|Closest Focusing||0.5 m|
|Max. Magnifcation||1:7.7 (0.13x)|
|Filter Size||52 mm|
|Diameter x Length||65.3 x 50.5 mm|
|Weight||380 gr (0.84 lb)|
This lens was a real disappointment. It might just be my copy... but the one I tested was disappointing. Whether close, against a flat board with ISO lens test charts, medium distance or focused to infinity, it was only "OK". I compared it head-to-head with a Canon FDn 50mm f/1.4. The f/1.2 L was better (colour, contrast, resolution) at f1.4 through f/4. However, from f/5.6 on the Canon FDn 50mm 1.4 was as good, and even better than the "L" by f/11. Don't buy this lens for its performance at f/1.2 (soft, lower contrast).
Perhaps its just my copy - but at certain apertures it doesn't seem to do that great (tiny patches of CA). My girlfriend's old FD 50mm 1.4 has a richer bokeh, richer colours, richer contrast. My 50mm f1.2 L gives an incredibly even image across the frame at all distances - perfect for copying schematics(!) or something like that. But while a joy to use - the results just never seem exciting like you might expect if you've used an 85mm 1.2...
Good build, smooth focusing, looks fab on the outside, sharp results --- but not strikingly sharp. At 1.2 it is a tad soft of course - if say an eye is in focus then its eyelashes aren't - so I don't use it wide open much.
Could be a good lens for astronomy or similar but otherwise I'm not sure its worth the money.
Might be just my copy though...
A good, but not great, Canon aspheric high-speed lens. Over the years I've had the good fortune to own this lens and the FD 55mm Aspheric. A side-by-side comparison, with shots taken at F1.2, show that the 55mm Aspheric delivers better image quality. Build quality of the 50mm L is typical FDn, meaning that it is not built to the high standards of the earlier breech-lock models. The best thing about this lens is that it's much smaller and lighter than the 55mm Aspheric.
Don't misconstrue my comments. The 50mm L is good lens, one that most people will probably love, just don't expect the best image quality at f1.2, you'll need the 55mm Aspheric for that.
I bought a copy on ebay, a bit battered and with a slight mark on the front lens but it has never let me down. I use it with a Canon A-1 and adapted on the Panasonic G1. The results on the G1 are very good. It's not extremely sharp at f/1.2 but stopped down a little it's excellent. It's my favorite lens for indoor work and portraits on the G1.