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20 Mar 2019

Views: 122

Sold!
$30.00

For Sale Celestron 1.25" UHC/LPR Filter


in Filters by equifire

I used this filter to reduce the effects of light pollution in my area. However I find lately I haven't been using i...

04 Apr 2019

Views: 94

Found!
$200.00

Wanted Heuib-ii QRO


in Filters by Cancington42

i’m looking for the heuib-ii QRO. I just talked to idas and they were discontinued last year. If anyone has one at 52...

19 May 2019

Views: 103

Sold!
$140.00

For Sale ZWO LRGB 36 mm filters


in Filters by gatsbyiv

I bought a ZWO camera on astromart, but I already have a set of 36mm filters, so I don't need these. 30% off new pri...

18 Jun 2019

Views: 143

Sold!
$159.00

For Sale ZWO EFW Mini 5 position filter wheel


in Filters by reddog1972

Hello - I'm selling my second ZWO EFW mini 5 position electronic filter wheel in excellent condition with original bo...

29 Jun 2019

Updated: 09 Jul 2019

Views: 97

UPDATED
$25.00

For Sale Orion 1.25" 05514 Planetary Filter Set 4pcs..


in Filters by jeffr40

Orion #05514 "Color Filter Set, Basic, 1.25", set of four planetary color filters, one each yellow, green, blue and r...

10 Oct 2017

Updated: 12 Oct 2017

Views: 307

Sold!
$70.00

For Sale Lumicon Oxygen Filter 1.25" *Reduced*


in Filters by JRT3

The glass is in great condition with a few dust particles. I never bothered to clean it as I didn't want to risk dama...

15 Oct 2017

Views: 228

Sold!
$135.00

For Sale Hutech 2" IDAS LPS filter


in Filters by richard hoyt

I just recently sold my telescope so i am now selling my filters and eyepieces. This filter comes with box and will i...

17 Dec 2019

Views: 45

Offer Pending
n/a

Wanted Lumicon UHC 1.25" filter


in Filters by Dominic

Hi, I.m looking for that filter in very good condition. Show me what you got! I'm living in Quebec, Canada. thanks

07 Jan 2020

Views: 41


$10.00

For Sale Celestron No. 8 Eyepiece Filter - Boxed and Cased - Japan


in Filters by davela

I am selling one Celestron Number 8 eyepiece filter (1.25" fit) with original box and case in excellent condition (ha...

13 Mar 2018

Views: 206

Sold!
$130.00

For Sale ASTRONOMIK 12nm HB CCD EOS CLIP FILTER


in Filters by Venturous1

For sale is an unused Astronomik 12nm Hydrogen Beta CCD clip filter for Canon EOS cameras. I bought this a while ago,...

06 Apr 2018

Views: 193

Sold!
$100.00

For Sale New ZWO LRGB filters 1.25 inch


in Filters by mistateo

Hey everyone, I have a set of the New ZWO LRGB filters for sale. They are in very good condition, and have only been...

07 Dec 2018

Views: 144

Sold!
$52.00

For Sale Zhumell 2 inch UHC filter.


in Filters by mak77

a Zhumell 2 inch UHC with box, Filter in excellent condition, clean glass and ring. $52 shipped. ConUS sale. Thanks f...

31 May 2019

Views: 67

Found!
n/a

Wanted WTB: Lumicon 2" OIII filter


in Filters by PJ Anway

Looking for a Lumicon 2" OIII filter. If you have one to sell, please respond with condition and price.

11 Jun 2017

Updated: 01 Jul 2017

Views: 234

UPDATED
$8.00

For Sale Celestron 1.25" Polarizing filter with case


in Filters by James Bielaga

I have one Celestron 1.25" Polarizing filter with case. I can ship in USA for $1.00 Canada for a little more. I can...

18 Jun 2017

Views: 201


n/a

Wanted Questar 3.5 off-axis solar filter


in Filters by Paul Schroeder

I'm looking for a Questar off-axis solar filter, the one that threads onto the end of a Questar 3.5 (see attached pho...

21 Aug 2019

Updated: 21 Aug 2019

Views: 248

Sold!
$295.00

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: 196


$1.00

Wanted Orion Skyglow imaging filter (2")


in Filters by Galen Gilmore

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

25 Jan 2018

Views: 236


$350.00

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%.

02 Jan 2020

Updated: 03 Jan 2020

Views: 218

Sold!
$1,600.00

For Sale Astrodon 36mm unmounted 3nm Ha, SII, OIII


in Filters by collaredkeeper

Hello all, I am selling an Astrodon 36mm unmounted 3nm narrowband filter set. I am not looking to split them up for...

30 Sep 2018

Updated: 30 Sep 2018

Views: 180

Sold!
$40.00

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: 161

Sold!
$6.00

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: 99


n/a

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: 256

Sold!
$200.00

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...

03 Sep 2019

Views: 136

Sold!
$55.00

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: 306

UPDATED
n/a

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...

CNers have asked about a donation box for Cloudy Nights over the years, so here you go. Donation is not required by any means, so please enjoy your stay.


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