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snowboycosmos
super member


Reged: 07/18/12

what focal reducer should i buy? new
      #5511212 - 11/09/12 08:38 AM

something not too expensive for viewing only that will give me bigger skies further away... anything pointers will help. thanks sbc.

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Doc Bob
professor emeritus
*****

Reged: 02/27/09

Loc: Maryland, USA
Re: what focal reducer should i buy? new [Re: snowboycosmos]
      #5512170 - 11/09/12 07:04 PM

Hey Snowboy . . . ,
I found a used Denkmeier S1 - it's a permanent fixture on my CPC1100.
One eyepiece and I get 3 different views - based upon these focal lengths:
w/ reducer = appx 1764 mm w/ a 23 mm EP = 77x
normal setting = 2800 mm w/ a 23 mm EP = 122x
@ barlow setting = 5600 mm w/ a 23 mm EP = 244x

Change EP's and get a whole different set to powers . . . pretty neat!!

Before you buy anything - check the used market! The Denk Powerswitches
are really the best!

Regards,
Bob


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snowboycosmos
super member


Reged: 07/18/12

Re: what focal reducer should i buy? new [Re: Doc Bob]
      #5513716 - 11/10/12 09:28 PM

Dear Bob regarding the denkmeier I just order it and they'll ship it to the uk? Is it the short version or the regular? Silver coatings ? I don't think I'll find a second hand one here in the uk but will have a look. If you see one anywhere online do let me know.. Will it work ok on the CPC'S with my WO binos? Many thanks for the info... Snowboy

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JoeR
Pooh-Bah
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Reged: 03/07/10

Loc: Columbus, OH
Re: what focal reducer should i buy? new [Re: snowboycosmos]
      #5514430 - 11/11/12 12:48 PM

SCT or EdgeHD optics?

for SCT the Celestron f/6.3 for a flatter field
for EdgeHD the Astro-physics CCDT67 for a large clear aperture.


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snowboycosmos
super member


Reged: 07/18/12

Re: what focal reducer should i buy? [Re: JoeR]
      #5515734 - 11/12/12 10:33 AM

SCT BOB !

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