ASI6200 nosepiece flange backfocus

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npb
Posts: 4
Joined: Mon Dec 09, 2019 11:54 pm

ASI6200 nosepiece flange backfocus

Post by npb » Tue Dec 10, 2019 2:06 am

Hi ZWO,
I will be using the “M54M-M48F 21” nosepiece with a 2 inch eyepiece clamp. The optical length for this application is the flange thickness. Can you tell me what that dimension is?

Thank you,
Nick
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Support1@ZWO
Posts: 520
Joined: Fri Dec 07, 2018 10:24 am

Re: ASI6200 nosepiece flange backfocus

Post by Support1@ZWO » Wed Dec 11, 2019 6:42 am

Hi Nick,
Could you tell me where did you see this adapter?
I did not see this adapter in our website and does not know the flange distance...

npb
Posts: 4
Joined: Mon Dec 09, 2019 11:54 pm

Re: ASI6200 nosepiece flange backfocus

Post by npb » Wed Dec 11, 2019 11:05 am

Hi Katherine,
It is the nosepiece that comes with the new ASI6200 (https://astronomy-imaging-camera.com/pr ... -pro-color). This camera is supposed to be released sometime in January. It was also used on the ASI094 and ASI128, that have been discontinued.
I did find one vendor that carries this nosepiece (https://www.365astronomy.com/zwo-m54-ma ... ength.html).

Thank you,
Nick

Support1@ZWO
Posts: 520
Joined: Fri Dec 07, 2018 10:24 am

Re: ASI6200 nosepiece flange backfocus

Post by Support1@ZWO » Thu Dec 12, 2019 9:11 am

As it is shown in its name, the extension distance is 21mm.

Chuckwagon
Posts: 29
Joined: Tue Dec 04, 2018 3:52 pm

Re: ASI6200 nosepiece flange backfocus

Post by Chuckwagon » Thu Dec 12, 2019 9:18 am

I think the question is about the little flange at the base. I'd guess it's only 2mm or so thick.

To NPB, why the concern? Are you trying to use a focal reducer or a flattener and have a specific spacing you are trying for?

npb
Posts: 4
Joined: Mon Dec 09, 2019 11:54 pm

Re: ASI6200 nosepiece flange backfocus

Post by npb » Thu Dec 12, 2019 9:41 am

Hi Chuckwagon,
I am using this with a ASA corrector and need a precise backfocus. Even though the ASI6200 cameras won’t arrive until January, I would like to get a PreciseParts adapter (corrector to Clicklock) on order.

I think it is 2mm as well, but could not find a specification anywhere. I actually just ordered this nosepiece from 365astronomy to get an accurate measurement (and have a spare nosepiece).

Nick

Support1@ZWO
Posts: 520
Joined: Fri Dec 07, 2018 10:24 am

Re: ASI6200 nosepiece flange backfocus

Post by Support1@ZWO » Fri Dec 13, 2019 7:04 am

the thickness is 1.5mm

npb
Posts: 4
Joined: Mon Dec 09, 2019 11:54 pm

Re: ASI6200 nosepiece flange backfocus

Post by npb » Fri Dec 13, 2019 9:52 am

Thanks Katherine!

Nick

Support1@ZWO
Posts: 520
Joined: Fri Dec 07, 2018 10:24 am

Re: ASI6200 nosepiece flange backfocus

Post by Support1@ZWO » Mon Dec 16, 2019 7:59 am

No problem.:)

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