Svbony SV139 1.25" Neutral Density Filter For Moon Viewing

SvbonySKU: W9108A

Style: Neutral Density 0.6
Sale price$13 CAD
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SVBONY SV139 Neutral Density(ND) filter is suitable for 1.25-inch eyepieces. The filter can reduce the overall brightness of the moon's surface.  so you can see more details and surface features of moon with your telescope.  There are several different strengths.

The 1.25'' Neutral Density Moon filter reduces glare, so you can see more lunar details and surface features with your telescope. The metal filter cell threads directly into the 1.25'' barrel of your telescope eyepiece.

These filters result in perfectly neutral color will not alter the natural color of the moon.

  • ND0.6 transmits 25% of the incoming light
  • ND0.9 transmits 12.5% of the incoming light
  • ND1.2 transmits 6.25% of the incoming light
  • ND3 transmits only 0.1% of the incoming light

Four different sizes for you to choose from. Different sizes suitable for different moon phases:

  • ND0.6 filter is suitable for waxing crescent moon
  • ND0.9 filter is suitable for first quarter moon and last quarter moon
  • ND0.9 filter is suitable for Waning gibbous moon and waxing gibbous moon
  • ND3.0 filter is suitable for full moon observation


Model W9108A W9108B W9108C W9108D
Size ND0.6 ND0.9 ND01.2 ND3
Type  Neutral Density Filter
Material Aluminum Frame, Metal Thread and Optical Glass
Barrel diameter 1.25'' 1.25'' 1.25'' 1.25''
Optical density value 0.6 0.9 1.2 3.0
Transmission  25% 12.5% 6.25% 0.1%
Thread Standard M28.5*0.6 Standard M28.5*0.6 Standard M28.5*0.6 Standard M28.5*0.6
Suitable moon phase Waxing crescent moon

first quarter moon 

last quarter moon

Waning gibbous moon

Waxing gibbous moon

Full moon

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