Explore Scientific 127mm White Essential Series APO Telescope (Pre-Owned)

This product is in excellent condition. The glass has no blemishes or scratches. 

1. Optics

• Aperture: 127mm (5 inches) for excellent light-gathering power. This aperture size allows for highly detailed views of planets, deep-sky objects, and lunar features.
• Focal Length: 952mm, offering a versatile focal length that is suitable for a wide range of astronomical targets.
• Focal Ratio: f/7.5, striking a balance between wide-field views and high magnification, making it perfect for both planetary and deep-sky observations.
• Triplet Apochromatic (APO) Design: The telescope features air-spaced triplet lenses that reduce chromatic aberration (color fringing), resulting in sharp, high-contrast images with excellent color correction.
• ED Glass Elements: The optics use extra-low dispersion (ED) glass to further minimize chromatic aberrations, providing crisp images with high levels of clarity.

2. Build Quality

• Optical Tube: Made from lightweight, durable aluminum with a sleek white finish, this telescope is sturdy and built to last, offering high resistance to wear and tear in various observing conditions.
• Dew Shield: Equipped with an integrated retractable dew shield that protects the optics from dew and stray light, enhancing performance during observations.
• Portability: The compact and lightweight design makes the telescope relatively easy to transport, ideal for astronomers who travel to dark-sky locations.

3. Focuser

• 2.5-inch Dual-Speed Crayford Focuser: The telescope includes a precision dual-speed Crayford-style focuser, allowing for smooth and accurate focusing. The 10:1 fine focus ratio ensures precise adjustments, especially for astrophotography, where critical focus is essential.
• The large aperture of the focuser also makes it easier to use with a variety of accessories, such as large eyepieces or camera equipment.

4. Mounting Compatibility

• Vixen-Style Dovetail: The telescope comes with a Vixen-style dovetail bar, making it compatible with a wide range of mounts, both alt-azimuth and equatorial.
• Tube Rings: Included tube rings ensure the telescope can be securely mounted and balanced on various types of mounts.

5. Visual and Imaging Capabilities

• Visual Observation: The 127mm aperture and apochromatic optics provide stunning views of planets like Jupiter, Saturn, and Mars, as well as deep-sky objects like star clusters, nebulae, and galaxies.
• Astrophotography: The triplet APO design is ideal for imaging. It produces sharp, color-accurate images with minimal aberrations, allowing for high-quality astrophotography of deep-sky objects and planets. When paired with a suitable camera and mount, this telescope can capture detailed images of the night sky.

6. Included Accessories

• The Explore Scientific 127mm APO Refractor typically includes:
  • Tube rings with a handle for easy mounting and carrying.
  • Vixen-style dovetail bar for mounting on a wide variety of telescope mounts.
  • Dust caps to protect the optics when not in use.
  • Depending on the seller, additional accessories such as a finder scope or diagonal mirror may also be included.

Specifications:

• Aperture: 127mm (5 inches)
• Focal Length: 952mm
• Focal Ratio: f/7.5
• Optical Design: Triplet Apochromatic Refractor
• Glass Type: ED (Extra-low Dispersion)
• Focuser: 2.5-inch dual-speed Crayford-style focuser
• Mounting System: Vixen-style dovetail
• Weight: Approximately 15 pounds (6.8 kg)