Brothers in arms, separated by time

[mutusorin]

this are 2 x Pentacon 135mm 2.8 Preset

So I got the left one today for 35 euros. it is in perfect condition, just some minor dust particles inside.
The one on the right I've got some months ago but it has some marks on a lens from a fungus that I cleaned.
I was wondering if anyone made a comparison of the different versions of this lens. And maybe some knows the history behind them and the years they were made.
I will make some test shots and the weaker one will get sold.


#1


#2

[Pancolart]

I think the left one has coating a bit more stable and resistant to cleaning.
No other major difference.

[mutusorin]

What I like at the newer version is the focus ring. It's more grippy