I was thinking to get A lens 16-50mm f2.8 or zeiss 16-80 with the adapter. I just wonder if the OSS really make any different. Not much article on internet mention about this though.
Keep in mind that OSS didn't exist in the past and great photos were still taken. Some articles I have read that OSS doesn't really help much if your shutter speed is greater than 1/(focal length). (e.g. 1/125 shutter speed when using a 80 mm lens)... In addition, OSS doesn't help with subject motion blur.
In addition, if you look at professional grade FF lens from Canon and Nikon, many still do not have stabilization and some folks claim it affect image sharpness too. IMHO, its nice to have but not really necessary if you know what you are doing.