The SharpStar 130mm F / 2.8 HNT is a true Formula 1 car for astrophotography, far ahead of its competitors. Ultra-fast optics with f / 2.8 light and an ultra-light carbon fiber tube concealing the most advanced technological solutions, leave no doubt that such a comparison is absolutely right.
The optical system of this astrograph is a Newtonian reflector with an aperture of 130 mm and a focal length of 364 mm. The main mirror is made of PZ33 glass, which, like Pyrex glass, has a lower coefficient of thermal expansion. In addition to the careful selection of the mirror material, the manufacturer also took care of covering it with a high-efficiency dielectric coating, thanks to which it reflects up to 97 percent of the incident light.
An important element of the optics is also the built-in field flatness corrector. Its construction is a doublet with an air gap, in which one of the lenses is made of low-dispersion (ED) glass.
In addition to impeccable optical parameters, the SharpStar 130 mm F / 2.8 HNT is characterized by high quality and precision of mechanical parts. A solid rack & pinion extractor allows the installation of even heavy astronomical cameras, and the mounting rings and Losmanda rail made in the CNC technology guarantee full stability of the tube.
• professional high-luminous hyperbolic astrograph
• main mirror covered with a high efficiency dielectric coating
• two-element corrector with a lens made of low-dispersion glass
• 55 mm back focus, compatible with most cameras and camcorders available on the market
• a solid hood that guarantees the linearity even with a heavy load
• ultra-light and durable tube made of carbon fiber
• optical construction: reflector with a hyperbolic mirror
• aperture: 130 mm
• focal length of the main mirror: 364 mm
• The length of the small axis of the secondary mirror: 65 mm
• lighted: f / 2.8
• corrector lens system: ED doublet with air gap
• main mirror material: PZ33 glass
• main mirror type: dielectric coating
• working distance of the corrector (back focus): 55 mm
• compatibility with APS-C matrices: yes, full
• compatibility with full-frame matrices: yes, after calibration, the so-called "flat"
• thread for connecting the reducer with the camera or camera: M63 / M48x0.75
• resolution: 0.89 "
• star range: 12.3 mag
• diameter of the lift: 2.5 "
• type of lift: rack & pinion, dual speed
• eyepiece output: 1.25 "
• finder mount: Vixen socket
• mounting for mounting: Losmandy rail
• tube material: carbon fiber
• tube length: 394 mm
• Outer tube diameter: 174 mm
• tube weight: 3.2 kg
• weight of the tube with attached accessories: 4.3 kg
• SharpStar 130 mm F / 2.8 HNT astrograph
• M63 / M48x0.75 adapter
• mounting rings with a finder socket and a Vixen foot
• security plugs
• documentation
• alu case
24 months
