[davidmanze]

CA will not be a major issue, will it? The issue with no coatings is refections, not CA. And the lenses from the 60's from Pentax and Nikkor to name a few, were not much more advanced concerning CA, and people happily use them for digital colour photography today too.

 

So, just don't shoot with them into the light, and you will get pretty good results, no doubt.

 

5cm f2:

http://www.a7camera.com/zeiss_50.htm

4cm f2:

https://www.flickr.com/photos/penspeed/s...803392097/

3.5cm f2.8:

http://forum.mflenses.com/carl-zeiss-jen...72268.html

13.5cm f4:

https://www.flickr.com/photos/byronlau/12883079425/

I wasn't referring to CA for the lack of coatings!  Because photography was predominantly B+W corrections for CA was less of a criteria, obviously it will depend on each lens's particular design.

   Do you "really" think I don't know the purpose of lens coatings? ??

   There's a massive difference in lenses between the sixties which may seem like the distant past to you, (I was nearly/almost an adult then) and the thirties, which even to me seems like the distant past, coatings opened the door to more complex lens design enabling the use of more elements without the reduction of contrast and internal reflections.

 I consider the lenses of the sixties, though I think you are referring rather to the seventies as modern lens design.