Jorgen Udvang
Subscriber Member
For some purposes, the A7R is the superior camera, but comparing the smallest full frame interchangeable lens camera with one of the largest will obviously give dramatic differences as result. The only thing those two cameras have in common is the sensor and the fact that the shutter release is placed on top of the camera, so the comparison is only valid if weight and size are the main criteria.My comparison is between the D810 vs the A7R, since both are 36mpx.
D810 = 980g (batt + card)
A7R = 465g (batt + card)
A7R battery weighs about 42g
You can do the math.
As for the number of batteries, based on my actual field usage, I am getting around 250+ per charge. Therefore, with 2 batteries I am getting 500+ per day of shooting. Therefore, if I were to carry 2 X A7R, I can shoot 1000+ shots per day. The actual number of images I shoot per day is much lower. I am not one of those that shoot machine gun style.
I suppose it's only a question of months before the A7R will be replaced by an A7R II or A9, which will probably change the tables again. Hopefully, the A9 will have a larger battery.