>From the tests I've seen its the highest resolving zoom out there. Its only a 2x range, so that simplifies things. Even so the optical formula on this lens is hideously complex. 17 elements I think?
On Tue, Aug 19, 2014 at 1:31 PM, Rob Studdert <distudio.p...@gmail.com> wrote: > Bryan I've been using it mainly on a K5IIs and occasionally on a K3, > focus is pretty snappy even in marginal light on either body, I also > have the USB dock which I've not yet used to fine tune the focus > points but it seems pretty accurate so far and I've been using it wide > open most of the time. > > On 20 August 2014 00:51, Bryan Jacoby <bryan.jac...@gmail.com> wrote: >> Rob -- how has the AF been performing for you? And what body are you >> using it on? Thanks for the update! >> >> On Tue, Aug 19, 2014 at 12:17 AM, Rob Studdert <distudio.p...@gmail.com> >> wrote: >>> Just an update, the Sigma 18-35/1.8 is a killer lens, even used wide >>> open, it weighs about as much as the 50-135/2.8 it seems but the extra >>> bulk and weight is worth if for the photographic flexibility it >>> affords. I'm finding the zoom range a little limiting but when the >>> light is low it's superb and as it's so sharp images can be cropped >>> with better results than a poorer longer lens covering the frame. I've >>> also been using it in studio for group shots, damn impressive. There >>> may be some very nice older lenses on the chopping block soon. >>> >>> On 9 July 2014 17:32, John Coyle <jco...@iinet.net.au> wrote: >>>> I have the earlier still Sigma 18-35 3.5-4.5 - and it is very sharp! Only >>>> issue I have found it >>>> occasionally locks up when focusing on the ist-D, but a quick reset fixes >>>> it. It should be a great >>>> lens for the shows you'll be doing, I think. >>>> >>>> John Coyle >>>> Brisbane, Australia >>>> >>>> >>>> >>>> -----Original Message----- >>>> From: PDML [mailto:pdml-boun...@pdml.net] On Behalf Of Rob Studdert >>>> Sent: Tuesday, 8 July 2014 2:52 PM >>>> To: Pentax-Discuss Mail List >>>> Subject: OT Sigma 18-35/1.8 >>>> >>>> Hi Guys, >>>> >>>> Well the now not so new Sigma Art series 18-35/1.8 lens is now finally >>>> available in K-mount, I >>>> picked mine up today first shipment into my local pushers this morning, >>>> I've played a little, it >>>> damn nice wide open and its build quality is superb. It's a bit big >>>> though, only slightly smaller >>>> than the DA*50-135 in stature so it has displaced my Samyang 8/3.5 and DA >>>> 35/2.8 Macro from my go-to >>>> kit for the moment. >>>> >>>> I have three shows to shoot before Sunday so it will get a good work-out >>>> in place of my Sigma >>>> 17-50/2.8, conditions permitting. I will report back on performance, >>>> particularly AF speed and lock >>>> wide open. >>>> >>>> Size comparison: >>>> >>>> https://www.dropbox.com/sh/ybuc4gc4b0bejkk/AACi53mrqBwt172NjDbv9t9_a >>>> >>>> Cheers, >>>> >>>> -- >>>> Rob Studdert (Digital Image Studio) >>>> Tel: +61-418-166-870 UTC +10 Hours >>>> Gmail, eBay, Skype, Twitter, Facebook, Picasa: distudio >>>> >>>> -- >>>> PDML Pentax-Discuss Mail List >>>> PDML@pdml.net >>>> http://pdml.net/mailman/listinfo/pdml_pdml.net >>>> to UNSUBSCRIBE from the PDML, please visit the link directly above and >>>> follow the directions. >>>> >>>> >>>> -- >>>> PDML Pentax-Discuss Mail List >>>> PDML@pdml.net >>>> http://pdml.net/mailman/listinfo/pdml_pdml.net >>>> to UNSUBSCRIBE from the PDML, please visit the link directly above and >>>> follow the directions. >>> >>> >>> >>> -- >>> Rob Studdert (Digital Image Studio) >>> Tel: +61-418-166-870 UTC +10 Hours >>> Gmail, eBay, Skype, Twitter, Facebook, Picasa: distudio >>> >>> -- >>> PDML Pentax-Discuss Mail List >>> PDML@pdml.net >>> http://pdml.net/mailman/listinfo/pdml_pdml.net >>> to UNSUBSCRIBE from the PDML, please visit the link directly above and >>> follow the directions. >> >> -- >> PDML Pentax-Discuss Mail List >> PDML@pdml.net >> http://pdml.net/mailman/listinfo/pdml_pdml.net >> to UNSUBSCRIBE from the PDML, please visit the link directly above and >> follow the directions. > > > > -- > Rob Studdert (Digital Image Studio) > Tel: +61-418-166-870 UTC +10 Hours > Gmail, eBay, Skype, Twitter, Facebook, Picasa: distudio > > -- > PDML Pentax-Discuss Mail List > PDML@pdml.net > http://pdml.net/mailman/listinfo/pdml_pdml.net > to UNSUBSCRIBE from the PDML, please visit the link directly above and follow > the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
