Hi,
When the A7/A7r arrived I noticed a few things.
- The cameras have seven (7) as designation. It is strong indication it was not intended as top of the line. Sony uses nine (9) for that.
- The A7 used the same sensor that was used in the Alpha 99, but the A7r used simpler sensor.Higher resolving but less capability.
- What the A7 has and the A7r lacks are phase detection AF on sensor and electronic first curtain.
So I essentially felt the A7 was OK, but the A7r was a cup half empty and half full.
At the same time, it was very clear at that time that Sony is working on a 54 MP sensor, possibly using a new design.
Now, phase detection is important for good AF-speed, although contrast sensing AF is in general more accurate. Ideally both system would be used in combination phase detection for speed and contrast sensing for precision. The first electronic curtain is important for:
- Response time, shutter doesn't need to be cycled before exposure.
- Keeping shutter vibration down.
- Reduces noise
So, the A7r's lack of advanced features made me to stand by, also, I wanted to see the new lens program.
So what do I expect next spring?
- A new sensor with first electronic curtain
- 54 MP, hopefully
- Electronic First Curtain
- On sensor phase detection
- A niner series model with larger battery capacity
- An improved electronic viewfinder
- Three switch selectable presets (seems to be a 'niner' feature)
I am quite interested in the Loxias, mostly because I don't use large apertures, bust also because they are intended for manual focusing. Manual focusing is not so good with AF-lenses. But, an efficient AF system is something I also see as essential as manual focus using magnified live view is not always feasible.
I don't know if Sony delivers on my expectations, but that is the stuff I am waiting for.
Best regards
Erik