> BULGARIAN ACADEMY OF SCIENCE ASTRONOMY CALENDAR FOR 2016
You can find my last DSLR Astrophotography article in Bulgarian at page 76. I am sharing my last findings for this publication, Specially written for the Institute of Astronomy. My research was made during the last year in searching of should I need to upgrade my camera and witch one would be the best for me. After writing the article I do upgrade with Pentax k-5 – the best camera from Pentax. It was a great improvement.
Even the new K-3 has lower http://www.dxomark.com/ score and thus I do not believe that the higher number of Mpix will show much improvement as most of the current lenses are best around 12 Mpix resolution.
Article could be found at: http://nao-rozhen.org/astrocalendar/2016/Astronomical_calendar_2016.pdf
To check the polar alignment of your telescope look trough the polar scope. When turning the Ra axis the polar star should move in the exact circle in the eyepiece without any deviation.
Removing the DSLR build in IR-cut filter will give you at least 50% more sensitivity for hydrogen alpha emissions of the nebulas. Also the camera will be more light sensitive at dark allowing you to shoot more faint objects.
We can check what is like to process day shot with similar to astrophotography techniques. It is cloudy in Bulgaria for the next week or so and I took shots of the nearby mountain trough the fog with 200mm lens.
Most of the modern LED backlight screens including Laptops, TV and smart phones use PAM technique for Pulse-amplitude modulation. This means that they switch on and off state very rapidly.
Having a video background gives you a lot of expression and dynamics to your site.
There a few ways to put your video as a background of your page layout.