Originally posted by Anvh Sony A77
Electronic Viewfinder,(CIPA standard) 470 shots
Sony NEX7
(CIPA standard, EVF) 350 shots
Pentax K5
Optical Viewfinder, (CIPA standard) 740 shots
So i don't know what camera you use or how many batteries you've....
After seeing your comment, I retrieved and read the CIPA standard. It may not measure what you assume. A CIPA shot comprises:
- the shot
- a motor zoom operation (if the lens is powered)
- a 50% flash (every second shot must be flash at full force)
- 30s idle time
So, a camera w/o flash has a huge advantage here. Moreover, the speed by which the camera switches the display off during the idle time has a major impact (factory settings must be used).
A K-5 with no flash and taking bursts of shots will outperform CIPA by a large margin.
The K-5's 740 shots correspond to 370 min or 6h of continous operation! In practise, a K-5 easily does 2000 shots on a single charge. The time needed to compose an image by looking thru the VF is not specified by CIPA (read zero). But I guess, it is this composition time which draws most current per shot for a mirrorless camera.
Therefore, I consider the CIPA battery life to be a bad indicator for battery life comparison between an optical and electrinic VF camera. Another thing learned