Hi gang ! I'm reading carefully each posts on PTV liquid lenses .... and was wondering ......Why putting liquid in those lenses ?????? Is there any other ways that manufacturers can do that ? why not a full glass lens instead ? Or ,. what is the reason of putting liquid in those ? is it cheaper ? or ... because of developped heat that get into them , so it dissipated the heat better ? (well an all glass lens may not suffer that much from excess heat , in my opinion ) It's true that I cannot figure all the concept , cause I didn't work on any PTV up to date . But ... i'm listening and studying .....? Gaetan Bourgouin Techno Logik Terrebonne Que. Can. techno1@xxxxxxxxxxxx ------------------------------------------ Make your TechAssist database better! Submit Repair Tips here: http://www.tech-assist.org/secure/tip/ ------------------------------------------ To UNSUBSCRIBE your email address, click here: mailto:techassist-request@xxxxxxxxxxxxx?subject=unsubscribe Or send a BLANK email with unsubscribe in the SUBJECT field to the address above.