hanhait

hanhait

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

hanhait's recent activity

  • Somebody else already asked: is there really red in the background ? The WB-cure already described may help, though I find the result a bit green. You can put the white-balance to automatic ...
  • Same here, very frustrating. This one at the evening of January 24, during half an hour without clouds. K5+100/4 macro, 1 minute, ISO 400, heavy light-pollution. Comet Lovejoy at the right. ...
  • Depends a bit on the 'marginal' Sigma lenses. Nobody may give a penny for it, still very good pictures can be taken with it; 6 MP is plenty for A4 and even allows A3 printing. The relatively large ...
  • Another K100D(S) owner here, who does not think of selling it. No WR but probably better than K10D in low light (ISO 1600 is still fine). Replaced it for a K-5 mainly for the shutter noise, of ...
  • The mirror could stay in place, reflecting 50% when viewing/focussing, and 0% when the exposure is taken, assuming it can change its state within 0.05 sec or so, which I doubt. Also I think it ...
  • Zero, as it was on the K100D right away. I find it highly useful for checking the camera's basic functions (especially battery life and remaining exposures) when switching on the camera when it's ...
  • You are correct in that the K-bayonet was designed for film/full frame, and that with a CMOS/CCD it is more logic to use an EVF than stay to the mirror. Still I don't feel I am missing anything ...
  • I think it's best to assuming you got good copies to start with. If you get unexpected bad results you may start doubting. Open aperture is most critical, so if these are really too bad you may ...
  • If you are on a budget of $100 or so: a used K100D (super is better) may be obtained at the price level of your old-era objectives, and there is nothing wrong with it if you are happy with 6 MP ...
  • 'daylight' is a broad term, and its color temperature varies with the time of the day, in the sun, in the shadow, when clousy, etc. I would say AWB is safer, but may go wrong occasionally as well.
  • Although I cannot see the full resolution it all looks rather sharp corner-to-corner and I don't see any CA, or does the camera correct for that ?
  • Replied in Acropolis
    It is also impressive for a typical viewer. As others indicate: the 'focus' fo this picture is twofold. Did you also go down the stairs somewhat and direct the camera more skywards ? Then you ...
  • don't. If it has a M42 screw you can buy an adapter to K-mount, that might be more expensive than the lens. You will have to use it fully manual, which is not easy or convenient for a zoom lens. ...
  • I made some 15k pictures with the (older) Sigma as standard lens, no real complaints, except for 17 mm/2.8. So you better forget about 2.8 and an advantage in that. With the Sigma you can get ...
  • compare to the (older) Sigma 17-70 2.8-4.5 17 mm - 22 mm = F2.8 23 mm - 34 mm = F3.5 35 mm - 64 mm = F4.0 65 mm - 70 mm = F4.5 roughly half a stop difference
  • Could you tell us how the maximum f-stop changes with the focal length ? It is 3.5 at 16 mm, 5.6 at 85 mm, but what is it e.g. 24, 45, 70 mm ? You can see it in the camera indication, assuming that ...
  • Maybe, but I would think the angular distance between stars is constant, and lens distortion will be minimal, and not relevant if the stars do not move over the sensor. Maybe the O-GPS unit only ...
  • Replied in DA16-85
    For comparison with Sigma: 85mm/5.6 means 15.2 mm lens diameter. 70/4 means 17.5 mm lens diameter, and for the older version 70/4.5 means 15.6 mm lens diameter. So the difference at 70 mm might be ...
  • Replied in DA16-85
    I'm also curious. Online I only find it for pre-order, so probably nobody has one yet.
  • Ok, now it is clear, thank you. Maybe it is also interesting for the other readers to mention your exposure time, whether you used O-GPS1 (I understand so from the Bulgarian text), ISO setting. ...
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