Yeah I was just messing with you, this thread is 200 pages long.
Briefly, pros and cons:
M- smaller, adaptable to other systems. Possibly lower T stop. E- you get EXIF info, and a pointless digital distance scale that you can't disable unless you put packing tape over the contacts. E- smoother bokeh and less FC on Sony. E- aperture you can de-click for video. You can also do this with the M version, but you have to take off the name plate, take out the aperture assembly / front ring thingy and remove the 2 tiny ball bearings. It's actually super easy to do, the hardest part is not losing the ball bearings. On APS-C it'll be a different F9V, closer to 60mm,and it won't have the same (apparent) shallow DOF.
mainoo wrote:
Thanks for your response.
I had read the thread. I came across 2 people who had experienced issues with. the electronics on the 40mm. I called Robert White who aren't aware of this as an issue. I remain unsure as to whether it is an established (as in more widespread) issue or not and would appreciate more input from anyone else who has seen it. Would you mind pointing me at the places in the thread (and I've scanned all its pages) where the answer may be found?
As my third paragraph indicates, I am asking whether aside from the issues I mention (all gleaned from a thorough reading of the thread) there are any others that should make me think twice about using the VM mount on a Sony. I still would like to know.
Further I wanted to know whether there were any users on APS-C - again, a thorough reading of the thread had not turned up a single APS-C user (unless I missed something). I think that is a reasonable question to ask before I plunk down my dosh..
I thank you, once again, for your intervention.
imagesfromobjects wrote:
All th answers you seek are here, just read the thread.
mainoo wrote:
Hello,
Need your help making a decision on whether to get the VM or E mount version of the 40/1.2.
I see that there appear to be issues with the electronic contacts (distance scale, etc) - is this a confirmed issue?
Aside from the expected loss of functionality linked to the lack of information transfer when using the VM mount on a sony, are there major issues experienced by users of VM on sony? I read about field curvature because of the sony stacked sensor leading to corner issues (which don't overly concern me as I mainly shoot portraits and street and on an A6500). Not too concerned with bokeh quirks either (I want the speed for low light).
I see most users are FF - input from anyone with experience shooting this lens on APS-C (particularly A6500) would be appreciated.
Finally, any reason (aside from subjective preference) to prefer the 50 over the 40? I seem to prefer the 40 (both the FL and the images I have seen).