Sharpstar Apochromatic refractor AP 61/270 EDPH III OTA (63320)

The Sharpstar 61/270 EDPH III is a compact apochromatic refractor designed primarily for astrophotographers and advanced nature photographers. Featuring a high-quality 2-element FPL53 lens from Ohara (Japan) and a dedicated 3-element corrector, this telescope delivers a flat, chromatic-aberration-free image field with a 44 mm diameter, making it perfect for full-frame cameras. Its fast f/4.5 aperture ratio enables short exposure times, while the robust construction and portable design make it an excellent choice for travel and field use. The telescope is also versatile, allowing for both astrophotography and, with the right accessories, visual observation.

This telescope is ideal for advanced astrophotographers who need a portable, high-performance instrument for capturing wide-field images with full-frame cameras, while also offering flexibility for visual observation with the proper adapters.

Key Features

• High-quality 2-element FPL53 lens for excellent color correction and sharpness

• 3-element corrector designed for a 44 mm image circle, ideal for full-frame cameras

• Fast f/4.5 aperture for short exposure times and bright images

• M48x0.75 camera thread with a precise 55 mm working distance for easy camera attachment

• Convenient integration of 2" nebula filters without changing the working distance

• CNC tube ring with a Vixen/GP/EQ5-style dovetail for easy mounting on a wide range of mounts and tripods

• Multifunctional carrying handle with a 1/4" photo thread and finder shoe for additional accessories or parallel camera mounting

• Suitable for visual observation with optional adapters (not included)

• Lightweight and portable, ideal for travel astrophotography

Specifications

Optics

• Type: Refractor, apochromat

• Aperture: 61 mm

• Focal length: 270 mm

• Aperture ratio: f/4.5

• Resolving capacity: 2.26 arcseconds

• Limiting magnitude: 10.7

• Light gathering capacity: 80x the naked eye

• Maximum useful magnification: 122x

• Lens design: Triplet

Tube

• Weight: 2.4 kg

• Diameter: 75 mm

• Length: 272 mm (carrying length)

• Material: Aluminium

• Dew cap diameter: 83 mm

Focuser

• Type: Gear rack

• Camera-side thread: M48

• Backfocus: 55 mm

• Free aperture: 48 mm

• Motorized: No

• Gear reduction: Yes

• Rotating: Yes

Mount and Accessories

• Mount type: OTA (no mount included)

• Prism rail: Vixen-style

• Tube clamps: Yes

• Dew shield: Yes

• Carrying handle: Yes

• Finder base: Vixen/Skywatcher level

• Corrector: 0.75x reducer

• Finder scope: Not included

• Deviating optics: Not included

Applications

• Astrophotography: Excellent

• Moon and planets: Yes

• Nebulae and galaxies: Yes

• Nature observation: Only with appropriate accessories

• Sun: Only with appropriate solar filter (not included)

• Recommended for advanced users