Yes you did, apparently Kodak has incorporated a UV coating and the film is no longer useful for alt printing.Ray Bidegain said:Did I miss something about the new 100 tmax having a base that blocks UV?
Ray Bidegain said:Did I miss something about the new 100 tmax having a base that blocks UV?
smieglitz said:My results indicate the new film is blocking 4 steps or ~2 stops exposure at this level of 500 units total exposure. To compensate for this, the 500 unit exposure would need to be extended to 2000 units and that would take nearly 2 hours to expose.
If interested you can view the test image at:
Bye bye TMAX.
sanking said:On another forum it was reported that the UV coating can be removed by soaking in an alcohol solution, after processing is completed. I have not tried the soak myself but several people report that it works.
Do you recall which alcohol was used? Are we talking methanol, ethanol, or hopefully isopropyl ?
Do you have the link to the thread on the other forum?
ciocc said:I just printed my first Pd/Pt prints last weekend using Tmax 100 negatives. The negatives were made using the repackaged Tmax 100 with the new developing times. The film was developed in D-76 using the standard procedure, no tricks. I exposed the negative to the sun for 1.5 minutes after having made a test strip with a maximum time of 18 minutes. The sun was just about directly overhead on a cloudless day. The print looked great to me, but to be sure, I showed it to my neighbor who is an experienced Pt/Pd printer. He said the print was fine, not underexposed. He was surprised by the 1.5 minute exposure time. The 21 step tablet placed next to the negative had 13 distinct steps - sometimes it looks like 12 when the viewing light is different.
I don't know why I'm not having the UV problem described. Would using the sun have anything to do with it? Obviously I'm not disappointed, but it's strange that I'm not having the problem.
sanking said:The UV blocking of TMAX-100 is in a fairly narrow range of the UV wavelength while Pt./Pd. is sensitive to light from well outside this range. The sun provides radiations in a very wide band on both sides of the UV filter and this could well explain why it is more efficient in printing Pt./Pd. than the artifical lights we normally use in exposing this process, which emit light in a fairly narrow band of wavelength.
|Photrio.com contains affiliate links to products. We may receive a commission for purchases made through these links. |
To read our full affiliate disclosure statement please click Here.
PHOTRIO PARTNERS EQUALLY FUNDING OUR COMMUNITY: