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You are here: Forum Home > Students > PRPTalk > RGP ledaperm  

Author Subject: RGP ledaperm
Author has RGP ledaperm
Jun 01, 2005 19:59:20

does anyone know what so special about the ledaperm design? ive looked at david thomas web site and i cant find any information regarding it.


Author has RE: RGP ledaperm
Jun 03, 2005 20:16:43

anyone with any suggestions?


Author Mickey Kaye RE: RGP ledaperm
Jun 04, 2005 13:55:03

Penticurve is I know


Author fireblade RE: RGP ledaperm
Jun 04, 2005 18:38:24

There is nothing special about it at all. Its a tricurve design and DT will issue you with a list of peripheral curves for each BOZR if you ask.


Author momo RE: RGP ledaperm
Jun 05, 2005 20:20:16

It is actually a tetracurve(FOUR Curve) lens!


Author fireblade RE: RGP ledaperm
Jun 05, 2005 21:46:42

its a long time since i fitted one!


Author momo RE: RGP ledaperm
Jun 08, 2005 07:43:23

There are so many lenses and lens designs available at the moment that it is virtually impossible to remember them all.The ACLM Yearbook is an excellent tool as is the telephone!