Sigma 50mm F1.4 EX DG HSM A-mount lens review by godsakes
|godsakes#10132 date: Apr-21-2012|
flare control: 3
|ownership:||I own this lens|
|compared to:||Sony 50mm 1.4|
Minolta 50mm macro RS
(Near) silent HSM
|negative:||Prone to flare|
CA at wide apertures
Moderate AF speed
|comment:||The 2 things which really stand out on this lens is the wonderful bokeh and colour. |
Wide open the sharpness is comparable to the sony 50mm f1.4 for all the talk of this being the sharpest I see no real difference wide open, in fact the sigma seems to suffer marginally worse CA at f1.4-2 (though not a real life issue, only noticeable when pixel peeping), stopped down F5.6+ this lens noticeably overtakes the sony and reaches macro level sharpness at that peak it is exceptional.
Unfortunately it seems to be noticeably more prone to flare than the sony.
I love the perks of the HSM motor (near silent and MF override) but AF speed actually feels slower than the sony (suppose it has more glass to move). AF accuracy also appears to be less consistent (say 2 times out of 10 the sigma will just totally miss focus and be fine the rest of the time) which seems bizarre as the HSM on my sigma 70-200mm is probably the best lens I have for AF accuracy.
With regards to micro-adjusting... annoyingly the lens ID clashes with my sigma 70-200mm 2.8 mk2 so I can't store both those lens adjustments at the same time, big annoyance if you have other sigma lenses.
Needless to say but this is quite a large and heavy lens, it's not so bad on a FF body but on a APS-C body it would feel very unbalanced (for a sub 100mm lens anyway).
My copy is pre SLT but thankfully still worked on my friend's A77
The sigma is a great lens but if you have the Sony already it does not offer huge gains and it comes with noticeable drawbacks making such a upgrade a bit of a double edged sword. That said lenses such as the much loved minolta 85mm suffer from even more severe drawbacks that doesn't stop it having a die hard following of people who love it's image characteristics and I suspect the sigma 50mm will be no different.