APO triplet refractor tube SHARPSTAR 50EDPH

APO ASKAR 50EDPH Triplet Refractor Tube APO ASKAR 50EDPH

The Sharpstar 50EDPH is an OTA with a 50 mm aperture, a focal length of 275 mm and a native focal ratio of f/5.5.

The 50EDPH is compact and lightweight, with a gross weight of 1.0 kg (including dovetail plate) and an overall length of 196 mm.

With excellent optical quality, user-friendly mechanical design and a size that can be gripped with one hand, the 50EDPH is a perfect choice for everyday observation and shooting.

The 50EDPH is an air-spaced triplet APO design, which includes two pieces of ED glass. The triplet design is unusual for a telescope of such a small aperture, and the chromatic aberration control is exceptional.

The Sharpstar 50EDPH has a retractable eyecup to further shorten the overall length and increase portability.

The Sharpstar 50EDPH has a 70mm dovetail style dovetail plate Vixen, which slots 1/4-20 threaded holes, so it not only fits most equatorial mounts, but can also be mounted on a tripod for use.

Upstream of the focuser, the Sharpstar 50EDPH designs a 360° rotator, which is also equipped with a rotator locking screw.

The focuser of the Sharpstar 50EDPH is a rigid dual-speed rack-and-pinion focuser, with a 1:10 precision fine adjustment knob and a total travel length of 60 mm.

The rear end of the Sharpstar 50EDPH is equipped with a 1.25" adapter, which allows attachment of a 1.25" diagonal and eyepiece for visual observation.

It is worth mentioning that the Sharpstar 50EDPH also comes standard with two sections of 5 cm M48 extension tubes. The extension tubes can be connected to the eyepiece for visual observing instead of the diagonal, or to a planetary camera for planetary imaging.

The Sharpstar 50EDPH has an optional 0.84x reducer to choose from, the 0.84x reducer can lower the focal ratio of the Sharpstar 50EDPH down to f/4.6. This is a standard reducer with field flattening capabilities as well. The 0.8x reducer is equipped with an M48 adapter and incorporates a 2" M48*0.75 filter thread for direct filter mounting.

Can be supplied with an OPTIONAL 0.84x focal reducer. Sold separately:

Small size and great function, easy to put the scan in your pocket. Hope you can enjoy the mysteries of the universe with the Sharpstrar 50EDPH anytime, anywhere

TECHNICAL SPECIFICATIONS:

• Aperture: 50mm
• Focal Length: 275 mm
• Focal ratio: F5.5
• Lens objective: Triplet APO air-spaced (includes two ED lenses)
• Visual magnitude limit: 10.3
• Tube length: 196mm（Shield against contracted dew）
• Gross weight（including dovetail plate）: 1.0kg
• Rear thread type: 1.25" visual adapters
• Standard package items: one OTA 50EDPH, one 2 section 5cm M48 extension tube ,one 70mm style dovetail plate Vixen

DIMENSIONS:

EAF（optional） Installation

DIAGRAM SPOT

APO ASKAR 50EDPH Triplet Refractor Tube APO ASKAR 50EDPH