Test of Sony Alpha 7s
Posted: Thu Oct 09, 2014 10:51 pm
Une petite digression, vue que j'ai l'occasion de tester un Sony Alpha 7s, tout nouveau avec ces gros pixels. Bien sur j'ai fait un tout petit peu de spectro (http://www.astrosurf.com/buil/sony7s/eval.html).
The Sony Alpha 7s a is a very new digital camera. It's particularity is large pixels. The camera is adapted to faint flux... and astronomy ? Here a quick review: http://www.astrosurf.com/buil/sony7s/eval.html
Note the test with a SA100 and the problem induced by CFA structure (typical for DSLR). gamma Cas example:
(up RAW image, mid extracted 3-colors images (IRIS), down the JPEG given by the firmware (...).
Here a spectrum of M45 (Sony Alpha 7s on a FSQ-106ED refractor, SA 100 + prism, 3 x 30 sec. exposure):
Christian
The Sony Alpha 7s a is a very new digital camera. It's particularity is large pixels. The camera is adapted to faint flux... and astronomy ? Here a quick review: http://www.astrosurf.com/buil/sony7s/eval.html
Note the test with a SA100 and the problem induced by CFA structure (typical for DSLR). gamma Cas example:
(up RAW image, mid extracted 3-colors images (IRIS), down the JPEG given by the firmware (...).
Here a spectrum of M45 (Sony Alpha 7s on a FSQ-106ED refractor, SA 100 + prism, 3 x 30 sec. exposure):
Christian