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21 Aug 2019

Updated: 21 Aug 2019

Views: 241


For Sale Opt Triad Filter - All-in-one H-Beta, OIII, and H-Alpha bandpass filter

in Filters by BigBanger

For sale by original owner. This is the 1.25" model. Very lightly used (3-5 times) and in excellent condition. Optica...

13 Nov 2017

Views: 193


Wanted Orion Skyglow imaging filter (2")

in Filters by Galen Gilmore

Hello, I am looking for a used Orion Skyglow 2" Imaging filter.

Yesterday, 08:12 PM

Views: 39


Wanted WANTED: 2" Light Pollution Filter

in Filters by Tattooeddeputy

Hello.... Looking for a 2" Light Pollution Filter. Hoping to find one of the following: -Optolong LPro -Astronomik...

25 Jan 2018

Views: 231


For Sale ZWO 31mm Narrowband Filters

in Filters by aashish

New unopened ZWO 31mm Narrowband filters for sale. Retails for 425$. Yours for 350$. PayPal only. Add 3%.

30 Sep 2018

Updated: 30 Sep 2018

Views: 176


For Sale Lumicon 1.25" UHC Filter

in Filters by GNDC

I'm listing the filters I don't use. I mainly use my DSLR by itself now a days. Good condition, a little dust, but th...

16 Jun 2019

Updated: 17 Jun 2019

Views: 151


For Sale Celestron 1.25" color filters in plexiglass cases

in Filters by FC-100N

These are a few extras that have always been gently kept. Just don't need them right now.All Celestron filters are fr...

23 Jun 2019

Views: 92


Wanted 2” round mounted h-alpha filter

in Filters by Bioorganick

Looking to buy a good h-alpha filter. 2” only

31 Aug 2017

Views: 252


For Sale Baader 2" H-Alpha 7nm & Astronomik CSL CCD Filter

in Filters by ckk

1) Baader 2" Narrowband H-Alpha Filter 7nm part no.2458384 in excellent condition. Hard case has some minor scratches...

11 Aug 2019

Views: 101


For Sale Brand New Astrodon OIII (3 nm) filter, 1.25" mounted

in Filters by Poisonokie

I have a brand new, never used Oxygen OIII ( 3nm) Astrodon narrow-band filter in original case. $475.00

03 Sep 2019

Views: 129


For Sale zwo 1.25 lrgb filter set

in Filters by msalcone

Have a set of zwo 1.25" LRGB filters used a couple nights In perfect working condition - just have no use for them...

24 Oct 2017

Updated: 04 Nov 2017

Views: 302


For Sale Orion SCT Visual Back type Nebula Filters

in Filters by Sheldon

Here is some old stock in OEM boxes from my days as an Orion Dealer.Ultrablock Narrowband Visual Back Threaded Filter...

12 Dec 2017

Views: 188


For Sale Meade 1.25" Variable Polarizer very clean JAPAN

in Filters by FC-100N

Have here a 1994-96 years Meade 1.25-inch Variable Polarizer with its original lower cap. Cosmetics are great, but n...

12 Dec 2019

Views: 44


For Sale Sky Glow Broadband Filter - Orion, SCT Rear Cell

in Filters by Stan Lopata

Orion Sky Glow Broadband Filter screws on to the rear cell of many Meade and Celestron SCTs (5" through 11") and othe...

10 Mar 2018

Updated: 11 Mar 2018

Views: 373


For Sale IDAS-L 48mm filter

in Filters by evangarber

IDAS-L 48mm filter $118 Each includes Paypal and shipping in continental US

24 Jun 2018

Updated: 05 Jan 2019

Views: 204


For Sale Meade broadband ,sct rear cell . #911b.

in Filters by rodoruby86

Meade rear cell light pollution broadband filter for Any sct . with original case . PayPal, shipping should be a f...

23 Mar 2019

Views: 186


For Sale Baader Coma Corrector

in Filters by Sevo

I`m selling my Baader Coma Corrector as I moved to SCT and I dont need it anymore. 130$ Shipped worldwide (Buyer cove...

18 Apr 2019

Updated: 30 Apr 2019

Views: 211


For Sale Sold - Optolong L-Pro Astro filter EOS FullFrame

in Filters by bigv

The L-Pro filter from Optolong is a multi-bandpass filter that works well for photographic use with your Canon EOS Fu...

10 Oct 2017

Views: 158


Wanted Photometric V filter

in Filters by nekkar1

I'm looking for a 1,25" photometric V Johnson filter. Very good condition. Thank you. Mario

29 Dec 2017

Views: 390


For Sale Lumicon 1.25" OIII Filter -25.00 - PLEASE READ

in Filters by ruachsheavens

I was told this filter has the beginnings of coating degradation. I guess if you look at it a certain way, you can se...

14 Feb 2018

Views: 191


For Sale 2" William Optics VR-1 Minus-Violet Filter

in Filters by Phillip Creed

I have a 2" William Optics VR-1 minus-violet filter up for sale. This is, IMO, the best "set it and forget it" filter...

16 Sep 2018

Views: 213


For Sale Baader IR-Cut Neodymium Moon & Skyglow Filter - 1.25"

in Filters by paolotto

I am selling a lightly used Baader Neodymium filter. It does a good job of increasing contrast for planets and other...

26 Sep 2018

Updated: 30 Sep 2018

Views: 182


For Sale Orion UltraBlock & Baader Contrast Booster filters

in Filters by Pat Rochford

Orion 1 1/4" UltraBlock filter in excellent condition (with case) - $45 shipped in CONUS. SOLDBaader 1 1/4" Contrast...

20 Sep 2017

Views: 289


For Sale Baader 2" UHC-S Nebula Filter

in Filters by satha52

Hi All, Selling my Baader 2" UHC-S Nebula Filter. This blocks out everything except Ha, Hb, and OIII. It also sign...

15 Oct 2017

Updated: 16 Oct 2017

Views: 309


For Sale CCTS oxygen 3 light polution filter 2"

in Filters by Unlorja

This is a brand new filter i received in a trade. Its in excellent condition. Original is $119.99. comes with box and...

04 Jan 2018

Views: 231


For Sale Celestron O III filter 2” Filter

in Filters by lenrabinowitz

For sale is a used Celestron O III 2” filter. It is about 2 years old. Very little use on it; excellent condition....

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