| Latest Review Posted | Sigma EX DC J 10-20mm F4-5.6
This lens captures my interest and it's hard to put it down. There were two available at a reputable online store.
I chose the " mint " sample and immediately checked for decentering. It was decentered. So I then spent days uming and aring Should I return it and try the other one?
Whilst I was making my mind up I couldn't put the lens down as I was getting super sharp but also amazing compositions since it has small minimum focus distance. Cheekily I held on to it and ordered the second sample. This one turned out to be a later version, I think, because the Sigma lens cap was now a centre pinch style.
This one doesn't have as much decentering as the other one but it seems a bit less competent at 10mm ( quite soft towards both edges). At 11+ it is superb ( as the other one was really apart from the edge issue ) .
So I am wondering if maybe Sigma reset their assembly machinery at around 2008 when according to reports the centre pinch cap was introduced.
So I kept the second one and returned the first.
My thoughts are ( and they are guesses ) most of these lenses are slightly decentered but the post 2008 ones have been quality checked for this or at least the assembly process was modified. In so doing the lenses might be slightly less good in other respects for example a bit of field curvature.
Anyway, what is indisputable is that this lens is capable of transforming your photography and has had more impact on my hobby than any of my other lenses.
It's a great ... |
