Originally posted by splash_fr First outing of the 16/2 at night. Still a lot of experimentation to do, but for a quick test it is OK-ish...
Rgds,
Gerd.
I was going to post a few night skies but you beat me to it. Great result indeed for a quick test! The Samyang 16mm is a magnificent lens for astro shots, and the astrotracer seems to work pretty well. However, I feel you are overdoing the exposure (although this is obviously a matter of taste). In my mind, the impression of some stars shining much brighter than others should be kept if possible.
I don't have the astrotracer, so I resort to burst mode series of shorter exposures that I merge in PP. Hugin (the free panorama stitching software) does a great job aligning the individual images. Here is a shot from the recent Perseid meteor shower, fused from 11 shots in lighten mode to keep the meteors visible (K-5 II, Samyang 16mm at f/2.4, 10 sec., ISO 800, crossposted from
https://www.pentaxforums.com/forums/12-post-your-photos/301523-night-perseid-...ml#post3354384). Averaging works even better to get rid of the noise, which allows you to really bring up the exposure in PP.
This is from the Samyang 8mm fisheye which allows for longer exposures before the movement of the stars becomes visible (K-5 II, f/5.6, 30 sec., ISO 1100, fused from a 39 image series but skipping those with planes or satellites in them):
This is more tricky: to keep the foreground sharp while aligning the stars, a lot of manual PP is needed (K-5 II, Samyang 16mm at f/2.4, 10 sec., ISO 1600, 8 shots):
With exposures of several seconds the camera in burst mode goes on shooting uninterrupted as long as the power supply allows. With such serial images I can do all kinds of weird and wonderful things: star stacks as described above, star trails, time lapse videos and even star trail time lapses. Here's an almost 3 hours' series of 306 shots fused in lighten mode (K-5 II, Samyang 16mm at f/2.8, 30 sec., ISO 400):