12-11-2017, 09:44 AM
At high resolution there are already visible startracks at 20 sec.
It's the question if a star tracker and a less fast lens (but well corrected) might be the better idea for static milky way shots. In your otherwise great picture the corners are also notshowing pointy stars but some stripes. For example, an Irix 15/2.4 has an adjustable infinity hard-stop, costs less than 1000 bucks, so a bit of money is left for getting a star tracker.
The question is also, if - except some star tracking experts and lens nerds - will complain about these things if the see a beautifully composed picture with a milky way no on usually sees with bare eyes at our light polluted night skies?
I think, the Sigma is meant for more than only milky way shots - it's sort of good for these kind of stuff, but less good than specialized gear. However, that specialized gear doesn't help much with wide angle wide open shots. The bokeh is very neat and I really love the lens for this kind of things. If I were "only "in milky way shots, I'd look for something else.
It's the question if a star tracker and a less fast lens (but well corrected) might be the better idea for static milky way shots. In your otherwise great picture the corners are also notshowing pointy stars but some stripes. For example, an Irix 15/2.4 has an adjustable infinity hard-stop, costs less than 1000 bucks, so a bit of money is left for getting a star tracker.
The question is also, if - except some star tracking experts and lens nerds - will complain about these things if the see a beautifully composed picture with a milky way no on usually sees with bare eyes at our light polluted night skies?
I think, the Sigma is meant for more than only milky way shots - it's sort of good for these kind of stuff, but less good than specialized gear. However, that specialized gear doesn't help much with wide angle wide open shots. The bokeh is very neat and I really love the lens for this kind of things. If I were "only "in milky way shots, I'd look for something else.