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Old 26-11-2011, 05:13 PM
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pmrid (Peter)
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William Optics Flattener-Reducer

Has anyone had any experience with one of these - William Optics Flattener 4 - AFR-IV

Peter
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Old 26-11-2011, 06:50 PM
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wasyoungonce (Brendan)
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Hi Peter......looking to use one with the 127ED?

Come in spinner...please tell me how you go.

I am using a TV RFL-4087 (.8x reducer/flattener) with less than optimal results. It's better but not perfect. The reduction to F6 however......makes the 127ED a real nice performer!

If you want I can send it to you to try. Maybe you will get better results or look at things differently to me?

I also have the TV 2.4 inch adaptors/connectors/filter holder and custom 2.4 inch to ML 2.5" focuser DT adaptor.

Email me if you would like to give it a try.

edit:
I really haven't finished testing it out...i have a few more test to run but since I haven't seen the sky for months then you may have better use for it ATM.
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Old 27-11-2011, 12:46 AM
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pmrid (Peter)
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Quote:
Originally Posted by wasyoungonce View Post
Hi Peter......looking to use one with the 127ED?

Come in spinner...please tell me how you go.

I am using a TV RFL-4087 (.8x reducer/flattener) with less than optimal results. It's better but not perfect. The reduction to F6 however......makes the 127ED a real nice performer!

If you want I can send it to you to try. Maybe you will get better results or look at things differently to me?

I also have the TV 2.4 inch adaptors/connectors/filter holder and custom 2.4 inch to ML 2.5" focuser DT adaptor.

Email me if you would like to give it a try.

edit:
I really haven't finished testing it out...i have a few more test to run but since I haven't seen the sky for months then you may have better use for it ATM.
Thanks again Brendan. You're right. It's for the 127. I have ordered one - just wanted to test the waters to see if anyone else had any cautionary tales to tell about them.
I really appreciate tyhe offer of a loan of the TV. You're very generous to do that. I'll see how the WO turns out and if it isn't much chop, perhaps we could compare notes afterwards.
Peter
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Old 27-11-2011, 06:46 AM
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troypiggo (Troy)
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I have one. After testing several other flatteners for my ED80, it's the only one that worked. Check the specs as I think it's suited to a specific focal length range.
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Old 27-11-2011, 04:18 PM
gbeal
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Give the AP67CCD a go as well, it worked on mine.
Gary
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Old 27-11-2011, 05:22 PM
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wasyoungonce (Brendan)
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Give the AP67CCD a go as well, it worked on mine.
Gary
Hi Gary..I cannot find it on the AP site?

Brendan
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Old 27-11-2011, 05:51 PM
gbeal
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Try the Astro-Physics site Brendan, part way down in the Products section.
Designed for slower refractors, and the Mak, but it works OK with my RC8" and also the ED127 (IIRC).
http://www.astro-physics.com/index.h...ducts/products
Gary
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Old 27-11-2011, 06:23 PM
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RickS (Rick)
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Quote:
Originally Posted by wasyoungonce View Post
Hi Gary..I cannot find it on the AP site?
The exact part code is "CCDT67".

I'm using their 27TVPH reducer with my GSO RC10. Might be worth looking at if you need a reducer with a bigger image circle.

Cheers,
Rick.
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