Sharpstar Apo 50EDPH

Codice articolo: 50EDPH

The 50EDPH not only can provide higher-quality astrophotography, but also can be applied to visual observation.

Air-spaced triplet apo
50 mm aperture
275 mm focal length
Focal ratio f/5.5
Dual-speed focuser with M48 male thread, 1.25" adapter and 360° rotation
Lightweight (1 kg) and compact (196 mm long, 72 mm maximum diameter) - suitable for air travel
Comes with many mounting options

The Sharpstar 50EDPH is a high-quality, versatile portable small aperture astrograph.

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

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

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

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

Mechanical features:
The Sharpstar 50EDPH has a retractable lens hood to further shorten the overall length and increase portability.

Before the focuser, Sharpstar 50EDPH design a 360° rotator, which is also equipped with a rotator locking screw.

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

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

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

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

Specifiche tecniche:

Objective lens: Air-spaced triplet apo（including two ED glasses）
Aperture: 50 mm
Focal length: 275 mm (230 mm with optional reducer)
Focal ratio: f/5.5 (f/4.6 with optional reducer)
Limiting visual magnitude: 10.3
Focuser: Dual-speed rack-and-pinion precision focuser, 360 rotatable
Adjustment range of the focuser: 60 mm
Back side connections: M48x1 male thread, 1.25" via adapter
Back focus with optional reducer: 55 mm
Finder shoe: For Vixen type finder brackets
Dew shield: Retractable
Mounting options: Vixen style dovetail bar (70 mm) with two 1/4-20 photo threads and six M6 threads
Tube material: Aluminum
Tube length with cap: 196 mm（dew shield retracted）
Maximum diameter: 72 mm with cap
OTA weight (with rings and dovetail): 1.0 kg