Quote:
Originally Posted by Camelopardalis
Chris, looks a bit like you're clipping the black end of the histogram as that field has lots and lots of stars, and it should look a bit more like a star field. Nice effort all the same.
Have a look at a thread I started recently about cameras here http://www.iceinspace.com.au/forum/s...d.php?t=145048
The moral of the story, echoing that above, is that it doesn't matter what you use, it's up to your skill to make the most of it. It's all possible.
Regarding crop factor and full frame...your focal length doesn't actually change with crop sensor/full frame, it's just that the FOV is that much larger with full frame. It's not quite the same thing. Assuming pixels of the same size in each camera, the angular resolution is the same with the same scope. |
I saw that thread. Very interesting! I can't claim I understand much of what people were saying to be honest, but it was interesting to see the sharpest image come from the cheapest camera.
Yeah the star field thing - all I had at the lower end was light pollution and noise. There was simply no data there. Changing the curve just made the entire sky a wash. I tried stretching it but a) I don't really know how, and b) I honestly don't think there was anything to be stretched anyway.
And yep I understand the difference between focal length and FOV. I had a lengthy argument with my Dad about it recently; he was convinced that they were the same thing and I had to draw diagrams and get various lenses on two different cameras to make my point. But the fact remains that because both cameras are 24MP, on a full frame the fine details will be somewhat smaller.
Totally agree that the challenge is working within your means and exploring the limits of your equipment and abilities rather than bemoaning the lack of some other bit of gear. I guess that means for this particular image I need to explore ways to shoot and process to help eliminate light & atmospheric pollution... just not sure how that can be done with my very basic setup without spending more money. Can't spend any more right now.
Having said that, it's hard to know where to look for further development right now. With 510mm unguided and a stock DSLR it feels like after the usual suspects (Orion, Carina, Tarantula, Lagoon nebulae; Omega Centauri; Southern Pinwheel) I'm kinda just running over the same old ground. I need some sort of guidance as to what I need to do to improve but I'm at a bit of a loss as to what that is. I can do those targets again, and probably will, but I can't expect different results if I keep going about it the same way.
Anyway. This current disappointment notwithstanding, it's still pretty amazing stuff as far as I'm concerned. 600 light years wide, 160,000 light years away, stars over 100 times the mass of the Sun - how can I possibly be bummed for long with those sorts of figures??