[davidmanze]

I don't like how it renders... Not my choice for the focal length for dedicated close up lens.

    Canon's announced a super compact mirror 1.1  macro lens with the same 60mm FL and aperture with AF and IS for half the price of the 7 artisans version ....... weighs 50 gms and is 3 cms long ....... 

  apparently the bokeh is spectacular  .......... doughnuts a gogo !!

....... should suit you down to the ground BC ! .......... 

(sorry I couldn't resist that one ......  ........ )

Haha, thanks. I somehow have missed the rumours about that 60mm mirror macro lens, I am already excited! Especially if it is an APS-C lens, of course!

But what I dislike is the somewhat smeared quality as soon as it gets blurry in the background, combined with the double lines it produces in these images.
My 55mm Nikkor does have an outlining issue that results in some double lining stuff, but that ancient little lens does not smear like this one appears to do.
My Tamron AF 90mm f2.8 Di Macro also renders nicer (although it does have its peculiarities rendering-wise, like a weird type os "smearing"), similar FOV on FF.
And my quirky Ultra Micro Nikkor 55mm f2 is in a totally different league in every sense.

 ..... please to see you took it in the manner in which it was meant !!     

 ....... one of the best rendering macros is the Sigma 150mm F2.8 EX HSM 1.1 ....... no doubling ........  good focal length too.

Markus wrote of it :
The quality of the bokeh (out-of-focus blur) is a primary aspect for such a large aperture lens. The Sigma is capable of delivering very pleasing results here.

Bokeh is a bit rough and nervous in front of the focal plane, but very smooth behind it, even in the transition zone (where many lenses struggle).

Background highlights are evenly filled with only a very small amount of outlining wide open. Mechanical vignetting affects the shape of the highlights towards the borders at f/2.8 and also at f/4.

  Rock that very smooth background  !