AT 72EDII with TS Binoviewer OCA 1.9 in two places
- dagadget
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AT 72EDII with TS Binoviewer OCA 1.9 in two places
In this topic we have an Astro Tech AT 72EDII Refractor with Supercharged TS Binoviewer with a Burgess 1.9 OCA on the nose of the Binoviewer in one photo (the one with 5mm of focus travel left) and in the other photo the focuser is out at around 80mm and the 1.9 OCA is screwed into the front end of the Astro Tech 1.25 inch diagonal The scope is focused on trees around 300 yards away. In the case of the OCA on the nose of the Diagonal the magnification is incredible leading me to believe the OCA is more along the line of around a 3 instead of a 1.9. My question is how do you measure the actual magnification when you move the OCA farther out or in the light path?
Celestron C11 Carbon Fiber CGEM II Mount AKA Cloudzilla
Sky Watcher Mak Cas 180 Ioptron IEQ 30 AKA MoonZilla
AT 92 on IEQ 30 Pro AKA ClusterZilla
Home Made 8 inch Newtonian Reflector on Rocker Box AKA Scopezilla
Celestron 4 1/2 114 mm Newtonian Telescope 910 F/L GT Mount AKA Frankenscope.
David
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Re: AT 72EDII with TS Binoviewer OCA 1.9 in two places
I suspect you are well above 3x with the OCA in front of everything.
I will look for the formula and you find out the measurements
The only culture I have is from yogurt
- dagadget
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Re: AT 72EDII with TS Binoviewer OCA 1.9 in two places
Celestron C11 Carbon Fiber CGEM II Mount AKA Cloudzilla
Sky Watcher Mak Cas 180 Ioptron IEQ 30 AKA MoonZilla
AT 92 on IEQ 30 Pro AKA ClusterZilla
Home Made 8 inch Newtonian Reflector on Rocker Box AKA Scopezilla
Celestron 4 1/2 114 mm Newtonian Telescope 910 F/L GT Mount AKA Frankenscope.
David
- Lady Fraktor
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Re: AT 72EDII with TS Binoviewer OCA 1.9 in two places
I will look around for some measurements tomorrow.
Time for bed!
The only culture I have is from yogurt
- dagadget
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Re: AT 72EDII with TS Binoviewer OCA 1.9 in two places
Celestron C11 Carbon Fiber CGEM II Mount AKA Cloudzilla
Sky Watcher Mak Cas 180 Ioptron IEQ 30 AKA MoonZilla
AT 92 on IEQ 30 Pro AKA ClusterZilla
Home Made 8 inch Newtonian Reflector on Rocker Box AKA Scopezilla
Celestron 4 1/2 114 mm Newtonian Telescope 910 F/L GT Mount AKA Frankenscope.
David
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