The Sky-Watcher Evostar 100EDX APO Doublet Refractor delivers a perfect combination of precision optics, portability, and value, making it an outstanding choice for serious amateur astronomers and astrophotographers. With its 100mm aperture and FPL-53 extra-low dispersion glass, this refractor produces tack-sharp stars, exceptional contrast, and virtually zero chromatic aberration.

Designed to outperform expectations in its class, the Evostar 100EDX provides rich, high-contrast views of planets, the Moon, and deep-sky objects, while remaining lightweight enough for portable imaging setups.

The two-element, air-spaced design with FPL-53 glass delivers excellent color correction and sharpness, producing clean, natural star images with minimal false color.

Proprietary coatings enhance light throughput, resulting in bright images and deep, charcoal-black backgrounds for improved contrast.

• Ideal focal length for wide-field and medium-power astrophotography
• Internal baffling reduces stray light
• Produces crisp planetary and deep-sky views

Achieve precise focus with a smooth, dual-speed Crayford-style focuser, perfect for dialing in critical focus during imaging sessions.

Compared to triplet refractors, the doublet design reduces weight—making it easier to mount, transport, and balance your setup.

• Durable aluminum optical tube
• Elegant white metal-flake finish
• Thread-on dew shield for moisture control

The Evostar 100EDX doublet design offers several advantages:

• Reduced weight for easier portability and mounting
• Lower cost than triplet refractors
• More budget flexibility for mounts, cameras, and accessories
• Excellent optical performance for both imaging and visual observing

Best For: 

• Astrophotography (wide-field and mid-range imaging)
• Planetary and lunar observation
• Intermediate to advanced astronomers
• Portable and backyard observatories

• Aperture: 100mm
• Focal Length: 700mm
• Focal Ratio: f/7
• Optical Design: Apochromatic ED Doublet
• Glass Type: FPL-53
• Focuser: 2.8" Dual-Speed Crayford
• Tube Material: Aluminum
• Finish: White metal-flake

• Foam-lined aluminum carrying case
• Tube rings
• 2.8" Crayford-style focuser
• Camera angle adjuster
• Thread-on dew shield
• Focuser adapter ring
• Spacer
• 1.25" to 2" adapter
• V-style dovetail plate

The Evostar 100EDX is a step up in aperture and performance from smaller refractors, offering more light-gathering power while maintaining portability. It’s an excellent choice for astronomers who want professional-level image quality without the added weight and cost of a triplet refractor.