UV-IR cut filter

ASI's Range of Specialised CMOS camera's

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bellavia
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Joined: Mon Nov 27, 2017 2:15 am

UV-IR cut filter

Post by bellavia » Sat May 12, 2018 8:07 pm

Hi,
Does the 183MC and/or the 183MM have a UV-IR cut filter?
I own both (cooled, pro models) and want to know if this might be a reason I am getting halos around stars?
I am also not getting much color with the color version. Perhaps it is getting washed out in UV and IR?
Thanks!
Steve

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Support@ZWO
Posts: 744
Joined: Mon Apr 24, 2017 10:08 am

Re: UV-IR cut filter

Post by Support@ZWO » Mon May 14, 2018 8:43 am

No, They both use AR coated protective window.
Protective window won't cause halos.
Location:lon=120.6 lat=31.3
Suzhou China

bellavia
Posts: 23
Joined: Mon Nov 27, 2017 2:15 am

Re: UV-IR cut filter

Post by bellavia » Mon May 14, 2018 2:20 pm

Sean.Wang wrote:No, They both use AR coated protective window.
Protective window won't cause halos.
So the full spectrum of light is allowed in, correct? (Similar to the ASI 224).

If true, this is good news, as a cut filter (or semi-apo filter) will produce sharper stars with less halos, using my 2-element flourite refractor.

Thank you!

Steve

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Support@ZWO
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Re: UV-IR cut filter

Post by Support@ZWO » Fri May 18, 2018 5:26 am

Yes, it just like 224.
Location:lon=120.6 lat=31.3
Suzhou China

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