Filter Orientation and Differences

Focusers, Filters, Barlows etc..

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John_Gill
Posts: 12
Joined: Wed Jan 23, 2019 6:33 am

Filter Orientation and Differences

Post by John_Gill » Sat Apr 04, 2020 10:41 am

Hi,

About a year ago I bought a ASI1600mmPro Camera and LRGB and NB filters.

1. What is the correct orientation for the LRGB and NB filters?
2. How can you tell which is the Red/Green filter as they look almost identical?

Regards
John

Moson
Posts: 205
Joined: Wed Apr 01, 2020 8:28 am

Re: Filter Orientation and Differences

Post by Moson » Fri Apr 10, 2020 9:34 am

There is no difference in the orientation of the LRGB and narrowband filters.
If you holds a framed filter, there is an LRGB mark on the frame.Or you can check the logo on the package.

John_Gill
Posts: 12
Joined: Wed Jan 23, 2019 6:33 am

Re: Filter Orientation and Differences

Post by John_Gill » Sun Apr 12, 2020 8:51 am

These are unmounted ZWO 36mm filters (LRGB & NB) and there are no marking on the edge of the filter. Orientation does matter, as one side is more reflective than the other ...

Moson
Posts: 205
Joined: Wed Apr 01, 2020 8:28 am

Re: Filter Orientation and Differences

Post by Moson » Fri Apr 17, 2020 7:59 am

1.You can follow the attachments.(ps. Both side of new OIII filter will be fine.)
2.You can judge the LRGB filters by their color.
Attachments
SII-compare1.jpg
LRGB-judge.jpg
Ha-compare1.jpg

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