Here's one of mine, but it's a postwar coated example: Nettar 518/16 with a 75/3.5 Novar. The film is Provia 100F. I've also shot, but not yet scanned, a couple of rolls in a 516/16 with an uncoated 75/4.5 Novar---my feeling from eyeballing the results is that the colour handling of the two is actually more similar than different, with the uncoated lens not unreasonably delivering a bit lower contrast.
I agree with Ian---you have to do some of your own testing, especially with Novars, which I gather were sourced from several different manufacturers.
San Diego, CA, USA
The lady of the house has to be a pretty swell sort of person to put up with the annoyance of a photographer.
-The Little Technical Library, _Developing, Printing, And Enlarging_
"Color correction" is NOT intended for "color fidelity; it is done to get light of different wavelengths to all fall in the same place on the film. I have seen poorly corrected lenses where the edge of an image will vary between ~ orange (something like that) and blue at the extremeties of the field.
Edge definition will be affected - on black and white film, as well as color.
I shoot color negative film through my (coated) f/3.5 Novar Ikonta. It is what it is: they were consumer lenses, not designed for crazy enlargement, and you won't get good results shooting ANY triplet wide open. Stop down to f/8 (maybe f/5.6) and the results are perfectly acceptable for web scans. No, it's not sharp all the way down to the grain, yes, the contrast isn't the greatest, but I paid $25 for it and I'm satisfied. Missed focus is a much bigger problem than lens quality.
The enthusiasm for Novars isn't because they are great lenses but because they are an awful lot better than one would expect. The 6x6 or 6x9 negative size is a big help in image quality - as a result the pictures from a Nettar can compare favorably with the best 35mm equipment.
Yeah, 35mm is 24x36, so 864mm^2 image area. 6x6 is 56mmx56mm image area, so 3136mm^2, 3.6x the area. If a good 35mm lens delivers 80lp/mm, a folder needs to deliver 22 lp/mm to match it. The 6x6 negative will be easier to actually get the detail off of (drum scans = $$$) and there will be less grain. Of course, there's less depth of field, unless it's a Zeiss film flatness and standard rigidity will be an issue, and guess focusing adds another way to lose a shot.