Are there any benefits of going with modern lenses over optical, outside of Image stabilization and auto focus? Prices on the legacy lenses seem very affordable, but am I giving anything up going legacy versus modern.
The only reason to buy old manual lens is if you dont have any possibility to get modern native lens. New lenses are just way ahead.
1. Autofocus. Its just so nice to have AF in lens that it beats every other argument.
2. Eletronic aperture. Correct metering. And you can look what aperture value was on every shot. You cant do that with manual lens obviously.
3. Optical quality. There are very few old lenses that can be on par with modern ones. And I bet there are no old lenses that can tie with new mirrorless optics. Resolution -> sharpness, CAs, distortion (and its auto-correction) etc. Modern is modern.
4. Size and weight. You just cant find another 30/2 with same quality and size as Samsung's. And all that for 200$ only.
Legacy lenses are tempting, but you will end with native lenses anyway. So I recommend you to not waste your time. Samsung's lenses are so cheap that there is no reason to look at old optics.