This lens serves as an alternative coating for warmer tones. Super Spectra Coating is the standard coating for every other lens. This lens has the FL coating. Canon made other FL lenses such as the 19mm f3.5 which is one I find impressive. I sought after this lens to have a good backup to the 50mm f1.2 and to mix seasonally with the rest of the lenses.
I felt that shooting night time scenes would be nicer with this lens because the warmth will take away from the digital sensor’s noise pattern and likely create a warmer image .
This entire lens set is in EF with focus, iris and zoom gears and 77mm inner diameters and 80mm outer diameters.
They will cover Full Frame, Super 35mm and m4/3 sensors.