PIX 2015
hanhait

hanhait

Lives in Netherlands Eindhoven, Netherlands
Works as a physicist
Joined on Oct 21, 2006

hanhait's recent activity

  • I have been a happy user of the Sigma 17-70 / 2.8-4.5 for many years. However I was always annoyed about the unsharp edges at 17 mm. So ignoring the saying 'the better is the enemy of the good' I ...
  • Do you use the central focussing point ? Even then, there must be some contrast in that area, a sharp edge or so is best. I often focus on something contrasty in the direct neighborhood at the ...
  • very versatile and still very sharp: the 16-85
  • I had a panagor 28 mm lens with a Ricoh-XR2 SLR (Pentax mount !), and I was very happy with it. So 28 mm ?
  • Thank you, so updating to the latest version of DCU5 is the clue. I renamed a USB-drive to S-SW140 , downloaded the DCU5 software without problems, and, yes, it recognizes the lens and camera well.
  • Thank you for your response. I have firmware 1.16, which is the latest and DCU 4 version 4.40, which is said to be for the K-5. For the DCU 5 version it is said it is for the newer models like K3 ...
  • I just obtained the 16-85 to replace the good old Sigma 17-70 on the K-5. The much smoother autofocus is the most striking difference, corner sharpness and minimal CA at 16 mm the next one. However ...
  • Is is always noise vs sharpness. I don't think a direct comparison will say anything, maybe only for raw processed in exactly the same way. You could look at the tests on dpreview. I would not ...
  • Your picture is already very, very nice ! The O-GPS1 appears to have worked very well (and your tripod too), that is not always the case. To prepare focussing: you can look for infinity at daytime ...
  • I had preferred this specification compared to the DA 16-85, provided the quality is the same, which we can only guess (considering the price tag probably it is at least close). On the other hand, ...
  • On my screen it could be a little bit lighter and I suppose the right-hand part was intended gray; I see a purple cast. I see that in more old lenses. You can correct a bit by changing the white ...
  • You can start to make savings for a new one. The price per picture will be acceptable anyhow.
  • As far as I know: yes you can. Pentax' DCU is highly underrated, by the way.
  • I'm not sure what you mean. I think the usual - and only feasible I suppose - correction is for the lateral CA that increases towards the edges, so near the center this correction has no effect. ...
  • If the resolution can be so obviously improved, this also means that the lens can do better than thought, e.g. in lens tests with a non-shift camera. Of course it will always be the lens/camera ...
  • Thank you for the review. I think you commonly also test bokeh and axial chromatic aberration. Is there a reason you left this out, or you can just spend some words on these aspects ? Thank you in ...
  • 1/1000th of a micron is a nanometer, that is a bit over the top for consumer optics, but you are very correct. With todays measurement tools it is absolutely possible to make and assemble ...
  • Thanks Dean and Klaus. For Dean the reward is the confirmation that he got a fairly good copy. For Klaus: 5% of the lens prize, but only if one gets a good copy ?
  • Interval shooting seems not available combined with pixel shift. Still, you can buy an external shutter release that includes interval shooting. Combined with the maximum shutter speed of 30 ...
  • In NL, and suppose Europe, there are different fees/taxes for goods with value less than EU 45 (0), between EU 45 and EU 700 (2.5 %) and more (21%). This applies to 'packages from individuals', so ...
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Last post Aug 7, 2014
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