The Levenhuk F4 ‘Solar System’ filter set comprises optical filters for telescope eyepieces. These filters are useful for studying outer space. They enhance the contrast between areas of the planets that are not uniformly illuminated, allowing you to observe even the finest details. This set will make exploring the Solar System even more exciting. All filters have a barrel diameter of 1.25” and are fitted with an internal thread for combining different filters.
Levenhuk #23A 1.25” Optical Filter (light red)
This filter is indispensable for studying the planets of the Solar System, particularly Mars, Jupiter and Saturn. It is also suitable for daytime observations of Venus and twilight observations of Mercury. The Levenhuk #23A 1.25” optical filter (light red) enhances the brightness of a comet’s dust tail. This filter has low light transmittance and is recommended for use with telescopes with apertures of 130 mm or larger.
Levenhuk #58 1.25” optical filter (green)
This filter is also best suited to apertures of 130 mm or larger. Once fitted to a refracting telescope, it will effectively eliminate chromatic aberration and improve image resolution. It is recommended for observing Mars, the polar regions of Saturn and Jupiter’s atmosphere, as well as the Moon and the brightest comets.
Levenhuk #80A 1.25” Optical Filter (blue)
This is one of the most popular filters for planetary observation. It is indispensable for examining Jupiter’s Great Red Spot and the details of Saturn’s rings. It is suitable for studying Mars’ atmosphere and polar caps. It is also useful for observing Venus and Mercury. This filter can also be used to observe binary stars, comets and the Moon.
Levenhuk #12 1.25” optical filter (yellow)
This filter features high transmittance, so it can be used on telescopes with small apertures. It is one of the most popular filters for observing Mars. It is also suitable for observing Jupiter and Saturn, as well as for studying the rings of Neptune and Uranus in detail. This filter can be used to observe comet tails and the lunar surface.
Features:
- Set of four filters
- Optical glass filters that produce a sharp and clear image
- An excellent choice for observing the planets of the Solar System, comets and the Moon
- Threaded connection for combining different filters
- 1.25” barrel diameter
The kit includes:
- Filter #23A (light red)
- Filter #58 (green)
- Filter #80A (blue)
- Filter #12 (yellow)
- Protective plastic case
| Specifications | |
|---|---|
| Optical material | Optical glass |
| External thread (for fitting into the eyepiece) | Yes, 1.25” |
| Internal thread (for combining different filters) | Yes |
| Operating temperature range, °C | −5… 35 |
| Usage | General-purpose product. Recommended for children aged 3 years and over. |
| Brand | Levenhuk Inc., USA |
| Warranty, years | 2 |
| EAN | 0611901510651 |
| Package dimensions (WxDxH), cm | 9.5 x 9.5 x 2 |
| Shipping weight, kg | 0.08 |



