Another pairing of cameras with matching shots for comparison – the Portra scans lean cool, and the Gold scans are warm. The 50mm f/3.5 SSC Macro is still pretty sharp at f/3.5 compared to the Helios-81 that falls off fairly quickly at f/2.
Canon T90 + 50mm f/3.5 SSC Macro + Kodak Portra 160
Nikon FM3a + Helios-81 MC 50mm f/2 + Kodak Gold 100