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Post by davy on Dec 11, 2016 0:03:31 GMT
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Post by ChrisV on Dec 11, 2016 3:40:39 GMT
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Post by Dragon Man on Dec 11, 2016 12:20:32 GMT
They look good. Both the Orion and the Ebay ones.
I wonder if they will focus with a Focal Reducer? Be nice to get the FOV just that little bit wider. I entered the specs into CCD Calc and it gives a 70 arcminute field (just a tad over 1 degree) with a 1/3" sensor (SCB-2000, LN-300, Revolution Imager, etc). Be nice to get 1.5 - 2 degrees (90 - 120 arcminutes).
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Post by davy on Dec 11, 2016 13:38:41 GMT
I have the orion 50mm mini guider . Only tried it with the qhy5 guide camera. Note... I hate this camera 😀
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Post by ChrisV on Dec 11, 2016 21:28:30 GMT
That's lucky. I nearly bought a QHY5l-11 to use as a guider and viewing through a guidescope. But was too late.
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Post by davy on Dec 12, 2016 0:20:30 GMT
Hi Chris,,I may have just been unlucky with it,works then doesn't,, light flashes on it,, tried it on sharpcap,, recognised it when I plugged it in,, Found my old Philips spc900nc,,well it's the 880 flashed to the 900,, going to look up drivers and use it for the moon and planets,, think it had something like nearly 100 fps and state of the art 6+ years ago lol,, Time to give it the kiss of life,, wonder how it will go with sharpcap.
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robrj
Member
Posts: 248
home town/country: Escondido, CA
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Post by robrj on Dec 17, 2016 0:44:10 GMT
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Post by howie1 on Dec 17, 2016 11:18:29 GMT
Hey Robert ... you are getting 1.4 degrees radius ... 2.8 degrees FOV.
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Post by Dragon Man on Dec 17, 2016 13:39:36 GMT
Well done Rob Shows what a simple 50mm finderscope/guidescope can do.
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robrj
Member
Posts: 248
home town/country: Escondido, CA
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Post by robrj on Dec 18, 2016 1:43:50 GMT
Hey Robert ... you are getting 1.4 degrees radius ... 2.8 degrees FOV. 1.4 Tfov
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Post by howie1 on Dec 18, 2016 3:42:47 GMT
Um ... whats Tfov? I saw Pleiades and M31 in your images album and thought dang that looks wider than 1.4 deg. The Pleiades is almost 2 deg and fits totally within the FOV, and M31 is 3 and a bit deg and although you cannot see the edges looks like the whole thing just about fits in the FOV. Then I noticed the albums Astrometry.net details which said 1.4 deg radius. Being the radius I thought ok the total FOV is therefore twice that IE 2.8 deg. What am I missing cheers
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robrj
Member
Posts: 248
home town/country: Escondido, CA
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Post by robrj on Dec 30, 2016 19:15:43 GMT
No, sorry. You are correct. Astrobin shows it in radius.
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