[ATM] Help in moving my secondary

[RP Sutton <rp@suttonsonline.us>]

Hello Everyone -

I would like to upgrade my focuser, but to do that i will need to move my 
secondary 1" closer to the primary. MY scope is a 10" f/7 and has a 1.53 " 
secondary. I measured the distance from the center dot of the primary to the 
center dot of the secondary and it is approx 61" +/- 1/4". My question is this - 
will I be messing up anything in the light path by moving the secondary 1" 
closer? will the light cone overflow the secondary if it is 1" closer to the 
primary? I do not know much about these things and am using terminology I have 
gleaned from reading this list so I hope and am stating things correctly.

Thanks for your help -

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