EDIT: the testing below is limited to evaluating performance within the confines of the sensor resolution on the ist DS, which is 40lp/mm. The conclusion I have come to, now I own a 200mm prime, is that zooms are for practicality, not IQ....plus, the arithmetic looks wrong below. I think the lp/mm are obtained from the figures divided by 50. This whole thing is limited by the fact the target was illuminated by daylight and has a relatively low contrast.
It looks like the Viv S1 takes the lead, using a digital camera to take the photos. I've been shooting with the Vivitar S1 and the Viv 200mm f3.5 by Komine in K mount against the M 135mm and M 75-150mm zoom.
The distance was 6.6m to the target, using a tripod and 2s self timer. f5.6, sunny white balance and 1/3000s. When distance is taken into account, all the lenses achieve at least 90lpmm, with the 135mm reaching 100lpmm.
Converting the numbers on the photos into lp/mm is done by dividing by 6 for the 200mm, 4 for 135mm and 4.5 for 150mm. But its easier just to look at the photos. The Vivitar S1 appears the sharpest, beating even the 200mm prime, but it also has a strong blue colour, particularly noticeable when lined up against other lenses.
Vivitar S1 of A4 test target at 6.6m
Vivitar f3.5 200mm K mount by Komine
Pentax 75-150mm at 150mm
Pentax 135mm
I sold the M 80-200mm as I could not justify holding on to all these lenses.