Timeline for Help choosing between a Panasonic DMC-FZ200 or Canon EOS 500D?
Current License: CC BY-SA 3.0
5 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Sep 18, 2017 at 17:35 | vote | accept | Alex Goldie | ||
| Sep 18, 2017 at 13:53 | comment | added | JerryTheC | You can "stack" multiple images of the same target to reduce noise with free programs like Deep Sky Stacker. I've heard of one guy who managed to get a good image of the Andromeda Galaxy just with a tripod - I think he used aroudn a 300mm lens and had to stack several hundred shots - so it is possible if you're dedicated enough, but it's a lot easier (and more expensive, unfortunately) with a tracking mount and longer sub exposures. | |
| Sep 18, 2017 at 13:48 | comment | added | JerryTheC | If you want to do astrophotography without a tracking mount, then you'll be limited to around (500 / focal length) seconds for the maximum exposure on a normal tripod before stars start trailing - so a bit under a second at 600mm to around 20 seconds at 25mm. Actual times will vary depending on where you're aiming and how picky about trailing you are. For longer exposures, you'd need a tracking mount (alt-az ones are limited to around 30sec by an effect called field rotation, equatorial ones can go as long as you can track accurately (but may need autoguiding for longer exposures). | |
| Sep 18, 2017 at 11:54 | comment | added | Alex Goldie | thanks for getting back to me with the details explanation. You're right, Astrography would be getting done without a telescope, it's just something I want to try out, the main point of the camera will be for holiday / family photos. You've gave me a lot to think about :) thanks | |
| Sep 18, 2017 at 11:26 | history | answered | StephenG - Help Ukraine | CC BY-SA 3.0 |