Do not change the bulb. Attenuate the light on the sensor by using a piece of thin paper covering the aperture. Tape it in place for these purposes.. Or use a ND filter from your camera. Same result. Frank Filippone red735i@xxxxxxxxxxxxx ============================================================================================================= To unsubscribe from this list, go to www.freelists.org and logon to your account (the same e-mail address and password you set-up when you subscribed,) and unsubscribe from there.