I own the A7 with the LA-EA4 and find the focusing to be as fast as the A77 & A850. Having tried my Minolta 200mm f2.8 G, Sony 50mm f1.4 and the Sony 70-300mm G SSM at various focal lengths, I find no appreciable focus speed differences. Having never tried the A7ii I am at a loss to understand why you think the A7 is slow? Perhaps it has something to do with the LA-EA1 & LA-EA3. Using the FE 28-70mm and the CZ 24-70 f4 the A7 is at least as fast as the Alphas. The A7 has wide, Center and Flexible spot. I use Flexible spot and DMF which together give me an ideal combination. To my knowledge, none of these settings affect the focus speed.
From what I have read the A7ii and the A7Rii have been improved (with the possible exception of focus speed as previously noted above). However the price of these upgraded cameras is ridiculous (somewhat due to the decrease in value of the Canadian $). I paid $800 CAD [$600 US, 400 GBP] for the near mint CZ 24-70 f4 from a friend and with the retail price at $1200 CAD, I feel I got a reasonable bargain. However the A7Rii is $4000 CAD retail. No bargain to be had there, especially after you add the sales tax.
Firmware revision 2.00 for the A7 claimed to increase the startup speed only. For the life of me I cannot discern any speed increase. Has anyone?
« Last Edit: November 19, 2015, 08:59:33 PM by AScot »
Sony A7, A850, A77, A700 || Sony>> 70-300G, 28-75 f2.8 SAM, 16-80CZ, 50 f1.4, FE 28-70 OSS, FE 24-70CZ f4 OSS, LA-EA4 || Minolta>> 300 f4 G HS, 200 f2.8 G HS, 100 f2.8 (D) Macro, 50 f1.7, 28 f2.8, 28-135 f4-4.5, 70-210 f4, 500 f8 Reflex, TC x 1.4 HS, TC x 2 HS. || Sigma 21-35 f3.5-4.2. || Tamron SP 24-135.