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RE: [APML] RG200 Alert



Don, you are absolutely correct: it has changed.
 
Just got back a roll of RG200 and it certainly is a new formulation. The negative strip says RB 200-3 where as the older stuff says 200-2 RB. Hypered 3 hrs @ 50c did nothing for the film. The exposure of 45 minutes was virtually absent of any red, very poor overall sensitivity.
 
Now I have to figure out which unused rolls I have that are the -2 and which are -3 . Any one have any ideas besides developing a test strip ?
 
/howard
-----Original Message-----
From: owner-astro-photo@seds.org [mailto:owner-astro-photo@seds.org]On Behalf Of westergren
Sent: Wednesday, August 07, 2002 1:39 AM
To: astro-photo@seds.org
Subject: [APML] RG200 Alert

I believe another great color negative film has been changed by the manufacturer - Kodak Royal Gold 200.  Film I bought in April for a test series hypered completely at 30°C in 36 hours with a characteristic rebate change.  That film is the best I've found to date. I bought additional rolls in late June (marked expire 2/2004) and that film doesn't hyper in 36 hours, it now takes 96 hours to get the same rebate change.  This new version has no change in the film markings, and has slightly less light sensitivity than the "older" film.  The new stuff hypered for me in 12 hours at 50°C, with light sensitivity better than the new 30° hyper, but less than the old 30° hyper.
 
It's still a great film, but I hate to loose anything in film capability.  From my tests, RG200 hypers best at 50°C.
 
Has anyone else observed or sensed a change in RG200?
 
Don