\u00a0 That is. . . until now. \u00a0 I mixed the last bag for proofing our 2015\/2016Continue reading →<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","enabled":false},"version":2}},"categories":[99,5,9],"tags":[33,16,17,62,18,55],"class_list":["post-12315","post","type-post","status-publish","format-standard","hentry","category-bw-paper","category-darkroom","category-photography","tag-darkroom-formulas","tag-film-photography","tag-fine-art-photography","tag-fred-picker","tag-jb-susan-harlin","tag-zone-vi","no-thumb"],"jetpack_publicize_connections":[],"yoast_head":"\nZONE VI; 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