Centered on the 495nm wavelength, the Baader Yellow Bandpass Eyepiece Filter 1.25"can be used by itself or stacked with other filters to enhance your observations when viewing or imaging Jupiter or Mars. The optical glass filter is planeoptically polished and treated with seven-layer Phantom Group anti-reflection multi-coatings to improve contrast and clarity while eliminating reflections, scattering, or image dimming. Holding the filter is an black anodized aluminum frame made to fit standard 1.25" eyepieces and other accessories such as diagonals and Barlows.

Planetary Viewing/Imaging Filter    495nm Wavelength Bandpass    1.25" Eyepiece Threads    7-Layer Anti-Reflection Multi-Coated    No Reflections, Scatter or Image Dimming    Planeoptically Polished Optical Glass    98% Throughput Transmission    Blackened Aluminum Frame    Stackable with Other Filters

• Suppresses the secondary blue spectrum when using achromatic and half-apochromatic refractors, increasing image sharpness
• For visual and photographic planetary observations
• Enhances contrast between the belts on Jupiter
• Increases contrast of the lunar and Martian surface
• 98% average transmission bandpass throughput

Related Questions and Answers

Q: 1. Will these filters work with the Meade 114EQ-AST 4.5 /114mm Reflector Telescope Kit B&H # ME114EQST / MFR # 04066-1 ? How do they compare to the Meade #3200 Lunar and Planetary Color 4-Piece Filter Set ?

A: Yes this filter set will be compatible with your Meade 114EQ-AST 4.5 /114mm Reflector Telescope Kit. Both kits are actually somewhat comparable. Some reviewers have said the Meade is better quality wise. Personally I think they are the same.

Q: 2. Do these filters come with a case?

A: Each filter comes in a plastic case

Q: 3. How do you fit this eyepiece to the diagonal that comes standard with Celestron Nexstar 8SE?

A: It fits the Celestron 8se directly as long as you are not using the 2" Schmidt-Cassegrain Adapter.

Q: 4. Is this the filters that makes planets not looks like a white dots and see details?

A: The Alpine Astronomical Baader 0.9 Neutral Density Filter is not for planetary use. It is used to help reduce the brightness of the moon so you can see the details of the moon better and improves contrast.

Q: 5. Would this lens Will this EP work effectively in a f/10 C5 scope?

A: Yes this Eyepiece would work with that Scope.

Q: 6. will this product be compatible with the NexStar 8se?

A: Have a look at your eyepieces: there should be an internal thread on the end that goes into the telescope focusser. If so the Celestron eyepiece filters will fit, in fact they will screw into most brands of 1.25 eyepieces. However, they will not fit any 2 or the older 0.965 eyepieces. Kind Regards, Ian

Q: 7. Is this eyepiece waterproof?

A: The Alpine Astronomical Baader Hyperion 8-24mm Mark IV Zoom Eyepiece (1.25"/2") BH #ALHYPZOOM • MFR #HYP-ZOOM is not waterproof.

Q: 8. Is this filters that make planets less bright?

A: The Alpine Astronomical Baader 3.0 Neutral Density Filter is used to reduce the amount of light coming into your eye during lunar observation and improve the view and contrast. It is not made for planetary use.

Q: 9. It says you can remove the smaller nosepiece to use the 2" barrel. But it changes the focal length. To what?

A: This is the only information being offered by Alpine Astronomical https://alpineastro.com/products/baader-13mm-hyperion-68-modular-eyepiece#description

Q: 10. Is it parfocal with other Alpine Hyperion eye pieces?

A: This is the only additional information B&H has on the Alpine Astronomical Baader 72° Hyperion 36mm Aspheric Eyepiece (1.25"/2") https://alpineastro.com/products/baader-36mm-hyperion-aspheric-2-eyepiece And yes to the compatibility with other eyepieces