Long Perng 1.25" Pentaprism 90-deg Diagonal
Sku:
ODIA-LP-K1.25N-T
Mfg #:
K1.25N-T
Item Can Ship:
Worldwide
$149.00
In Stock
(7 Available)
Stock count is accurate & shown in real time.
- This item is out of stock.
- Sign up for back-in-stock alerts to be notified when this item becomes available (account login required).
- This item is out of stock.
- Sign up for back-in-stock alerts to be notified when this item becomes available (account login required).
Contiguous US / Lower 48:
Free shipping applies to orders over $50 using our chosen carrier/method. Faster paid options are available at checkout.
Alaska, Hawaii & US Territories:
Free shipping applies to many—but not all—products. Enter your ZIP code in cart or upon checkout to confirm options and costs.
International:
International orders do not qualify for free shipping. Shipping, duties, brokerage, tariffs, and taxes are the customer’s responsibility. Some items may be restricted due to export, size, or manufacturer limitations.
SKU:
ODIA-LP-K1.25N-T
Mfg #:
K1.25N-T
Item Can Ship:
Worldwide
Description
Description
Long Perng 1.25" 90-deg pentaprism diagonal for use with Long Perng 1.25" Erect Image Divergent Binoviewer # K1.25N-T.
Features:
- Ideal for use with Long Perng 1.25" Erect Image Divergent Binoviewer* to provide a "correct" image (upright and correct from left to right, i.e., a correct, non-inverted, non-reversed image); especially useful for terrestrial viewing.
- Uses a high quality, dielectric multicoated, BK-7 glass pentaprism to change the viewing angle by 90-deg.
- 1.25" eyepiece holder features a non-marring brass-compression ring.
- 1.25" nosepiece is threaded to accept standard 1.25" astronomy filters and features a safety groove.
Additional Information:
- When used by itself with a refractor or catadioptric telescope and eyepiece, this diagonal provides an image that is inverted (upside down) from top to bottom but correct (not reveresed) from left to right.
- Not for use with Newtonian/Dobsonian reflectors.
- If used with other binoviewers, it will present an image that is oriented differently (i.e., not a correct image) than when used with the Long Perng divergent binoviewer. That is becuase the Long Perng binoviewer incorporates an image-erecting lens assemly that other binoviewers do not have.
- 1.25" eyepiece holder and nosepiece cannot be unscrewed from the diagonal body.
Specifications
- Barrel Size: 1.25"
- Viewing Angle: 90°
- Optical path length: 120mm
- Clear aperture: Xmm
- Materials: BK7
- Coating: Multi-Coated
- Housing material & finish: Aluminum & Anodizing
- Weight: 8.6oz (244g)
- Includes 1 end cap and 1 dust plug
Other Information
- Country of Manufacture: Taiwan
Long Perng 1.25" 90-deg pentaprism diagonal for use with Long Perng 1.25" Erect Image Divergent Binoviewer # K1.25N-T.
Features:
- Ideal for use with Long Perng 1.25" Erect Image Divergent Binoviewer* to provide a "correct" image (upright and correct from left to right, i.e., a correct, non-inverted, non-reversed image); especially useful for terrestrial viewing.
- Uses a high quality, dielectric multicoated, BK-7 glass pentaprism to change the viewing angle by 90-deg.
- 1.25" eyepiece holder features a non-marring brass-compression ring.
- 1.25" nosepiece is threaded to accept standard 1.25" astronomy filters and features a safety groove.
Additional Information:
- When used by itself with a refractor or catadioptric telescope and eyepiece, this diagonal provides an image that is inverted (upside down) from top to bottom but correct (not reveresed) from left to right.
- Not for use with Newtonian/Dobsonian reflectors.
- If used with other binoviewers, it will present an image that is oriented differently (i.e., not a correct image) than when used with the Long Perng divergent binoviewer. That is becuase the Long Perng binoviewer incorporates an image-erecting lens assemly that other binoviewers do not have.
- 1.25" eyepiece holder and nosepiece cannot be unscrewed from the diagonal body.
Specifications
- Barrel Size: 1.25"
- Viewing Angle: 90°
- Optical path length: 120mm
- Clear aperture: Xmm
- Materials: BK7
- Coating: Multi-Coated
- Housing material & finish: Aluminum & Anodizing
- Weight: 8.6oz (244g)
- Includes 1 end cap and 1 dust plug
Read Full Description
Reviews / Q&A
Reviews / Q&A
Description
Reviews / Q&A
Description
Long Perng 1.25" 90-deg pentaprism diagonal for use with Long Perng 1.25" Erect Image Divergent Binoviewer # K1.25N-T.
Features:
- Ideal for use with Long Perng 1.25" Erect Image Divergent Binoviewer* to provide a "correct" image (upright and correct from left to right, i.e., a correct, non-inverted, non-reversed image); especially useful for terrestrial viewing.
- Uses a high quality, dielectric multicoated, BK-7 glass pentaprism to change the viewing angle by 90-deg.
- 1.25" eyepiece holder features a non-marring brass-compression ring.
- 1.25" nosepiece is threaded to accept standard 1.25" astronomy filters and features a safety groove.
Additional Information:
- When used by itself with a refractor or catadioptric telescope and eyepiece, this diagonal provides an image that is inverted (upside down) from top to bottom but correct (not reveresed) from left to right.
- Not for use with Newtonian/Dobsonian reflectors.
- If used with other binoviewers, it will present an image that is oriented differently (i.e., not a correct image) than when used with the Long Perng divergent binoviewer. That is becuase the Long Perng binoviewer incorporates an image-erecting lens assemly that other binoviewers do not have.
- 1.25" eyepiece holder and nosepiece cannot be unscrewed from the diagonal body.
Specifications
- Barrel Size: 1.25"
- Viewing Angle: 90°
- Optical path length: 120mm
- Clear aperture: Xmm
- Materials: BK7
- Coating: Multi-Coated
- Housing material & finish: Aluminum & Anodizing
- Weight: 8.6oz (244g)
- Includes 1 end cap and 1 dust plug
Other Information
- Country of Manufacture: Taiwan
Reviews / Q&A
Long Perng 1.25" Pentaprism 90-deg Diagonal
$149.00