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Antlia U-Venus 1.25" Filter
The Antlia U-Venus filter is a specialised tool designed to capture the beauty of the unseen. This 1.25-inch filter allows you to observe the ultraviolet (UV) details on the cloudy surfaces of Venus and Jupiter, which remain invisible to the naked eye and most standard filters.
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The U-Venus filter utilises dielectric interference coating technology, allowing for:
High transmission: Effectively capturing light in the crucial UV band at 400 nanometers (nm).
Sharp cut-off: Blocking unwanted wavelengths beyond 400 nm, which can overwhelm the desired UV details.
Unlocking the Secrets of Venus:
Venus, shrouded in a thick, opaque atmosphere, reveals no surface features in visible light. However, the U-Venus filter penetrates this veil, showcasing the intricate patterns of its UV-reflective clouds.
Jupiter's Hidden Depths:
Jupiter, a giant gas planet, has clouds with high reflectivity in the UV spectrum. The U-Venus filter acts as a key, unlocking details in these clouds that remain hidden at other wavelengths.
The applications of the U-Venus filter extend beyond astronomy. It can be used for specialized photography in various fields, provided the camera lacks a built-in UV-IR cut filter:
Each U-Venus filter undergoes rigorous individual testing to guarantee exceptional quality. The precisely crafted substrate ensures minimal deviation from specifications, making these filters parfocal, meaning you can easily switch between them without refocusing your telescope.
With its advanced technology and diverse applications, the Antlia U-Venus filter offers a unique perspective for exploring the unseen and unlocking the hidden secrets of our universe and beyond.
Specifications:
| Passing band | 300 - 390 Nm |
| Glass thickness |
2.0 mm ±0.05
|
| Optical flatness |
1/4 λ (wavefront)
|
| Surface quality | 60/40 (in accordance with US military watch MIL-O-13830) |
| Parallelism | 30" |
| Glass type | Schott monolithic optical substrate (non glued) |
Never attempt to observe the sun with the U-Venus filter, as it allows UV radiation to pass through, leading to severe eye damage.
Antlia: Experts in Astronomy Filters
Antlia Astronomy Filters are built by Deep-Sky Photography Enthusiasts for Enthusiasts of Astrophotography all around the globe. Antlia prides itself on producing a series of exceptional quality, fully multicoated narrowband, dual-band, planetary and LRGB filters for astrophotography, designed for use with a range of monochrome and colour DSLR, CMOS and CCD cameras.
Product Code: ANT-U-Venus1.25