#1  
Old 20-04-2024, 05:30 PM
mtodman's Avatar
mtodman (Matt)
Registered User

mtodman is offline
 
Join Date: Oct 2007
Location: Arcadia, NSW, Australia
Posts: 191
Need help identifying NB Filters

Hi all.

I recently acquired an SBIG STT8300M with an 8 position filter wheel + filters. Problem is that I wasn't provided with the filter positions in the filter wheel.
I've figured out the RGB filter positions but I'm struggling to identify the Ha, Oiii & Sii filter positions.

I've recently taken some images NB of IC2944 (running Chicken Nebula) which I've attached.
Just wondering if someone could take a look and give me their best guess as to which images corresponds with which NB filter? My guess is that Filter 1 is Ha but I'm not sure about the other 2.

Alternatively, if someone could provide me with images of their NB filter shots of IC2944, that would be muchly appreciated.

Thanks

Matt
Attached Thumbnails
Click for full-size image (masterLight_BIN-1_3358x2536_EXPOSURE-600.00s_NB-FILTER-1.jpg)
191.4 KB11 views
Click for full-size image (masterLight_BIN-1_3358x2536_EXPOSURE-600.00s_NB-FILTER-2.jpg)
207.2 KB11 views
Click for full-size image (masterLight_BIN-1_3358x2536_EXPOSURE-600.00s_NB-FILTER-3.jpg)
205.0 KB11 views
Reply With Quote
  #2  
Old 20-04-2024, 05:49 PM
Atmos's Avatar
Atmos (Colin)
Ultimate Noob

Atmos is offline
 
Join Date: Aug 2011
Location: Melbourne
Posts: 6,996
I would say Ha, SII & OIII respectively.
Reply With Quote
  #3  
Old 20-04-2024, 07:37 PM
Startrek (Martin)
Registered User

Startrek is offline
 
Join Date: Dec 2017
Location: Sydney and South Coast NSW
Posts: 6,094
Iíll second Atmos
Ha the strongest signal followed by Sii the weakest and Oiii midway

Cheers
Martin
Reply With Quote
  #4  
Old 20-04-2024, 07:40 PM
Geochron (Jon)
Registered User

Geochron is offline
 
Join Date: Jan 2021
Location: Nillumbik, Melbourne
Posts: 30
I had a similar problem a while back and found an answer in a post on Cloudy Nights.

The upshot was that when looking through the filter in daylight, the SII will look red, the Ha will look a brighter red, and the OIII will look blue'.

This seemed to work for me

cheers, Jon
Reply With Quote
  #5  
Old 20-04-2024, 08:21 PM
mtodman's Avatar
mtodman (Matt)
Registered User

mtodman is offline
 
Join Date: Oct 2007
Location: Arcadia, NSW, Australia
Posts: 191
Thanks Gents.

I'll try setting the filters accordingly.
If all else fails, I'll follow Jon's suggestion.
Reply With Quote
Reply

Bookmarks

Thread Tools
Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT +10. The time is now 07:32 PM.

Powered by vBulletin Version 3.8.7 | Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Advertisement
Bintel
Advertisement
Testar
Advertisement