I've just started to discover the beauty of old manual-focus glasses; put the Helios 44M-4 for the beginning ... then Jupiter-9 ... then few Takumars ...
Modern lenses just can not hold a candle to the old, well built manual focus lenses. Nice collection you have, and beautiful pictures to show their potential.
Great start, Marek - we can always learn by going back and trying new things out...well done in starting this initiative, and good luck! I'll be coming back to see how you're getting on :o)