TeleVue Delos 4.5mm 72° 1.25″ Eyepiece
The TeleVue Delos 4.5mm eyepiece represents a premium solution for demanding astronomers seeking a combination of ultra-wide field of view with exceptional optical quality. This professional astronomical eyepiece utilizes advanced hybrid optics inspired by the renowned Ethos series, providing observers with an entirely new dimension of astronomical observation. Through carefully designed construction and the use of premium materials, this eyepiece achieves outstanding performance for both planetary and deep sky observation.
Key Features and Specifications
The key characteristic of this eyepiece is its ultra-wide apparent field of view of 72°, which in combination with the 4.5mm focal length creates an impressive observing experience. The hybrid optics based on Ethos series principles ensure sharp imaging right to the edge of the field, while full multi-coating on all lenses minimizes reflections and maximizes contrast. The generous 20mm eye relief allows comfortable viewing even for eyeglass wearers, with the retractable eyecup providing flexibility in adjustment.
- Focal length: 4.5mm
- Apparent field of view: 72°
- Barrel diameter: 1.25″
- Eye relief: 20mm
- Weight: 500g
- Parafocal group B
- Full multi-coating on all elements
- Retractable eyecup
Optimal Applications
The TeleVue Delos 4.5mm is an ideal choice for planetary observation, where its short focal length provides high magnification and excellent surface detail of planets. Simultaneously, thanks to its 72° wide field of view, it excels in deep sky observation, allowing capture of larger portions of the sky and providing impressive views of star clusters, nebulae, and galaxies. The robust construction with 500g weight ensures stability and long service life, while parafocal group B allows easy switching with other eyepieces without the need for refocusing.
Hybrid Optics Technology
The Delos series employs sophisticated hybrid optics technology that combines the best aspects of different optical designs. This approach delivers exceptional contrast, minimal distortion, and outstanding edge-to-edge sharpness. The optical design minimizes common eyepiece aberrations such as field curvature and astigmatism, ensuring crisp views across the entire field of view.
Build Quality and Durability
Constructed with precision-machined aluminum housing and premium optical glass, the Delos 4.5mm is built to withstand years of regular use. The eyepiece features blackened lens edges and internal baffling to eliminate stray light and enhance contrast. The smooth-operating eyecup mechanism and comfortable grip make extended observing sessions enjoyable.
About TeleVue Brand
TeleVue is a legendary brand in astronomical optics, founded by astronomers for astronomers with a clear goal - to provide the highest quality optical systems on the market. The company specializes in manufacturing premium eyepieces and other astronomical instruments, with each product undergoing strict quality control and testing under real-world conditions. The TeleVue brand is synonymous with innovation, precision, and reliability, confirmed by thousands of satisfied astronomers worldwide. The Delos series represents advanced hybrid optics technology that combines the advantages of refractor and reflector designs to achieve extraordinary optical parameters. With decades of experience and continuous innovation, TeleVue continues to set the standard for premium astronomical eyepieces.
