[Leica] CODING???? is it really a necessary evil?

[tedgrant at shaw.ca (tedgrant at shaw.ca)]

Hi Crew,
CODING?  for M series lenses on an M8 or whatever?

Here we go, stupid question for the week. Is the coding just the usual 
techie number stuff? Or is it absolutely necessary? Do major good things 
happen if I do have them coded? Or major bad things happen if I don't?

I have a CV 15mm & 21, both cut beautiful images. a Leica 35 Summilux, 90 
Summicron, & a Noctilux. Did have several others... sold them.

Not one has been marked other than maybe me banging them on something.

So I have tons of images shot with any mixture of these lenses, several have 
been published, several are for the new medical student book. But they all 
look cool and blow up to  make beautiful prints 18X12 on 13X19 fine art 
paper. Colour or B&W.

Clients have been very pleasantly surprised, I am quite happy with the 
results, nor do I have any qualms about the "LEICA" looking quality nice and 
sharp!  So? What am I doing wrong that I acquire such wonderful quality 
without seeing any weird looking effects in the photographs without coding?

Or am I just bloody lucky?  Yeah I know it could be me not understanding the 
techie stuff as usual. :-) But then if I did that techie kind of stuff for 
the past 60 years I wouldn't be where I am today.

cheers,
Dr. ted :-)
PS: Or is it merely another money making line by Leica to have older lenses 
returned for coding because some techie guy in Wetzlar on a test bench saw 
three microns difference and freaked out! Therefore all coding is necesary?

Last question.
"Can you actually see the difference in a print with the naked eye, coded or 
not?? If not? then like... "WHO CARES!" :-)