Pentax
Pentax XW 5mm 1.25" Telescope Eyepiece 70 Degree
★★★★★
Observe the Cosmos with Unmatched Clarity The Pentax XW 5mm 1.25" 70° XW Eyepiece is designed to provide exceptional views when used with telescopes and spotting scopes. Enjoy a wide field of view, long eye relief, and weatherproof construction for all-weather viewing. Specifications Brand: Pen...
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Overview
Observe the Cosmos with Unmatched Clarity
The Pentax XW 5mm 1.25" 70° XW Eyepiece is designed to provide exceptional views when used with telescopes and spotting scopes. Enjoy a wide field of view, long eye relief, and weatherproof construction for all-weather viewing.
Specifications
- Brand: Pentax
- Model: XW 5
- Focal Length: 5mm
- Apparent Angle of View: 70°
- Eye Relief: 20mm
- Eyepiece Sleeve: 1.25" (31.7mm)
- Coating: Fully Multi-Coated
Key Features
Improved 70 Degree field of view for easier viewing
Xw 3. 5mm, 5mm, 7mm, 10mm, 14mm, 20mm will give a wider field of view than typical eyepieces when used on Pentax spotting scopes or with most any telescope
Xw 3. 5mm, 5mm, 7mm, 10mm, 14mm, 20mm, 30mm, and 40mm are designed specifically to provide exceptional views when used with most any 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 distortion
Specifications
Focal Length
5mm
Barrel Size
1.25"
Apparent Field of View
70 Degree
Lens Coating
Fully multi-coated
Glass Elements
High-refraction, low-dispersion lanthanum glass
Compatibility
Pentax spotting scopes, most any telescope
Pros & Cons
👍 Pros
- Offers an improved 70-degree field of view, providing a more expansive and comfortable viewing experience.
- Utilizes fully multi-coated lenses, which significantly increase light transmission and enhance color quality.
- Features high-refraction, low-dispersion lanthanum glass elements for bright, high-resolution images.
- Designed to deliver minimal aberrations and distortion, ensuring clear and sharp visual fidelity.
- Provides a wider field of view than typical eyepieces when paired with Pentax spotting scopes or most telescopes.
👎 Cons
- The 5mm focal length offers high magnification but a narrower true field of view compared to lower focal length eyepieces.
- Requires a 1.25" telescope focuser, which may not be compatible with all telescope setups, particularly larger ones.
- Its high magnification might be more susceptible to atmospheric conditions, which can affect image clarity.
- The 5mm focal length may produce a dimmer image than longer focal length eyepieces due to higher magnification.
- Specific compatibility with only "most any telescope" suggests potential for some incompatibility with niche models.
Frequently Asked Questions
What is the field of view for this eyepiece?
The Pentax XW 5mm eyepiece features an improved 70-degree field of view, offering an expansive visual experience.
What type of glass is used in the lenses?
This eyepiece incorporates high-refraction, low-dispersion lanthanum glass elements, contributing to bright, high-resolution images with minimal aberrations.
Will this eyepiece fit any telescope?
This eyepiece is designed to be compatible with a 1.25" focuser and will provide exceptional views when used with most any telescope, including Pentax spotting scopes.
Does this eyepiece enhance light transmission and color?
Yes, it features fully multi-coated lenses, which are designed to increase light transmission and improve overall color quality of observed objects.
What is the focal length of this Pentax XW eyepiece?
This particular Pentax XW eyepiece has a focal length of 5mm, providing a high magnification for detailed observations.
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