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Tom and Beth
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Reged: 01/08/07

Loc: Tucson, AZ
Luntanado using a Coronado SM 60? new
      #5034831 - 01/24/12 12:35 AM

if so, with which Lunt scope?

If this has already been discussed, please just point me to the thread(s). Thanks.


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Bill Cowles
MacGyver
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Reged: 04/16/06

Loc: Utah
Re: Luntanado using a Coronado SM 60? new [Re: Tom and Beth]
      #5035610 - 01/24/12 02:15 PM Attachment (25 downloads)

I use the SM60 on my Lunt 60 and also stack it on my Lunt 50mm filter for a "Tri" stack. It works, but I think the Lunt filter is a little better,but unless you compare them side by side, don't think you would notice the difference. You will need an adpt, which is available from Lunt.

I only deceided to use the filter since I hated to see it gather dust, after getting the Lunt 60DS. I think you would really like the Luntanado especially if you already own the SM60.

Bill

Edited by Bill Cowles (01/24/12 02:17 PM)


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Bill Cowles
MacGyver
*****

Reged: 04/16/06

Loc: Utah
Re: Luntanado using a Coronado SM 60? new [Re: Tom and Beth]
      #5035625 - 01/24/12 02:24 PM Attachment (38 downloads)

Here is a better image showing the adaptor and SM60. I think the SM filter is easier to tune, due to the tuning wheel, sitting higher, than the Lunt filter.

Bill


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Tom and Beth
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Reged: 01/08/07

Loc: Tucson, AZ
Re: Luntanado using a Coronado SM 60? new [Re: Bill Cowles]
      #5035998 - 01/24/12 06:22 PM

Thanks, Bill. That indeed looks nice.

I do indeed have the SM60. It does make for a good travel package with the TV-76. After several months of a SM90 on the 100 I've gotten spoiled, and it's much easier to do the Luntanado than try to get another SM60 that would match.

Thanks again. It's a very attractive kit you have there.


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BYoesle
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Reged: 06/12/04

Loc: Goldendale, Washington USA
Re: Luntanado using a Coronado SM 60? new [Re: Bill Cowles]
      #5036000 - 01/24/12 06:23 PM

If you are only going to use the Coronado for DSing, you may also want to consider removing the red glass ERF and replacing it with a clear optical window to protect the etalon. The internal etalon already has an ERF and the Coronado’s ERF would be unnecessary in this set up - this will achieve a significant increase in image brightness.

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Tom and Beth
Post Laureate


Reged: 01/08/07

Loc: Tucson, AZ
Re: Luntanado using a Coronado SM 60? new [Re: BYoesle]
      #5043051 - 01/28/12 06:06 PM

Hmmmm, interesting, Bob.

Knowing that a "Clear optical Window" can be difficult to come by in the right size with good optical characteristics, would an IR/UV block filter work? I already have a B&W filter in that size (Scott Glass)


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Bill Cowles
MacGyver
*****

Reged: 04/16/06

Loc: Utah
Re: Luntanado using a Coronado SM 60? [Re: Tom and Beth]
      #5043120 - 01/28/12 06:51 PM Attachment (20 downloads)

I even tri-stack. The image is dim, but the smaller sweat spot sure is nice. I compared both and I think the Lunt 50 gives a little better image, but then the SM60 is probably not matched for the Lunt, still it gives a beautiful image.

Bill


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