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yegnal · 02-23-2010, 03:48 AM

I am thinking of buying the Pentax "PF-CA35 K-Mount" which is an eye piece for Pentax spotting scopes to allow for photograhing through the scope...

Pentax PF-CA35 K-Mount SLR Camera Adapter 70510 FREE S&H 70510. Pentax Spotting Scope Accessories.

It appears to be a standard telescope eye piece with a K mount on one end, and since I have a Meade ATX-90, was wondering if anyone ever tried to use this eye piece on a Meade or other brand telescope, and what the results were...

JL

wildlifephotog · 02-23-2010, 06:11 AM

Here is the part you need for the ETX 90.
ETX 90/105/125

wildman · 02-23-2010, 06:33 AM

It's important to know that this was designed for use with a spotting scope not an astro scope. In other words you will not get a correct image using it on a conventional astro scope without the prism found in a spotting scope.

Also I think you will have to add 50-60mm of extension to make it come to focus. This would make up for the missing prism.

wildlifephotog · 02-23-2010, 11:45 AM

USA seller, 5th photo left side of page.
Meade Instruments Corporation - ETX Accessories

02-23-2010, 03:48 AM	#1
yegnal Inactive Account Join Date: Jan 2010 Location: New York Posts: 11	Digi-Scoping - Telescope(s) I am thinking of buying the Pentax "PF-CA35 K-Mount" which is an eye piece for Pentax spotting scopes to allow for photograhing through the scope... Pentax PF-CA35 K-Mount SLR Camera Adapter 70510 FREE S&H 70510. Pentax Spotting Scope Accessories. It appears to be a standard telescope eye piece with a K mount on one end, and since I have a Meade ATX-90, was wondering if anyone ever tried to use this eye piece on a Meade or other brand telescope, and what the results were... JL

02-23-2010, 06:33 AM	#3
wildman Veteran Member Join Date: Jun 2008 Location: Flyover America Posts: 4,469	It's important to know that this was designed for use with a spotting scope not an astro scope. In other words you will not get a correct image using it on a conventional astro scope without the prism found in a spotting scope. Also I think you will have to add 50-60mm of extension to make it come to focus. This would make up for the missing prism. Last edited by wildman; 02-23-2010 at 06:39 AM.

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02-23-2010, 06:11 AM	#2
wildlifephotog Inactive Account Join Date: Nov 2008 Location: USA Posts: 924	Here is the part you need for the ETX 90. ETX 90/105/125

02-23-2010, 11:45 AM	#4
wildlifephotog Inactive Account Join Date: Nov 2008 Location: USA Posts: 924	USA seller, 5th photo left side of page. Meade Instruments Corporation - ETX Accessories

Digi-Scoping - Telescope(s)

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