archer1960 wrote in post #15435065
I'm considering moving to a FF body for improved high ISO noise performance for astrophotography, and am trying to compare ISO noise performance vs price for the various options.
On my current body (T1i/500D), 800 is where I consider the noise to be usually acceptable without additional NR work, and I'm trying to figure out how high I can go on the 6D with the same noise level.
Same question for the 5Diii and 1DX if anybody knows the answer.
I do astrophotography too, first with a 1000D, mostly with a 60D and I've just bought a 6D. I haven't had a chance to directly compare 60D and 6D for long exposures under the sky, but I have had one go with the 6D... yet to process the images though.
But I have done some direct comparisions between 60D and 6D around my house on this dark and dingy day... the results fit with what you can see on the internet. The 6D is a stop and a bit better than the 60D. Have you looked at the noise comarisons on http://www.the-digital-picture.com …al-SLR-Camera-Review.aspx? My results are like that... 6D 12800 and 60D 6400 are both about equally "colourful". I was down at 800 for my bright skies, so nice and clean.
The 6D seems to be a touch better than the 5DIII, but I have no direct experience.
Other astro considerations...
- If you're on a mount, lighter is better. Swivel screen is nice too...
- It's a bigger sensor, so if you're on a telescope then there will be vignetting and image circle problems, non-flat fields... I have yet to try this.
- It has an N3 type wired remote connector... you might need a new intervalometer.
- No clip in light pollution filters for full frame (as far as I know).
- It might be good to control it remotely using EOS utility over wifi... with an AF camera lens this would give you fine control of focus. And you can monitor things from indoors. But it might be a big battery drain. Yet to try.
Anyway, some food for thought...