There are 2 lenses in that CR1 lens roadmap which interest me:
- EF 50 1.8 IS, status “prototype”, has tag “spring 2013″
- EF 60 L IS lens tagged “prototype”
I had the 50mm f1.8 but sold it recently as I didn't use it much, and the focus was not consistent or accurate enough for my needs. Though it performed much better on my 7D than on my 350D, it didn't cut the mustard. I use my Canon 100mm USM macro for candid portraits, which does well (fast, accurate, consistent focus, and still v good subject isolation).
So I'm on the lookout / in the market for a fast prime around 50mm / 60mm (I don't want to get the 85mm f1.8 - though I'm aware that's a good lens. The 50mm / 60mm focal length suits my style more, and on my APS-C cameras.
If a new 50mm f1.8 would come out with improved focus (ie true ring USM, with full time manual focussing) - I'd get it (I don't 'need' IS, but that would be a bonus). It would be good if it was relatively inexpensive (ie below $600 Aus) with decent build quality (eg similar to the Canon 100mm non L macro USM, or the Canon 80mm f1.8 USM) - that's good enough for me.
Most importantly, I would need it to have superb IQ wide open (ie sharp, contrast and good bokeh).
The 60mm L option could be good (if it's a 1.4 that would be even better - but hopefully it wouldn't be HUGE.... I prefer most of my glass to be lighter, where possible). I like the size of the current 50mm f1.4..... But if the 60mm L would come out, being an L lens, it would understandably probably be 'larger'..... Hmmmm. Again, I'd like superb IQ wide open and USM focussing. IS would be a 'bonus'.
Let's see!!! Well, there you have my thoughts / hopes regarding the mentioned lens / possible lens roadmap!