[felix]

…but visually the detail capture looks better and cleaner than my 7D on my usual subject matter (comparing via having used C1 here for 7D which is no slouch in the rez dept.)....and strangely the bokeh looks smoother too....must be my imagination

….anyhow this all might be useful for pz…

 

The whole discussion is a bit off topic, but the most relevant aspect for lens testing should be sensor resolution and in this regard the 70D is hardly a significant upgrade over the 50D (15 to 20 megapixels is a ~15% increase on either side if I am not mistaken). Lenses that perform well on the 50D will perform well on the 70D. Same thing is true for 5DII & 5DIII and basically all other test cameras on photozone - no need to update.