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View the Latest Filter Reviews

Item
Submitted By
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.
Meade Series 4000 #3200 Lunar And Planetary Color Filter Set  # 07544
Meade Series 4000 #3200 Lunar And Planetary Color Filter Set # 07544
5.0
Agena telescope filter set
Good quality with metal bezels (not plastic) and very economical. Easy on & off from all 1.25mm eyepieces. Agena delivered them promptly. The filters enhanced my planetary and stellar viewing. I highly recommend them.
BST 2
BST 2" Variable Transmission Polarizing Filter
5.0
A must for viewing the moon
This made viewing the moon a much more pleasant experience. The variable filter makes it convenient for both full and less-than full moon viewing. I am no longer nearly blinded after viewing, and they didn’t seeem to affect contrast.
ZWO 1.25
ZWO 1.25" 850nm IR Pass Filter # IR850NM1
5.0
Great Filter to Have
Construction is robust, and threads fit nicely in all my equipment. The lens and coatings are well executed. Images are very nice throughout the field of view, no distortions or other aberrations. This filter passes high into the IR band, thus it is...
Baader UV-IR-CUT Filter - 1.25
Baader UV-IR-CUT Filter - 1.25" # FUVIR-1 2459207A
5.0
UV/IR-Cut/L filter
It fits the need that I have for solar imaging/viewing. Highest quality. I like that the filter cases attach together.
Optolong IR Pass (685nm) Filter - 1.25
Optolong IR Pass (685nm) Filter - 1.25"
5.0
Great filter for IR imaging
Very good filter at a reasonable price. Images taken with it are sharp and detailed, no distortions. Filter threads on my cameras and other accessories well, not sloppy, not too tight. I place it on par with my Baader and other high quality filters.
ZWO 1.25
ZWO 1.25" IR Cut Filter # IRCUT1
5.0
Dark sky color correction
I was advised by zwo to use this filter to balance the extra green (rggb) found in the cmos sensor of the new and wonderful asi294mv pro camera. This filter worked as expected. The color out of the camera was beautiful.
Baader Premium Eyepiece Filter: Set of 6 Color Filters - 1.25
Baader Premium Eyepiece Filter: Set of 6 Color Filters - 1.25" # FCFS-1 2458300
5.0
Best Color Filters I Have Ever Used
So far, I have used the light blue and dark blue filters on Jupiter and Venus with greater success than any other filters I have used. The green one works well on the Moon, especially when it is near full. I expect the orange to work well on Mars, bu...
Lumicon Neutral Density Filter ND50 50% Transmission - 1.25
Lumicon Neutral Density Filter ND50 50% Transmission - 1.25" # LF1090
5.0
Fast Delivery
This was my first purchase from Agena. The ordering was easy and I received my filter earlier than expected!
ZWO 1.25
ZWO 1.25" IR Cut Filter # IRCUT1
4.0
2 inch zwo ir cut filter
Good quality filter, a must have for one shot
Color imaging cameras.