Maximum Field of View
Posted: Wed May 17, 2017 2:19 pm
Hi Robin,
I'm looking forward to being able to try the Polar Alignment when the Astro Gods see fit to show me some stars.
I have seen the question regarding minimum FOV, how about Maximum? I am intending to use a DSLR + lens for imaging and would like to use the same for polar alignment (adding Sparkocam).
If the reasonable upper limit is 2.5 degrees do I need to crop within Sparkocam or Is the upper limit related to arcsec/px rather than the 2.5 degrees FOV? making cropping pointless.
What is the likely arcsec/px limit? My longest lens would give 4 degrees, 2.54"/px
Laurie
I'm looking forward to being able to try the Polar Alignment when the Astro Gods see fit to show me some stars.
I have seen the question regarding minimum FOV, how about Maximum? I am intending to use a DSLR + lens for imaging and would like to use the same for polar alignment (adding Sparkocam).
If the reasonable upper limit is 2.5 degrees do I need to crop within Sparkocam or Is the upper limit related to arcsec/px rather than the 2.5 degrees FOV? making cropping pointless.
What is the likely arcsec/px limit? My longest lens would give 4 degrees, 2.54"/px
Laurie