CanonEF 50mm f/1.2L USM

This is a really beautiful piece of kit. I read the reviews here and on the various web fora and was obviously worried about the oft mentioned "back focusing" issue, but went ahead and bought one back in October 2009. My thinking was that I simply loved my Canon EF 50mm f/1.4 USM and, as it was the lens that was most often on my camera, I really wanted the best possible in this class, especially as I do like to shoot wide open around the home and indoors using natural light rather than flash.Needless to say, the lens is a bit of a beast in terms of size and weight when compared to the other 50mm lenses Canon makes (I have owned the 1.8, 2.5 and 1.4 at some stage over the last few years). But I love the stability that weight gives to you when you hold it in your hands. Shooting wide open does take a lot of getting used to given the razor thin DoF, and I have made sure to use the centre point on my 5DMkII and 50D for best results. The results in portraits can be beautiful though with a slightly soft dreamy effect wide open (which has been improved with practice). The lens gets nicely sharp around 2.0 and tack sharp at 2.8. However, the whole deal with sharpness to me is second to the ability to be able to get the shot in the first place. That's where the 1.2 excels.Regarding the "back focus issue" I went through the process of microadjusting all my lenses using this relatively easy yet effective method explained here: [...]. It turned out my 50mm 1.4 was focusing much more than my 1.2. I think the 50mm 1.4 was something like -15 and the 50mm 1.2 was -3. It seemed to be a consistent issue with my primes (though to varying degrees). My zooms were all pretty much spot-on. Simply must be to do with the wide apertures of the primes as DoF becomes thinner and thinner. 1.2 is as wide as it gets these days.For sample images, please feel free to check out these pics: h[...]The biggest caveat with this lens is, of course, the price. For that reason, I would say the best deal in terms of picture quality, low light ability, etc. is the Canon EF 50mm 1.4 USM. I still love that lens and have kept it for back-up and for whenever I need to travel. It really is a great piece of glass for the price. The 1.2 L is just that bit better though and, for my business, that's what I need to have.Pros:Great low-light ability at lower ISOsFast focusAmazing build qualityContrast and colours are beautifulBokeh is gorgeous even when stopped down (with nicely rounded aperture blades)Feels nice and solid in your hands when shooting in low light without tripod1/2 stop faster than the Canon EF 50mm 1.4 USMCons:HeavyExpensiveTakes some time to master using wide openCanon EF 50mm f/1.4 USM offers comparable image quality (though half a stop slower and less well built).

I toyed for months over buying this lens. I was very happy with my 50 1.4, and was leery over purchasing this lens because of various focusing issues and mixed reviews I've read. One day, however, I decided to take the plunge and am so happy that I did.Hands down, this lens is my favorite lens and is absolutely fantastic. I've now owned this lens for 8 months and it is on my camera 90% of the time (that title was perviously held by my 35 1.4L). Using this lens at 1.2 is amazing; it allows you to really hone in on a certain subject which makes the image really strong and powerful; not to mention, delicious creamy bokeh and super sharpness. I am a wedding and senior portrait photographer and when I use 1.2 for a single subject face close-up, eyes are super sharp and colorful. Most of the time I use the lens at either 2.0 or 2.2, and images at those apertures are super colorful and sharp (much more so than the 50 1.4). With this lens, images seem to come to life and look super sharp, yet creamy and smooth at the same time. It's definitely brought my portraits up to a new level, and playing with the 1.2 this lens has is really fun!Construction is beautiful! It's solid and heavy, as every L lens should be. I once (gasp!) dropped this lens VERY hard on concrete while trying (and apparently failing) to do a quick lens change. It fell face down, without a filter, and I was devastated to pick it up and inspect the damage. I was SO happy and relieved to see it survived the fall without any damages to the external structure or internal function. Believe me, I did several focus tests to make sure the focus was still accurate and nothing was "bumped" out of place for the fall, but have not noticed any changes in focusing speed, color, or sharpness since the fall 7 months ago.I have not experienced the infamous focusing issues reported on some other reviews. I'm not sure if it was just my luck with a good copy, but it has not had any focusing issues on my 5D or 5D MK II. Focus was tack-sharp straight out of the box, and have not experienced any focusing issues since. Focus zips into place both quickly, and quietly.Overall, this is a fantastic lens and is worth every penny. Image quality and lens durability is more than worth the price. I only wish I would have bought this lens sooner!