Mailinglist Archives:
Infrared
Panorama
Photo-3D
Tech-3D
Sell-3D
MF3D
|
|
| Notice |
|
This mailinglist archive is frozen since May 2001, i.e. it will stay online but will not be updated.
|
|
No Subject
To the group,
I can see by the recent flurry of posts about the "pinhole" problem that
there is a large, residual base of frustration out there.
Once again, there are suggestions that reticulation from abrupt temperature
changes or over-acidic shortstop might be to blame for the voids in the
emulsion. (In this current exchange, no one mentioned dust.) These
situations could damage your film, but the results would be gross - large
damaged areas - and good darkroom technique will eliminate the problem.
The pinholes I find in almost all my 4x5 HSI (even in the film sent to me by
Kodak) are created in the emulsion coating process by minute particles in
the anti-halation layer migrating into the image forming layer. This
explanation was offered to me by Steve Hedges at Kodak in a conversation on
8/10/98. I have since spoken with and written to Dick Johnson, Kodak Dept
MTS, about the problem. In November '98, I sent Johnson a packet of Email
messages and posts from this group with complaints about pinholes. He
eventually told me he hoped Kodak would solve the problem "by the end of the
year" ('99).
I am really upset that Kodak makes a defective product… but consider the
alternatives. These Kodak guys are sympathetic and would like the production
line to be changed. But, there is the dark suggestion that if it is too
costly to fix, Kodak could drop the film. Is this just an intimidating
bluff?
In any case, I will compile a few recent posts into another letter to Dick
Johnson and ask him how it is going.
Stan Patz NYC
_______________________________________________________________
Get Free Email and Do More On The Web. Visit http://www.msn.com
*
****
*******
******************************************************
* To remove yourself from this list, send: *
* UNSUBSCRIBE INFRARED *
* to *
* MAJORDOMO@xxxxx *
*----------------------------------------------------*
* For the IR-FAQ, IR-Gallery and heaps of links: *
* http://www.a1.nl/phomepag/markerink/mainpage.htm *
******************************************************
|