Reviews and Problems with Sigma MACRO 70mm F2.8 EX DG
Showing 1-6 of 6
Not a Nikon, but for about 20% of the price, perfection
1 May 2010
Summary: It's a great lens for mid-lit situations, like in a room with normal lighting conditions, but at night, with lamps on, it's still slower than a Nikon 24-70mm with a fixed f/2.8. For the difference in cost, it's a winner. There are only a few things to be concerned about before making the purchase. 1. The focus is a bit loud. 2. The contrast and sharpness is a bit lower quality than a nikon lens 3.
It's good, but it's *not* a constant f2.8 lens (edit: most Macro aren't!)
Peter Chenoweth, Amazon
7 June 2009
Summary: Bought this to pair with my Nikon D90. It's a sharp lens that's very pleasant to use. As the other reviewer said, it's a 'nice' length on an APS-C sized sensor, ~105mm. Sharpness is on par with the venerable Nikkor 50mm f1.8, IMHO. So that's great. Not unexpected though, as this is supposedly Sigma's sharpest prime lens and it's a Macro lens, which by definition has to be tack sharp. Build quality seems very good too. All in all, it's a nice lens at a good price.
Summary: I must qualify my review by stating that shoot macro lenses in manual. I shoot flowers. I never goto 1:1. I'm using it on a Nikon D80 and a Nikon D300. The Sigma 70 is a nice lense. It's well built. It handles well. Color is acurate and contrast is good. My only issue with this lens is it is not sharp at F18 to F22 which is common amoung many macros. If I stay at F16 with moderate magnification then it stays sharp.
Summary: I didn't get this lens from Amazon, but I buy a lot of things from them and it is probably the best forum for review writing. I purchased this lens from a local photography chain in Russia and although it is probably my fault for not checking better in the store there was a serious issue and now I must deal with Sigma's authorized repair facility to get it corrected.
Summary: I have been searching for a really high resolution macro lens for a Sony NEX camera and was recommended this lens. I compared it with my Sony alpha macro lens (DT 2.8/30) which is good but not quite as good as I would like. The Sigma lens performed equally well as the Sony lens in resolution and the subjects were slightly better lit with the Sigma lens, it having a slightly higher numerical aperture.
Summary: Sigma hat mit dieser Festbernnweite sicherlich eine Marktlücke getroffen. Als Makro ein gutes Objektiv. Preis/Leistung stimmt. Als Portraitobjektiv fehlt Blende =< 1,7. Ausser dem Originalobjektiv von Sony SAL-85F14Z 1,4 / 85mm (recht teuer, ca. 1.300,--) ist nicht viel am Markt. Gibt es heutzutage nur mehr Ultra-Super-Zooms ... ??