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View the Latest Filter Reviews

Item
Submitted By
Optolong Ultra High Contrast UHC Nebula Filter - 1.25
Optolong Ultra High Contrast UHC Nebula Filter - 1.25"
5.0
Excellent Clip-in Filter for Nikon D7100
This filter’s performance exceeds my expectations. I shoot from a suburban backyard with light pollution from Baltimore to the Northwest, Annapolis to the North, and Washington DC to the West. I am getting images with this filter I could not have d...
GSO 1.25
GSO 1.25" Polarizing Filter
4.0
works good
works good
Optolong LRGB Imaging Filter Set - 1.25
Optolong LRGB Imaging Filter Set - 1.25"
5.0
Optolong LRGB 2" filters
I have used Optolong filters in the past and have always been impressed. I also have ordered many items from Agena and have been equally impressed.
Baader AstroSolar Filter for Telescopes - 80mm Filter Aperture # ASTF-80
Baader AstroSolar Filter for Telescopes - 80mm Filter Aperture # ASTF-80
5.0
Excellent quality
The filter works great on a CPC800. The radially adjustable studs and Velcro straps insure a snug, secure fit. The detail seen us FAR superior to float glass or polymer filters!
Optolong City Light Supression / Light Pollution Reduction CLS Filter - 1.25
Optolong City Light Supression / Light Pollution Reduction CLS Filter - 1.25"
5.0
Fantastic Service
Tom really was patient with a newbie astrophotographer, helped me identify the adapters I needed and got them out next day. Highly recommended!
Meade Series 4000 #3200 Lunar And Planetary Color Filter Set  # 07544
Meade Series 4000 #3200 Lunar And Planetary Color Filter Set # 07544
5.0
Great Set
This is an excellent filter set for observing the moon and the planets to offset any glare that may exist. I highly recommend it!
Celestron 1.25
Celestron 1.25" Moon Filter # 94119-A
5.0
Moonlight
This filter is great for reducing the glare from the moon in your telescope eyepiece. You are able to see more detail on the moon!
GSO 1.25
GSO 1.25" Color / Planetary Filter - #58A Dark Green
5.0
Colour Filter
We were very impressed with the quick and well packaged item we received.
Baader Neutral Density Filter ND-0.6 25% Transmission - 1.25
Baader Neutral Density Filter ND-0.6 25% Transmission - 1.25" # FND0-1 2458343
5.0
Great filter
I needed darker than the usual moon filters for viewing a full moon. I felt like wearing sunglasses along with the lighter filter. This did the job, along with the usual Baader quality!
GSO 1.25
GSO 1.25" Color / Planetary Filter - #47 Violet
5.0
Great filter.
Great filter.
Baader Canon EOS DSLR T-Ring with Clear Filter # DSLR-CLR 2958550C
Baader Canon EOS DSLR T-Ring with Clear Filter # DSLR-CLR 2958550C
5.0
The best.
After using a few different brands of T adapters I have to say I've never had any with a sloppy fit. The Baader stands out with the ability to place a filter in it. Keeps your camera sealed and clean inside. It comes with several different parts...
Optolong Hydrogen Alpha Narrowband (12nm) CCD Filter - 1.25
Optolong Hydrogen Alpha Narrowband (12nm) CCD Filter - 1.25"
5.0
Great product & service
Kudos to Agena Astro. They delayed the shipment a few days at my request.
GSO 1.25
GSO 1.25" Polarizing Filter
5.0
Good filter
It is a basic polarizing filter for a good price. If you want a variable filter you must buy another one to get the property.
GSO 1.25
GSO 1.25" Polarizing Filter
5.0
I love it
I can control the light easily with them. You should get two filters. Excellent product!
Celestron Oxygen III Narrowband Telescope Filter - 1.25
Celestron Oxygen III Narrowband Telescope Filter - 1.25" # 93623
5.0
Celestron Oxygen III Narrowband Telescope Filter
This filter is not very useful for planets, galaxies or globular clusters. However, for many nebulae, the distinction in light polluted skies is remarkable. The Dumbbell and Ring Nebulae are much more clearly defined in urban/suburban skies with it. ...
Optolong Hydrogen Alpha Narrowband (12nm) CCD Filter - 1.25
Optolong Hydrogen Alpha Narrowband (12nm) CCD Filter - 1.25"
5.0
Nice filter
Works well as advertised. Nice piece of equipment.
Baader Neutral Density Filter ND-0.6 25% Transmission - 1.25
Baader Neutral Density Filter ND-0.6 25% Transmission - 1.25" # FND0-1 2458343
5.0
Does exactly what it should
Reduces the brightness without loss of contrast. One may even say it increases contrast since your eye is more relaxed. Recommended.
GSO 1.25
GSO 1.25" Color / Planetary Filter - #80A Medium Blue
4.0
Basic blue filter
I had discovered that my old blue filter had become damaged, so I ordered this one as a replacement. Looks and works well.
Baader Calcium K-Line Filter - 1.25
Baader Calcium K-Line Filter - 1.25" # CaK 2458355
4.0
Baader Ca K-line
Um ótimo filtro para quem ainda não pode investir em um setup avançado. Faz aquilo que promete e muito bem.