astrostu
I shoot for the stars
- Joined
- Aug 1, 2006
- Messages
- 673
- Reaction score
- 17
- Location
- Boulder, CO, USA
- Can others edit my Photos
- Photos NOT OK to edit
The upcoming transit of Venus will be visible here for about 3 hours from start to just before half-way before it sets in the mountains. I have one Canon 7D, one 400mm lens, one 2x extender, one solar filter equivalent, and one mount that will track the skies. I'm trying now to figure out if I should do HD video of the whole friggin' thing, or if I should do an image sequence, like once a minute.
Here's what I've come up with so far in terms of pros and cons for each:
Pros for Image Sequence:
Pros for Movie:
Cons for Image Sequence:
Regardless of either, I will be doing a movie once the sun contacts the mountains instead of an image sequence.
Thoughts?
Here's what I've come up with so far in terms of pros and cons for each:
Pros for Image Sequence:
- Roughly 3x the number of pixels to work with for each "frame."
- Can take sets of 5 (or 10 or whatever) images for each "frame" to stack.
- If sequence is fine enough in temporal resolution can sorta make a continuous-looking movie.
Pros for Movie:
- Continuous except for mandatory 7D breaks at the 15-minute mark.
- Can't really stack images, so processing time goes WAY down.
Cons for Image Sequence:
- See Pros for Movie
- Insane amount of processing time. With the recent solar eclipse, I ended up spending about 7 minutes on each frame, and with 75 frames total, that was over 8 hours.
- See Pros for Image Sequence
- Small drifts over time may result in needing to realign camera, which would make a giant jump in the movie.
Regardless of either, I will be doing a movie once the sun contacts the mountains instead of an image sequence.
Thoughts?
Last edited: