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SV139 Telescope Filter Moon Filter 0.1 Percent Transmission
SV139 ND1000 neutral density filter allows 0.1% of the visible light to pass through.
Perfectly neutral color will not alter the natural color of the Moon.
The moment you pick up SV139 Moon Filter you’ll immediately feel the craftsmanship and quality.
Universal Science:
Gibbous Moon - From now on, until it becomes new again, the illuminated part of the Moon that we can see decreases, and we say it's waning. The first week after full, it is called waning gibbous. It's very good effect to use the ND1000 filter at this time
Eliminates overly bright and washed-out images
SV139 ND100 moon filter kit reduces glare boosting contrast and ability to discern detail on the Moon You can see more lunar detail and surface features with your telescope
High-quality aluminum frame
SV139 Moon Filter’s surface is designed with a CNC trapezoidal pattern to ensure that the friction is increased over a large area when the user rotates
High-quality optical lenses
Made by completed professional optical glasses; Multi-layer coating;ND1000 filter transmits only 0.1% of the incoming light;It has outstanding image sharpness and perfect colour neutrality
Specifications:
- Type: Neutral Density Filter
- Material: Aluminum Frame, Metal Thread and Optical Glass
- Barrel diameter: 1.25''
- Optical density value: 3.0
- Transmission: 0.1%
- Thread: Standard M28.5*0.6mm
- Net Weight: 5.0g / 0.19oz
- Note: Eyepiece are NOT included
Glass Thickness: 2mm
Standard 1.25" interface
Standard 1.25in diameter fits for 1.25 in eyepiece and telescope
Filter thread of standard 1.25 inch can be compatible with all standard 1.25 inch eyepieces on the market
Package Includes:
1×SVBONY 1.25" ND1000 Filter
1×Sturdy Plastic Case
SV139 Telescope Filter is a must-have item for observing the full moon.
When you observe the moon, the bright moon will irritate your eyes and cause eye diseases. It can alleviate this pain and damage to you by the moon.
Richard H. Wood
Reviewed in the United States on January 14, 2022
This filter is very dark, too much so for a moon filter but it is the correct rated density, ND3, for use with a Herschel Wedge, combined with a linear polarizer, for solar viewing. Both filters MUST be mounted on the eyepiece or in the eyepiece holder of the wedge AFTER the wedge prism in the Herschel wedge. Improper use for solar viewing IS DANGEROUS. Baader and others have downloadable Herschel Wedge instructions. Do a web search for Baader, Lunt or other Herschel Wedge Use Instructions. The Svbony filter is only single side male threaded with no female threading so if used in a stack it must be the outermost filter.
Peter George
Reviewed in the United States on January 9, 2021
This filter is way too dark for anything, but the ad does state it only allowed 1% of light through, and that is exactly correct. The seller was very honest and I would trust them on future purchases. Who knows, It might work for something else down the line.
Everett Pearce
Reviewed in the United States on July 1, 2020
Tonight was the first chance we got to try this looking at the moon. We could not even see the moon. I shined a flashlight through it and just could make out that there was something there. It's just way to dark to see anything.After looking at the pictures of people holding it to a television I tried my TV and Computer monitor and can't see anything.
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