Color Filter 4 in 1 Package

              
                                                Color Filter Single Package 1.25" & 2"

Eyepiece filters are an invaluable aid in lunar and planetary observing. They reduce glare and light scattering, increase contrast through selective filtration, increase definition and resolution, reduce irradiation and lessen eye fatigue.

GSO filters are made of high quality, solid plane parallel glass with excellent homogeneity. They are anti-reflection coated to prevent glaring and ghosting. All eyepiece filters are threaded to fit GSO and most other manufacturers 1.25" eyepieces and offer a full 26mm clear aperture. 

Color available as follow:

AD050  #58 Dark Green 24% T

AD051  #56 Light Green 53% T

AD052  #38A Dark Blue 17% T

AD053  #80A Medium Blue 30% T

AD054  #82A Light Blue 73% T

AD055  #15A Dark Yellow Filter

AD056  #12 Deep Yellow 74% T

AD057  #8 Light Yellow 83% T

AD058  #11 Yellow/Green Filter

AD059  #25 Red 14% T

AD060  #23A Light Red Filter

AD061  #47 Violet 3% T

AD062  #21 Orange 46% T

AD063  #29 Dark Red Filter

AD083  #96ND 50% T – Density 0.3

AD084  #96ND 25% T – Density 0.6

AD085  #96ND 13% T – Density 0.9

AD068  GSO MOON Filter