Eyes for the sky!
The Zhumell Telescope 1.25 Inch Eyepiece and Filter Kit is a great way to make the most of your telescope! Zhumell kits include a selection of eyepieces and filters that optimize available light. This, in turn, allows planetary features, galaxies, and binary systems to stand out in fine detail. All kits include fully-coated 1.25 Super Plossl eyepieces to ensure image clarity.
The Zhumell Telescope 1.25 Inch Eyepiece and Filter Kit is the perfect accessory for any scope!
The Zhumell Telescope 1.25 Inch Eyepiece and Filter Kit includes:
- 4mm high-grade eyepiece - 5mm Eye Relief, 50 Degree Apparent Field of View
- 6mm high-grade eyepiece - 6mm Eye Relief, 50 Degree Apparent Field of View
- 12.5mm high-grade eyepiece - 15mm Eye Relief, 50 Degree Apparent Field of View
- 32mm high-grade eyepiece - 20mm Eye Relief, 52 Degree Apparent Field of View
- 2x Achromatic Barlow Lens
- #12 Yellow filter
- #21 Orange filter
- #23A Light Red filter
- #56 Green filter
- #82A Light Blue filter
- Polarizing filters
- CrystalView Moon filter
- Aluminum-sided eye-piece and filter case
Using Telescope Filters:
The Zhumell Astronomical Filters attach to the telescope side of the eyepiece barrels. These filters will attach to any astronomical eyepiece with standard threading at the end of the barrel. To use a filter, remove the eyepiece on which you would like to use the filter. Looking at the end of the eyepiece which is inserted into the telescopes eyepiece receptacle, screw the desired filter clockwise into the eyepiece barrel. To remove the filter, turn the filter counterclockwise. Once the desired filter is attached to the eyepiece, insert the eyepiece into the telescopes eyepiece receptacle.
Some notes on Astronomial Filters
Astronomical filters work by blocking out certain colors in the visible spectrum of light. A red filter, for example, will block out all but the red wavelength of light. If you look at an object which is primarily red while using a red filter, the object will appear very bright. Areas which are not red will appear more clearly because they contrast with the wavelength of light which is being passed by the filter.
When using filters, make note of the visible light transmission (VLT) of the filter you would like to use. The VLT is a number which describes the overall amount of light which is allowed to pass through the filter. The lower the VLT number, the dimmer an image will appear. Filters with a VLT less than 40% are not recommended for use on telescopes with an aperture of less than 6'' due to the decreased image brightness.
Filters are sorted by the Kodak Wratten numbering system. Each filter is listed by its color and Wratten number. The Wratten numbers help to ensure similar results between different filters. The image should appear the same when viewed through any #82A Light Blue Filter for example.