Viewfinder/Rangefinder:
As one of the biggest features of Canon V and VI series rangefinder cameras (except Canon P), the viewfinder has three selectable modes/field of view: "50", "35" and "RF"(for critical focusing). You can turn a cogwheel - namely "Viewfinder Selector" - near the eyepiece to select the one you want manually.
The magnification of viewfinder is x0.72 for 50mm, x0.4 for 35mm and x1.4 for RF. The view of RF mode is oval-shaped, so you can't really use it as a 135mm FOV for framing as some online posts suggested.
Unlike Canon VI series cameras, none of the viewfinder modes on L2 have bright frame-line nor parallel correction. Talking about actual using of viewfinders, I actually prefer good "peephole" type to bright-line type with too many cuts/gaps in between, and I must say L2's "peephole" is really good. I'm an eye-glass wearer and prefer shooting with glasses on. The eye point of L2's viewfinder is long enough for me too see the whole frame, especially the 35mm, thanks to the low magnification. I don't mind soft edges of the frame and I will definitely use this camera more due to the nice viewfinder. Currently it has the best peephole type viewfinder I've used. The next to best I've seen is the one on Zorki-6.
And, don't worry about scratching your eye-glass with the viewfinder selector cogwheel, which you might have read somewhere online: the viewfinder eyepiece protrudes a bit, so your glasses are very unlikely to touch the cogwheel.