Dear Michael
regarding flash exposure of A65/A77 it took me a while to find out how the camera works and what settings will suit better for certain shooting conditions.
Generally I found out that the flash indeed is set to a somewhat higher level compared what I was used from A55 or even the old Minolta 7D.
One clue to understanding is the way the A65/A77 try to balance ambient/natural light with the flash light. It
seems that the camera and its exposure algorithms are setup up to gain more of the ambient light, so that
parts of the scene which are not reached by the flash are not underexposed, which could happen with A55. In this regard I have found flash exposure of A65/A77 indoors (with poor lighting) better most of the times than on previous models.
When using A65/A77 as pure fill in flash outdoors (brighten up shadows) it seems however that the new algorithm produces images with less balanced results, in fact the parts which are lit up by the flash seem to be overexposed and I too end up using flash compensation.
On close inspection of the images however I found out that most of the images which seems too bright are not overexposed in a technical aspect (burned out highlights which can not be recovered) but just very very bright. Too bright however to result in a natural looking fill flash image. So what I do now is to make sure I use the following settings for outdoor fill flash work:
- set ISO to low values, avoid high settings (please note that there can be situations where the flash output
already has reached its lowest possible setting and therefore flash overexposure will happen. E.g. when using F2, ISO1600 and 2m distance required GN would be 1 - which is not available)
- enable High Speed flash (custom setting of the flash)
- use flash exposure compensation
- in addition to this basic settings I also found out that using a flash diffuser will give me best results (set
metering to TTL instead of ADI)
I have attached a comparison of a basic setup:
from left to right (A65 using HVL-F58 as external flash, P-mode, ISO 200):
0 flash compensation, -1 flash comepnsation, -0.7 flash compensation + diffuser
For my taste the one with the diffuser looks best, other might even prefer the "paparazzi" style harsh flash of the standard setting.
For critical exposure I always use RAW format as it gives the opportunity to adjust exposure to a large degree in post processing. The RAW files from Sony contain enough headroom to enable recover of highlights even from flash images which seem to be overexposed.
I hope this hints are helpful for you.

Message was edited by: cmosse