All Forum Comments
Comment by johnwhit posted on Short zoom to replace kit lens at 30/04/2013 - 07:23
Comment by johnwhit posted on Filter clearout 77, 67, 58, 52 & 49mm at 29/04/2013 - 19:15
John
Comment by johnwhit posted on Stopping down from max aperture takes two clicks of e-dial at 29/04/2013 - 08:59
Don't eat it !
John
Comment by johnwhit posted on Food Photography: Any tips? at 29/04/2013 - 08:56
Just a thought. If the previous owner was using it on an early pre SDM Pentax it could appear faulty to them?
I haven't got one so not sure if it is screw drive compatible but I've presumed it isn't.
John K
John
Comment by johnwhit posted on Whats wrong with this lens? at 29/04/2013 - 08:16
John
Comment by johnwhit posted on Filter clearout 77, 67, 58, 52 & 49mm at 28/04/2013 - 16:59
John
Comment by johnwhit posted on the cheaper Pentax 540 battery pack... at 28/04/2013 - 11:00
Comment by johnwhit posted on the cheaper Pentax 540 battery pack... at 28/04/2013 - 10:47
Comment by johnwhit posted on Filter clearout 77, 67, 58, 52 & 49mm at 27/04/2013 - 19:26
I can't find the link now but I remember reading about this a year or two back. I think it's something to do with the focus point not necessarily being the same at different f-stops on some lenses, due to various aberrations.
John
Comment by johnwhit posted on AF Calibration charts at 27/04/2013 - 11:36


Well with a bit of searching i have found a UK retailer selling a used Sigma DC 17-70 F2.8-4.5 for £150. It's the first gen model with the slightly slower optics and no HSM motor. But seems a good price.
John