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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 Product
Excellent Product
Optolong LRGB Imaging Filter Set - 1.25
Optolong LRGB Imaging Filter Set - 1.25"
5.0
Optolong 2” LRGB filter set
I’m using these filters with my Altair 183m monochrome camera. The filters are installed on a 6 position Orion 2” filter slide. This combination provides excellent images for post processing with small adjustments required in focus between images...
Baader Premium Eyepiece Filter: Yellow, 495nm Longpass - 1.25
Baader Premium Eyepiece Filter: Yellow, 495nm Longpass - 1.25" # FCFY-1 2458301
5.0
Solid Chromatic Aberration Removal
Following the advise of experienced owners of fast acromats, there was a higher preference towards the 495LP over the Fringe Killer to remove CA. I have done basic tests and found the CA to be under control in my G'n'G SW120ST. Star fields ...
DayStar Original Quark Eyepiece Solar Filter for Refractors: H-Alpha Prominence Model # DSZ4P
DayStar Original Quark Eyepiece Solar Filter for Refractors: H-Alpha Prominence Model...
4.0
Great but
Negative point: As the product is shielded and I do not have technical assistance in my country, I would like electrical connection to be stronger. It seems a fragile.
ZWO 1.25
ZWO 1.25" IR Cut Filter # IRCUT1
5.0
ZWO IR Cut
Works to keep the star bloat down.
Baader Double Stacked Solar Continuum Filter - 1.25
Baader Double Stacked Solar Continuum Filter - 1.25" # FSOL-1D 2458392
5.0
Solar Continuum Double Stack
Esse filtro faz o que promete! Já tive um simples antes, mas esse duplo melhora ainda mais o contraste na superfície do Sol, deixando os granulos solares e as células de convecção muito mais fáceis de serem fotografadas. Meu uso é basicamente ...
Optolong City Light Supression / Light Pollution Reduction CLS-CCD Filter - 1.25
Optolong City Light Supression / Light Pollution Reduction CLS-CCD Filter - 1.25"
5.0
CLS-CCD filter
I live in a heavily light-polluted city and this filter has become my go-to imaging filter. A great filter for anyone who deals with city viewing.
Celestron 1.25
Celestron 1.25" Moon Filter # 94119-A
5.0
Celestron moon filter
I found this to be inexpensive and very useful in looking at a bright moon phase.
ZWO 5-Position Electronic Filter Wheel for 1.25
ZWO 5-Position Electronic Filter Wheel for 1.25" or 31mm Filters # EFWMINI
5.0
ZWO 5 position electronic filter wheel for 1.25" filters
The EFW from ZWO is an excellent addition to an astro imaging setup for your monochrome camera. It works seemlessly with my ZWO ASI camera and capture software. AgenaAstro provides great service and fast shipping.
Lumicon Ultra High Contrast UHC Filter - 1.25
Lumicon Ultra High Contrast UHC Filter - 1.25" # LF3025
5.0
Lumicon UHC 1.25" filter
Excellent optical quality
Lumicon Ultra High Contrast UHC Filter - 1.25
Lumicon Ultra High Contrast UHC Filter - 1.25" # LF3025
5.0
The one to buy
If you're going to get one filter I recommend this one. Excellent optical quality with no ghost images. Great views of many nebula from under Los Angeles light pollution.
ZWO 1.25
ZWO 1.25" IR Cut Filter # IRCUT1
5.0
Quality filter at a reasonable price
Purchased this filter for my ASI-290 mini guide camera. Fit and finish is great and the filter provides the proper wavelength cut to improve the guide camera image. Highly recommend!
Lunt Solar LS50C Compact Double Stack Filter # LS50C
Lunt Solar LS50C Compact Double Stack Filter # LS50C
5.0
Ls50c - a wolf in sheeps clothing
I bought this etalon with the intention of using it in a modified telescope. I placed the h-alpha filter in a modkit shroud housing so it can be mounted at the focuser. Because this etalon is airspaced, unobstructed, compact, and 50mm it is easily ad...
Celestron Telescope UHC/LPR Filter - 1.25
Celestron Telescope UHC/LPR Filter - 1.25" # 94123
4.0
To obtain better contrast in emision nebulas
Tested from my backyard
Optolong Hydrogen Beta Narrowband (25nm) Filter - 1.25
Optolong Hydrogen Beta Narrowband (25nm) Filter - 1.25"
4.0
Good product but it doesn´t make miracles
You really need good conditions to see the Horsehead or California nebulas even using this filter
ZWO 1.25
ZWO 1.25" 5 Filter Manual Filter Wheel # FW
5.0
Great quality
Works well!
Lumicon Single Polarizer Filter - 2
Lumicon Single Polarizer Filter - 2" # LF2110
5.0
beautiful useful filter
Lumicon 48 mm polarizer filter nicely packaged too . quick expedited shipping.
GSO 1.25
GSO 1.25" Color / Planetary Filter - #23A Light Red
5.0
Top Notch To My Eye & Standards
I recently ordered this #23A Lt. Red GSO to replace an oldie 23A as it developed streaks and spots. It was from an outfit called 'Pro-Optic' back around 2002. Getting this new one from GSO through Agena was the last of the Pro-Optics I had....
Brandon 1.25
Brandon 1.25" Color / Planetary Filter for Brandon Oculars - #23A Light Red
5.0
Brandon 23A filter
This filter worked great for viewing Mars. It is well made and finished, has clean threads, works smoothly all my Brandon eyepieces (new and old), is great optically and has been very useful with different telescopes.