on 25/07/03 02:49 pm, Stephen Shepherd wrote: > I have noticed that when shooting stuff on a white backdrop (back lit > exposed about +2 stops to white it out) that I am getting a fall off of > light on my 1ds files at the bottom of the frames
Stephen This is a bit of a long shot but... What shutter speed are you using? Are you firing on first or second curtain sync? I assume when you refer to 'bottom of the frame' you have the camera in landscape position. The 'official' top sync speed of the 1Ds is 1/250 but in reality with studio flash (well my Elinchrom anyway) it's 1/200 or a bit slower. Anything faster causes a degree of black-out as the second curtain runs. However this is not so much roll-off as dead obvious vignette along the bottom (longest dimension) of the chip. Regards -- Mark M Sykes Mark Sykes Photography =============================================================== GO TO http://www.prodig.org for ~ GUIDELINES ~ un/SUBSCRIBING ~ ITEMS for SALE
