Pentax
Pentax 70516 SMC-XW 20 1.25-Inch Telescope Eyepiece
★★★★★
Experience Superior Viewing with Pentax SMC-XW Telescope Eyepiece The Pentax 70516 SMC-XW 20mm 1.25-Inch Eyepiece delivers unparalleled viewing comfort and exceptional image quality for both telescopes and Pentax spotting scopes. Featuring a wide 70° apparent angle of view and a comfortable 20mm...
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Overview
Experience Superior Viewing with Pentax SMC-XW Telescope Eyepiece
The Pentax 70516 SMC-XW 20mm 1.25-Inch Eyepiece delivers unparalleled viewing comfort and exceptional image quality for both telescopes and Pentax spotting scopes. Featuring a wide 70° apparent angle of view and a comfortable 20mm eye relief, this eyepiece provides immersive and relaxed observation experiences.
Constructed with high-refraction, extra-low-dispersion lanthanum glass elements and Pentax's original multi-layer coating, the SMC-XW eyepiece minimizes aberrations and maximizes light transmission, ensuring bright, high-contrast images. Its weatherproof design allows for worry-free use in various outdoor conditions.
Specifications:- Brand: Pentax
- Model: 70516
- Focal Length: 20mm
- Apparent Angle of View: 70°
- Eye Relief: 20mm
- Barrel Size: 1.25-inch
- Optical Design: High-refraction, extra-low-dispersion lanthanum glass elements
- Coatings: Pentax SMC multi-layer coating
- Weatherproof: JIS Class 4
- Adapter Thread: 43mm diameter with 0.75mm pitch (when eyecup is removed)
Key Features
Improved 70 degree field of view for easier viewing
XW 7, 10, 14 , 20 will give a wider field of view than our previous eyepieces when used on Pentax Spotting Scopes or with telescopes
XW 14, 20, 30, and 40 are designed specifically provide ideal viewing conditions when used with a telescope
Fully multi-coated lenses increase light transmission and color quality
High-refraction, low-dispersion lanthanum glass elements deliver bright, high-resolution images with minimal aberrations and distortions
Specifications
Eyepiece Model
SMC-XW 20
Barrel Size
1.25-Inch
Field of View
70 degrees
Lens Coating
Fully multi-coated
Glass Elements
High-refraction, low-dispersion lanthanum glass
Compatibility
Pentax Spotting Scopes, Telescopes
Pros & Cons
👍 Pros
- Provides an improved 70-degree field of view, making celestial and terrestrial observations more comfortable and immersive
- Specifically designed to offer a wider field of view when used with Pentax Spotting Scopes or various telescopes
- Utilizes fully multi-coated lenses, which significantly increase light transmission and improve overall color quality in images
- Incorporates high-refraction, low-dispersion lanthanum glass elements, delivering bright, high-resolution images with minimal aberrations
- Engineered to provide ideal viewing conditions, especially when paired with a telescope, for a premium observational experience
👎 Cons
- The eyepiece is designed for a 1.25-inch barrel size, which may not be compatible with telescopes requiring 2-inch eyepieces without an adapter
- Specific details about the eye relief are not provided, which could be a concern for eyeglass wearers seeking comfortable viewing
- While designed for wider fields, the exact magnification when used with different scopes is not detailed, requiring external calculation
- The product is a single eyepiece, meaning users will need to purchase additional eyepieces for varying magnifications
- The "XW" series, while improved, does not provide comparative data against other premium eyepieces to fully gauge its market position
Frequently Asked Questions
What is the field of view for this eyepiece?
The Pentax SMC-XW 20 eyepiece offers an improved 70-degree field of view, enhancing your viewing experience.
Is this eyepiece compatible with Pentax Spotting Scopes?
Yes, this eyepiece is designed to provide a wider field of view when used with Pentax Spotting Scopes, as well as with telescopes.
What type of glass is used in the lenses?
It features high-refraction, low-dispersion lanthanum glass elements, which contribute to bright, high-resolution images with minimal aberrations.
Do the lenses have special coatings?
Yes, the lenses are fully multi-coated to increase light transmission and improve color quality in your observations.
What size is the barrel of this eyepiece?
The Pentax SMC-XW 20 eyepiece has a 1.25-inch barrel, suitable for telescopes and spotting scopes that accept this standard size.
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