Quick and simple AstroTortilla question

[Entropy]

Hey guys
I own a FSQ106EDXIII with a Canon 60D on the back of it. Trying to get AstroTortilla to work with my new EQ8 mount.
I used a FOV calculator and worked out my FOV is 2.42x1.61 degrees. Does that mean I should download the index files closest to but greater than 2.42degree down to about 14 arc minutes?
Or
Do I have to work out the diagonal size of my FOV (2.90 not much difference, I know, I just want to get the whole process right in my head) and take the 10% of that?
Or
Something else entirely?

Thanks

[RickS (Rick)]

The advice I read in a tutorial when I was setting up Astrotortilla was to take the maximum dimension of your widest FOV and 20% of the minimum dimension of your narrowest FOV and use that as the range.

Cheers,
Rick.

[Entropy]

But with a Calculated FOV of 2.42x1.61 what's the field of view I should be using
the widest edge (2.42)?
or the diagonal (2.90)?
I know the difference is marginal I just want to get the whole process straight in my head

Thanks

[RickS (Rick)]

2.42 for widest and 20% of 1.61 for narrowest...

[Entropy]

Awesome,

Thank you very much for that. Makes sense now

[l3gendluk3 (Luke)]

Wait there is a program called astrotortilla and I don't have it??? What is this????

[mithrandir (Andrew)]

Originally Posted by l3gendluk3

Wait there is a program called astrotortilla and I don't have it??? What is this????

"AstroTortilla is a wrapper around common astrophotography tools intended to automate basic tasks such as polar alignment and goto correction."

http://sourceforge.net/projects/astrotortilla/

[Vostok (Lauri)]

You can just round the maximum to 3 degrees and then have the minimum at 0.3 or 0.2 degrees.

Choosing indices is not the time to get caught in detailed numbers, that part comes afterwards.

Lauri, AstroTortilla team