Pentax SMC XW-3.5 Eyepiece

Pentax SMC XW-3.5 Eyepiece - Technical Details

The Pentax SMC XW-3.5 Eyepiece is a high-performance eyepiece designed for precision viewing of both ground-based and astronomical objects. Its advanced optics combined with weatherproofing make it a versatile and durable choice for outdoor enthusiasts, astronomers, and birdwatchers alike. The 3.5mm focal length delivers high magnification, allowing for detailed views of distant objects. It features lanthanum glass and a wide 70° apparent field of view, ensuring clarity and brightness even at high magnification levels.

Key Features:

• Advanced Optical Design:

  • Lanthanum glass provides low-dispersion properties that reduce chromatic aberrations, resulting in clearer, sharper images.
  • The eyepiece features eight elements in five groups, designed to optimize light transmission and reduce distortions.

• 3.5mm Focal Length:

  • Offers high magnification, making it ideal for detailed observations of celestial objects like planets, the Moon, or for extreme close-ups of distant terrestrial subjects.

• 70° Apparent Field of View:

  • A wide 70° field of view enables a comfortable, immersive viewing experience, especially when using the eyepiece for stargazing or long-distance terrestrial observation.

• 20mm Eye Relief:

  • The 20mm eye relief is especially beneficial for users who wear glasses, allowing for a wide, clear view without eye strain, even at high magnifications.

• Weatherproof & Fog Proof:

  • Built with weatherproofing and fog-proofing capabilities, this eyepiece is designed for use in a variety of outdoor conditions, from humid environments to cold, rainy days.

Product Specifications:

• Focal Length: 3.5mm
• Apparent Field of View: 70°
• Eye Relief: 20mm
• Optical Design: Eight elements in five groups with lanthanum glass for low dispersion and enhanced clarity.
• Attachment Diameter: 31.7mm
• Filter Diameter: 28.6mm
• Weight: 405g
• Dimensions: 61mm (W) x 137mm (H)
• Compatibility: Compatible with Pentax PF-65, PF-65 ED II, PF-80, and PF-100 series spotting scopes.

Reasons You’ll Love the Pentax SMC XW-3.5 Eyepiece:

1. Generous Eye Relief:

   • With 20mm of eye relief, this eyepiece provides a comfortable viewing experience, especially for users with glasses, and reduces eye strain during extended sessions.

2. Superior Optical Performance:

   • The lanthanum glass and eight-element optical design ensure high-definition views with minimal distortion and excellent light transmission, making it perfect for both detailed astronomical and terrestrial observations.

3. Weather-Durable Construction:

   • Waterproof and fog-proof design means this eyepiece can withstand harsh conditions, whether you're using it in cold, humid, or rainy weather, without worrying about performance degradation.

What’s Included:

• Pentax SMC XW-3.5 Eyepiece
• Eyepiece Lens Cap (for protection)

Ideal For:

• Astronomy: Ideal for planetary observation and high-magnification stargazing, especially when paired with PF-65, PF-80, or PF-100 series spotting scopes.
• Birdwatching: Perfect for observing distant wildlife and fine details from afar, with the ability to magnify and clarify even small subjects.
• Nature Observation: Great for anyone who enjoys long-distance terrestrial spotting in varying weather conditions, whether you're hiking, camping, or exploring.

Why Choose the Pentax SMC XW-3.5 Eyepiece?

The Pentax SMC XW-3.5 is a premium eyepiece that combines high magnification, wide field of view, and advanced optical engineering for a superior viewing experience. Whether you're an astronomer or a nature enthusiast, its weatherproof construction, high-quality lenses, and comfortable eye relief make it a reliable tool for clear, bright, and detailed observations.