50mm lens and body manual questions

[vmk]

I am thinking of buying a new camera body with 1,5/50 lens.
(a) How can I tell if the lens is the "2,8" or "1,5" optimized version before I buy it, perhaps by its serial number?
(b) Is there a Service Manual for the camera body I can download or buy?

 

[italy74]

Hi VMK,

My suggestion is: ask Mfogiel
if I'm not wrong he should be able to answer you, he did some kind of comparative tests between these lenses time ago

 

[Roger Hicks]

You can't, except by buying new from a reputable dealer or second-hand from an even more honest dealer/private individual. There is no reliable serial number correllation that I am aware of. There are three cams and any can be selected during assembly or repair.

Which body do you want a manual for? And why? What do you need to know? (Someone here should be able to help you.)

Cheers,

R.

 

[J. Borger]

Might be me .... but i still have not figured out what my sonnar is optimized for (did no formal tests though!).
If i had not read on this forum about the focusshift i would not be aware it exists.
Either the whole issue is blown out of proportion or i have an extraordinary copy.
I do not think about it in day to day use.

Fabulous lens BTW!