Astrophotography Lens Test
A test of wide-angle lenses for astrophotography on FX format. The shots were taken from suburban conditions, the camera was mounted on a static tripod without guiding. The left image is always the full frame, the middle one is the center, and the right one is the upper left corner of the image.
A few years ago I did a similar test on DX using different lenses: http://salzgeber.at/articles/lens_test/nikon.html
Even when the moon is almost full (95% in this case) there are interesting features to be found near the terminator:
23rd October 2015
127mm f/8 AP refractor, Televue 3x Barlow, QHY5L-II color CMOS camera, stacked in Autostakkert, processing in Photoshop.
In October 2015 four planets line up in the morning sky for a very beautiful display. Mercury is hidden below the horizon in this picture. Read More
The September 28th total lunar eclipse was very impressive, as it turned out to be a very dark one, and for once, it happened in a perfectly clear sky.
After bad weather in August yesterday the sky was good enough for half a night of observing and photography Read More
Today I tried to capture a transit of the ISS across the disc of the sun, but somehow I missed it, even though I started my series of exposures according to a GPS clock. So the only result I can show is the face of the quiet sun, with only small sunspots littered across. Read More
Yesterday afternoon I decided to do some simple astrophotography high up in the mountains. I chose the Cavalljoch as the view to the south is unobstructed. My backpack was way too heavy, but somehow I managed to trek from Schattenlagant to the Cavalljoch. The night was the darkest night I ever experienced. M13 was clearly visible with indirect vision with the unaided eye. Read More
Currently Venus and Jupiter are pairing up for a brilliant conjunction in the evening sky, here are some images: