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Love Thy Neighbor!! M20 & M8

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Hi All

Was testing to see if the Hotech FieldFlattener would work with the Equinox 80 - answer is No! - Image in my light-polluted backyard in the absence of the waning moon!

With this shot I had to crop out all the four corners as there were elongated stars - there's still some left in there!!

Wonder if anyone here knows what would be a suitable FieldFlattener for this size scope?? Any advice would be received gratefully

See higher res version here

Scope: SW Equinox 80mm OTA

CCD: Orion SSDIPro v1 OSC

Exp: 10 x 5mins, 10 x 4mins no darks, no Bias

PP: Nebuslosity + PS CS4

C & C welcomed

Thanks for looking

Cheers

Bill

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Very nice mate. Good colour spectrum as well.

With the flattener, if you are using a standard refractor, then (and I could be wrong), but a flattener for other brand refractors of the same FL and FR would do.

Something like this, but bare in mind, there are many other brands out there that would also work on your scope.

Is the scope userfriendly? Never used one before.

Ray

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Still not a terribly bad result Bill. in fact pretty darn good.

I tried one of those inexpensive GSO reducers a while back...awful would of been a compliment, to the image I got!

Cheers

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@Shane

Thanks mate! Just beginning to pick up from where I left off early last year; got into a "rut" with work getting in the way but unfortunately if I don't work hard now I wouldn't be able to afford all the nice "astro-goodies" mate! Glad you liked the Picasaweb pixs - drop in there from time to time as I post new ones whenever available

@Tim

Cheers Tim - yep its still amazes me when I step down from the 120mm OTA to this 80mm OTA that everything is still great and the vista is astoundingly wide! For some reason I don't know of at the moment I seem to be getting worse results BUT it works a treat for the 120mm OTA; been told that perhaps I need to adjust the spacing of the last element of the FF to the CCD chip - will be testing it soon

@Ray

Cheers Ray; noticed that the link you provided seems to be the same piece of gear that I've got but it's branded HoTech instead; in fact the HoTech Self centring 2-inch Field Flattener with T-thread also claims to work with refractors f/5 to f/8 however I'm unsure of the focal length range that it will cover - eg: the 120mm OTA is 900mm and it works a treat whereas the 80mm OTA is just 500mm and perhaps because of this already much wider FOV that the FF would not cover the whole area corner-to-corner!

Which means that I might have to look for one that actually is designed to work with an 80mm aro 500/600mm fl

I've seen this one here and I'm sure it'll work!

BTW Ray, which mono CCD imager have you on order mate?

Thanks once again all

Cheers

Bill

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