PentaxLife Tag: 70mm

Vitali on "Sigma 70mm F2.8 DG EX macro review and samples"

Vitali — Thu, 13 Sep 2007 03:22:53 +0000

Sigma 70mm F2.8 macro tested at SLRgear:
http://www.slrgear.com/reviews/showproduct.php?product=964

holycat on "Sigma 70mm F2.8 DG EX macro review and samples"

holycat — Sun, 26 Aug 2007 04:59:58 +0000

Butterflies shots are amazing. It prooves this Sigma is good. Pentax DFA macros are really hard to find, even more points for Sigma.

Vitali on "Sigma 70mm F2.8 DG EX macro review and samples"

Vitali — Wed, 01 Aug 2007 11:49:33 +0000

DPExpert have reviewed SIGMA 70mm DG Macro lens
http://www.dpexpert.com.au/archives/2007/07/_sigma_70mm_dg_macro_lens.html

They like it for superb optical qualities, excellent sharpness and colours, Limited/Full focus switch.

Dislikes for slow and noisy autofocus.

Vitali on "Sigma 70mm F2.8 DG EX macro review and samples"

Vitali — Sat, 24 Mar 2007 07:20:50 +0000

Nice set of butterflies shots made with K10D and Sigma 70mm F2.8 Macro by Jocelyn Gervais.

Vitali on "Sigma 70mm F2.8 DG EX macro review and samples"

Vitali — Tue, 16 Jan 2007 01:26:20 +0000

Thank you for sharing your Sigma 70mm experience, Leo. BTW, do you have online photo gallery?

leomitch on "Sigma 70mm F2.8 DG EX macro review and samples"

leomitch — Mon, 15 Jan 2007 23:57:09 +0000

I have the Sigma 70mm EX DG Macro lens I love it...my Tamron 90mm macro is sharp... the Sigma is like a razor. The 70mm and my Sigma 17-70mm lens will be my 2 main lenses: the 17-70mm for my walkabout lens and the Sigma 70mm Macro for portraits and close-up work.
I am glad to see this forum evolving...good stuff!

Best regards to all
Leo

Vitali on "Sigma 70mm F2.8 DG EX macro review and samples"

Vitali — Fri, 15 Dec 2006 07:04:10 +0000

Recently announced for Pentax K-mount Sigma 70mm F2.8 DG EX macro lens was reviewed by ePHOTOzine. "The lens proved to be sharp right from the outset at f/2.8 and stays that way right through to between f/11 and f/16 where reciprocity starts to come in and degrade the image slightly... ...Distortion, measured with the Imatest distortion module is negligible with a reading of 0.17% pincushion, which is visually undetectable. Chromatic aberrations are so well controlled..."

Also take a look at this gallery:
http://www.dpexpert.com.au/gallery/PentaxK10d

All the photos were taken with the Pentax K10D + Sigma 70mm F2.8 DG EX macro. Author complains that the lens is a bit on a slow side. "Focus can go a bit woolly on low contrast subjects."