Here's my very quick review of the 35/1.8 SAM on NEX5:
Pros:
- Cost effective lens with A-mount adapter. Still cheaper than a M-mount 35/1.4 with M-mount to NEX adapter
- AF possible, AF lock is accurate with no apprant focus errors (though I expect this with CDAF)
- From a rough gauge of sample shots, seems in the ballpark range of expected sharpness for a entry/mid prime lens
- Not too big, around same length as 18-55E mount kit, though a bit fatter
- Nice close focus distance of 23cm
- Good for low light photography
Cons:
- AF while possible is slow. It will take approx 5 secs to lock on (It does a 2 sec focus, followed by a 3 sec juddering focus) Don't expect to use this for more than stills or simple portraits/group shots
- AF is not optimised for video, its too noisy for video though will be fine for general shooting. (To set expectations, the NEX shutter is louder than the lens focus)
- Plastic lens mount rear
- Build quality does not feel great
- AF/MF switch needed, no full time override
- Not as tiny as an NEX with M-mount lens
Overall however, I really like this lens for the 52mm focal length equiv and that nice thin DOF, it does make a difference. I will probably shoot with this as my main standard lens and use the 16/2.8 as a prime wide.
Good lens for seasoned enthusiasts, but the cons may make it less palatable for novice NEX users. If you have a A-mount APS-C SLR though, this is a def must have lens imo.
Some sample shots below. This was done after a long day at work so mostly shot in dim lighting indoors handheld (Had to handhold the kit lens at ard 2/5sec, but the IS works v well) at ISO1600 or ISO3200. Jpeg straight out of cam no PP : P
Close focus on my keyboard
Rough comparison with 18-55mm shot at 35mm F4.5
Another 35/1.8 SAM shot (Shot at F1.8)
Yet another 35/1.8 SAM shot - Thin DOF (Shot at F1.8)
35/1.8 SAM shot - Thin DOF, focus is on the lens cap letter 'N'