Canon 32mm F1.4 vs Sigma 30mm F1.4?

kalisti wrote:

thunder storm wrote:

Unfortunately i didn't find reviewers who have reviewed both.

not a review of both, but close as it gets I guess

https://www.dpreview.com/reviews/canon-ef-m-32mm-f1-4-review/2

i was surprised by the result, makes me wonder about the 16&56mm vs the 32mm

The opinion of the DPreview staff was flawed (not just in my own opinion, if you read some of the other comments below the comparisons). Despite the Silver Award with an 85% rating, the standards of comparison were skewed against the Canon lens. My reply over 6 months ago is in the comments section as I disagreed with the rating (despite it being a good one). By DPreview's comparisons of other lenses, this one ought to have rated 90-95%. Longitudal Chromatic Aberration is an expected aspect of a fast lens with a wide aperture. Especially f/1.4. And the EF-M 32mm f/1.4 lens controls this very well with optical design and optical coatings. That the reviewer would claim that this is a noteworthy negative listed under "what we didn't like" is ridiculous. As was their lack of comparison with the Sigma 30mm which displays it more prominently and with less control.
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The only thing I agree with by the reviewer on the negative listing is that the lack of an included Lens Hood is almost a crime these days. Canon ought to be ashamed for making an entirely new, vastly unattractive and mostly ineffectual lens hood exclusively for this lens. It's a waste of plastic, shipping and money when there's several existing alternatives (see the EF-60F lens hood as a viable alternative).
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EF-M 32mm f/1.4 STM lens - Round bokeh balls at f/1.4

EF-M 32mm f/1.4 STM lens - Cat-eye bokeh balls at f/1.4

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Cat-Eye bokeh
His defining of "cat's eye" bokeh as a "negative" aspect of the lens ought to be noted when Canon's finest lenses are just as capable and willing to produce the same. Cat Eye bokeh shouldn't be considered a negative trait of any lens and is related to lens character, which in turn is the result of the parameters of the lens design and focal lenth etc. A Cat-Eye effect is usually generated when light enters the lens and aperture mechanism from an oblique angle. Canon's much lauded EF 85mm f/1.2L II USM lens will produce Cat Eye bokeh and nobody bats an eyelid. When was the last time you heard of someone complaining about Cat Eye bokeh from that lens? Or the Sigma 30mm for that matter - which produces the very same. Lenses with moderate to wide angle FOV are the ones that tend to produce Cat Eye bokeh and it's in their nature to do so. Especially when their iris aperture (inside the lens) is obscured by the lens barrel if viewed from the front at a slight angle. The more recessed the aperture is, the more likely you will see an ellipsing of the bokeh highlights.
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EF 85mm f/1.2L II USM lens - Cat Eye Bokeh

EF 85mm f/1.3L II USM lens - Cat Eye Bokeh

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It should be noted that the reviewer uses quite a few cameras but that his preferences lean towards Nikon and other non-Canon brands via product endorsements. Regardless, there was no need to vote the 32mm f/1.4 lens down for "cat eye bokeh" or even for a lack of Image Stabilization with a lens that is so bright and fast to begin with.
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My own thoughts back when this comparison was made