QUOTE (kbfirebreather @ Jul 27 2007, 10:43 AM)

Hey I was wondering how I determine what size fresnal I would require. I have a 17inch LCD monitor...should the two fresnals be in there?
Yes as put so eloquently by Squishio (

) you need to do a lot more basic reading.
You will need large fresnels , so basically you will need the LumenLab Pro lens Kit. And no there aren't any fresnels in a 17" lcd.