Kentmere reciprocity and exposure times

[nathanielkorb]

So I picked up a roll of Kentmere 100 to load into an old camera to do some long exposures, then it dawned on me that film this cheap must have bad reciprocity (or good, in my case, since the longer the exposure, the better). I've never shot Kentmere film before but I'm using it now because of constraints. I'm exposing it at ISO 50 and developing in 1:50 rodinal. Some shots may run as long as a couple of minutes. Has anyone dealt with this, or possibly know what the curve is? Thanks.

 

[MattKing]

You could try sending a message (starting a "conversation") with the Harman representatives here on APUG - Harman Tech Service

 

[Ricardo Miranda]

It is probably faster to contact Ilford directly:
http://www.ilfordphoto.com/contact.asp