Picked-up a SX50 today to see what all the fuss is about
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After charging the battery I managed to get out for an half hour to try some snaps.
Very early days yet but my early thoughts compared with the SX40 are:-
The SX50 is nicer to hold and the buttons are better placed.
I only took some shots at the full 215mm and was shooting at best jpeg so hard to be sure but IQ looks similar to the SX40.
The extra focal length is nice and IQ seemed to hold up well at full zoom.
CA is still very bad but no worst than the SX40 and it can be corrected in processing if you want.
Bust speed in continuous AF mode was slower than the SX40 as per specs but in non AF mode it seemed quite a bit faster.
Metering seems on par with the SX40.
Still not decided about the AF although it did seem a bit snappier than the SX40.
Shutter lag was certainly better than the SX40.
Still the same naff viewfinder but usable.
Attached are a few quick snaps I took this afternoon which I have not bothered to do a lot with in processing as they have absolute crap backgrounds but they do show that the Camera delivers reasonable detail at the full 215mm (1200mm FOV) setting. Both shots are crops of about 30% of the full image.