Sigma 10-20mm F3.5 EX DC HSM A-mount lens review by tobyjay
|tobyjay#6350 date: Nov-9-2009|
flare control: 5
|ownership:||I used to own this lens|
|compared to:||Sigma 10-20 f/4-5.6|
|price paid:||Grey import - Ł495 inc tax|
Consistent IQ across zoom
Flare control excellent
Clear pictures with no cast
Very little vignetting
|negative:||Corners soft at f/3.5, f/4|
Not full frame
|comment:||I had a couple of copies of the previous (cheaper) version and was never satisfied with the clarity and colour. They were not totally sharp but had sufficient contrast to give an impression of being good in terms of resolution. Also, I noticed vignetting at 10mm f/4 and always had to stop down for cleaner pictures - which slowed the lens down indoors.|
This new version solves all those problems, plus it has very fast focusing. The HSM is quieter but not silent, and can be a bit fidgety in low light.
f/3.5 pictures are very usable, meaning it can be handheld at say ISO1000 indoors. Flare is not a problem, although the A700 will blow out bright lights and windows. Highlight Recovery tool can help.
I've done three paid shoots with it and the distortion control is very good, better even than the original version.
Colour is clear and very well balanced using A700 AWB. It produces good bokeh too. Exposures have been very accurate compared to previous version.
Sharpness is better than the previous version, but I can't give it a 5. It's very good for a lens with such amazing spec though! 10mm to 20mm all at f/3.5? Pretty impressive.
Great build, feels compact and solid without being heavy.
I am upgrading my camera body to a full-frame so this lens has to go already. I've been spoilt by the IQ from this 10-20 which means I can't go back to a clunky, flare-prone 15-30, I've never been sold on the 12-24 and so the only attractive upgrade in terms of speed, AF and IQ is to buy a CZ 16-35/2.8 at great cost. This puts the value of the wider 10-20/3.5 into very sharp focus!
Highy recommended lens.