The maximum continuous shooting speeds of the respective EOS cameras when used with the Power Drive Booster PB-E2 are: Configuration Film Advance Mode One Shot / Manual AI Servo AF Power Source EOS-3 + PB-E2 CH Mode 7 fps 7 fps Ni-MH Pack PB-E2 EOS-3 + PB-E2 CH Mode CL Mode 6 fps 3 fps 5 fps 3 fps AA-size alkalines, lithiums or Ni-Cds EOS-1N + PB-E2 CH Mode CL Mode 6 fps 3 fps 5 fps 2.5 fps AA-size alkalines, lithiums or Ni-Cds EOS-1 + PB-E2 CH Mode CL Mode 5.5 fps 3 fps 4.5 fps 2.5 fps AA-size alkalines or Ni-Cds The above figures apply when the shutter speed is 1/250 sec. or faster Rolls of 36-exposure film that can be shot with the Canon EOS-3 with the Power Drive Booster PB-E2 using AA-size alkaline, lithium or rechargeable Ni-Cd batteries are: At 20-degree C = 85 rolls (Alkaline) 120 (Lithium) 35 (Ni-Cd) At minus 20-degree C = 5 rolls (Alkaline) 50 (Lithium) 24 (Ni-Cd) Shooting capacities are the same when the PB-E2 is used with the Canon EOS-1N. For the EOS-1 and PB-E2 combination, the results are also the same except lithium batteries are not recommended to be used for the original model. The performance of the Canon EOS-3 with the Power Drive Booster PB-E2 combination is about the same as the Canon EOS-1N w/Power Drive Booster E1 when both cameras are used in AI Servo AF in CH modes with ONLY the centre AF point selected. But when the 45-point (EOS-3) and 5-point AF (EOS-1N) sensors are activated, the former has better focus tracking performances over the latter when used in AI Servo AF mode but still lose out to the pellicle-mirrored Canon EOS-1N RS in similar fashion. (more on this later) Sequence shots of 500cc world champion Michael Doohan (EOS-3 & PB-E2) << Back to Main . 1 . 2 . 3 . 4 .