Quote:
Originally Posted by AstroJunk
Great explanation on your blog Greg - thanks for taking the time to put it together. I feel that the resolution of the chips is beginning to give some of these equations a hard time as even 30 seconds on the 18mp aps-c chip is pushing it let alone 45+ which would provide a clear streak.
|
Try an APS-C with 24m 3.89um pixels.
With Joe's formula if I want less than 4px of trailing, at 14mm (effective 21.6mm) I get 90° FOV and can't go beyond 16 sec.