This is a hands-on comparison (with sample photos) of the 25mm f1.2 Pro lens and the 25mm f1.8 lens from Olympus, both made for the Micro Four Thirds system. It was made for those of you who are thinking of getting one of them or upgrading to the Pro lens and would like to find out more details.
The E-M1 Mark III and the 25mm f1.2 lens were on loan from Olympus Romania.
You may want to watch this video, where I compare the E-M1X, E-M1 Mark III and the PEN-F. You may also be interested in this video, where I talk about the macro converter that can be used with the 25mm f1.8 lens.
This is not a paid review. It is my honest personal opinion on this matter.
You can watch this video directly here and here. I am also including a gallery of the sample photographs presented in the video.
25mm f1.8 lens 
25mm f1.2 lens 
25mm f1.2 lens @ f1.2, 1/125 sec, ISO 400 
25mm f1.2 lens @ f1.8, 1/125 sec, ISO 800 
25mm f1.8 lens @ f1.8, 1/40 sec, ISO 250 
25mm f1.8 lens @ f1.8, 1/125 sec, ISO 800 
25mm f1.8 lens @ f1.8, 1/125 sec, ISO 5000 
25mm f1.2 lens @ f1.8, 1/125 sec, ISO 5000 
25mm f1.2 lens @ f1.2, 1/125 sec, ISO 2000
Released 28-02-2021
Thanks for watching!
Raoul Pop 