Hwanik
19-Mar-2006, 03:33
Hi,
Recently I've received my x-rite 810 densitometer(which have been bought at the used market) after repairing & calibrations service.
After shooting and development TMX sheets according to the well-known E.I test procedure described by Ansel Adams, I measured the TMX filmbase+fog density. The dev time was 8:30 with D76(1:1) at 68 degree with Jobo Tank.
The result was as follows:
(the denstiy value is the average of four times measurement)
(I measured by transmission mode & Vis mode)
------------------------------
Fb+F : 0.04
iso 50 : 0.12
iso 64 : 0.095
iso 80 : 0.08
iso 100 : 0.07
iso 125 : 0.065
iso 160 : 0.06
iso 200: 0.055
-------------------------------
According to AA and other documentations, the Fb+f should be around 0.3 but my newly calibrated x-rite reported 0.04 ( about 8 times lower ! ).
So I did recheck the x-rite calibration plasque to test the proper operation of densitomenter and it was OK.
Is x-rite's scale different from others? Should I multiply ten to get the right densty of film??
What's wrong with my result??
The following keywords and/or sponsored links have been extracted automatically from the posts in this thread: Kodak, Photo, Film, Processing, camera, photography
Answers
Hwanik Choi , mar 19, 2006; 05:19 a.m.
Sorry, some typo in data. Fb+F : 0.04
iso 50: 0.12
iso 64: 0.095
iso 80: 0.08
iso 100: 0.07
iso 125: 0.065
iso 160: 0.06
iso 200: 0.055
Recently I've received my x-rite 810 densitometer(which have been bought at the used market) after repairing & calibrations service.
After shooting and development TMX sheets according to the well-known E.I test procedure described by Ansel Adams, I measured the TMX filmbase+fog density. The dev time was 8:30 with D76(1:1) at 68 degree with Jobo Tank.
The result was as follows:
(the denstiy value is the average of four times measurement)
(I measured by transmission mode & Vis mode)
------------------------------
Fb+F : 0.04
iso 50 : 0.12
iso 64 : 0.095
iso 80 : 0.08
iso 100 : 0.07
iso 125 : 0.065
iso 160 : 0.06
iso 200: 0.055
-------------------------------
According to AA and other documentations, the Fb+f should be around 0.3 but my newly calibrated x-rite reported 0.04 ( about 8 times lower ! ).
So I did recheck the x-rite calibration plasque to test the proper operation of densitomenter and it was OK.
Is x-rite's scale different from others? Should I multiply ten to get the right densty of film??
What's wrong with my result??
The following keywords and/or sponsored links have been extracted automatically from the posts in this thread: Kodak, Photo, Film, Processing, camera, photography
Answers
Hwanik Choi , mar 19, 2006; 05:19 a.m.
Sorry, some typo in data. Fb+F : 0.04
iso 50: 0.12
iso 64: 0.095
iso 80: 0.08
iso 100: 0.07
iso 125: 0.065
iso 160: 0.06
iso 200: 0.055