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View the Latest Filter Reviews

Item
Submitted By
ZWO 1.25
ZWO 1.25" IR Cut Filter # IRCUT1
5.0
Essential
If you are converting your old web cameras or photo scanners into telescopic eyepieces you will need this. Commonly the color looks washed out and the images can't seem to focus, this is because of infrared is not filtered out in the original de...
Brandon 1.25
Brandon 1.25" Color / Planetary Filter for Brandon Oculars - #85 Salmon
5.0
Special Salmon (Amber) Colored Filter, Wratten 85
Very useful amber colored filter for Mars, planetary and lunar targets.

This filter fits only Brandon eyepieces, unless the special Agena adapter is ordered, which I did.
GSO 1.25
GSO 1.25" Color / Planetary Filter - #80A Medium Blue
5.0
great transaction, quick shipment, quality
great transaction, quick shipment, quality product
ZWO 5-Position Electronic Filter Wheel for 1.25
ZWO 5-Position Electronic Filter Wheel for 1.25" or 31mm Filters # EFWMINI
5.0
Works perfectly with Sharpcap and
Works perfectly with Sharpcap and my asi294mc pro! The only thing I will mention is make sure you place the paper spacers so extension tubes etc. do not bind.
Lumicon Color / Planetary Filter #82A Light Blue - 1.25
Lumicon Color / Planetary Filter #82A Light Blue - 1.25" # LF1075
5.0
Lumicon Planetary Filter 82A
This filter works great on my 6 inch Mak-Cass scope. Great views of Mars, Saturn and the moon.
Celestron Oxygen III Narrowband Telescope Filter - 1.25
Celestron Oxygen III Narrowband Telescope Filter - 1.25" # 93623
5.0
2” Celestron Oiii narrowband filter
Works excellent on my Explore Scientific 127mm. Tested early morning Aug 2018 on Orion Nebula in East horizon. Brings out nebulosity quite well.
JAS in Arizona
Meade Series 4000 #905 1.25
Meade Series 4000 #905 1.25" Variable Polarizing Filter # 07286
5.0
Meade variable filter
Well made nice wuality
ZWO 1.25
ZWO 1.25" 850nm IR Pass Filter # IR850NM1
5.0
great for the moon
so fare I have only used it for the moon and it worked great
Lumicon Color / Planetary Filter #82A Light Blue - 1.25
Lumicon Color / Planetary Filter #82A Light Blue - 1.25" # LF1075
5.0
Lumicon is quality.
Lumicon is quality.
Baader Contrast-Booster Filter - 1.25
Baader Contrast-Booster Filter - 1.25" # FCB-1 2458360
5.0
Great Filter Great Service
This filter really does enhance the contrast of planets and Nebula and is a must for all amature astronomers.
The service and pricing provided by Agena is outstanding, I would recommend them highly to anyone.
ZWO 1.25
ZWO 1.25" IR Cut Filter # IRCUT1
5.0
Works Like a Charm!
I bought this filter especially for my newly-acquired ZWO ASI224MC camera to add clarity to my images. It easily attaches to the front of the camera and cuts not only IR but UV as well. It made a noticeable difference in my images, just allowing visi...
ZWO 1.25
ZWO 1.25" 850nm IR Pass Filter # IR850NM1
4.0
IR pass filter
Works well as intended
Baader Contrast-Booster Filter - 1.25
Baader Contrast-Booster Filter - 1.25" # FCB-1 2458360
5.0
Baader Contrast Booster
Nice filter that seemed to yield better view of Jupiter and Mars.
GSO 1.25
GSO 1.25" Color / Planetary Filter - #21 Orange
5.0
Nice filter
Used it for Mars opposition. Worked well. Fit my eyepieces from Meade, Celestron, and GSO
GSO 1.25
GSO 1.25" Polarizing Filter
5.0
two filters to rule the planets and moon
I purchased two of these filters to use on the planets and the moon. One on the diagonal and one on the eyepiece allows fine tuning of the brightness levels. These are well made and the threads are smooth. A lot of visual impact for a little price.
Baader H-Alpha 35nm CCD Filter - 1.25
Baader H-Alpha 35nm CCD Filter - 1.25" # FHAL-1 2458381
5.0
Works as I expected
Went with the Higher bandpass because I use a OSC camera and wanted something that I could blend into standard color images to accentuate the H-Alpha areas and so far have been very satisfied
Lumicon Night Sky Hydrogen-Alpha Filter - 1.25
Lumicon Night Sky Hydrogen-Alpha Filter - 1.25" # LF3085
5.0
Great with Night Vision
This is a great filter for moderate light polluted skies and a night vision device. I use this with my PVS-7 and it cuts a lot of light pollution, darkens the background, and still allows nebula to be seen. A great addition to a 7nm Ha filter and a 6...
Optolong Venus & Ultraviolet Venus-U Filter - 1.25
Optolong Venus & Ultraviolet Venus-U Filter - 1.25"
5.0
Good value
I've used this filter several times to try to capture the clouds on Venus (along with an IR850 filter). Conditions haven't been in my favor, but the filter seems to be doing its job, and I get cloud bands. The filter appears completely dark...
ZWO 1.25
ZWO 1.25" IR Cut Filter # IRCUT1
5.0
It works as advertised
It cuts IR light from reaching my ZWO ASI290MC. Nicely priced, too.