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BST StarGuider 60º 15mm ED Eyepiece

£47.00

(1 Review)

✓ 2 year warranty

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About this product

Model: bst_sg_15
Part Number: SP10854

BST StarGuider ED eyepieces offer remarkably high performance-per-£!

Features include two ED glass elements and fully multicoated edge-blackened optics for excellent colour, enhanced contrast, high light transmission and minimal ghosting.

The six-element / four-group design minimises field curvature for a nice flat field, even when used with telescope f-ratios as low as f5.

Modern twist-up eyecups, 16mm eye relief and 21mm diameter eye-lens makes them comfortable to use, even when wearing eyeglasses.

The tactile rubber grip and milled indentations make them easy to handle in the dark and the 1.25“ nosepiece includes a safety undercut so the eyepiece is less likely to slip out of the focuser. The 1.25” nosepiece is also threaded to accept 1.25“ astronomy filters.

FEATURES

Two ED glass elements minimise chromatic aberration.
All air-to-glass surfaces are fully multicoated for high contrast, high light transmission and minimal ghosting.
Blackened lens edges reduce internal reflections and further increase contrast.
Six-element / four-group design minimises field curvature for a nice flat field.
16mm eye relief (suitable for spectacle wearers).
Large 21mm eye-lens diameter for comfortable observing.
Convenient screw-out eye cups.
Tactile rubber grip for easy handling in the dark.
1.25“ nosepiece with milled safety undercut.
Accepts 1.25“ astronomy filters.
Suitable for use with telescope focal-ratios f/5 and above.

Eyepiece Field of View Simulator

Customer reviews

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Worth its cost.

Thursday, 4 April 2019 | Paul

This is my first branded eyepiece so unfortunately I don't really have that much to compare it too. The build quality is obviously much better than the 2 eyepieces that came with my skywatcher 200p, the twist up eyecup is also really nice and feels like it'll last a lot longer than the flip up equivalents on the standard eyepieces. Image quality seems fine, feels about on par with my standard 25mm eyepiece, maybe slightly better, slightly larger FOV is also nice. Eye relief doesnt feel all that great compared to my 25mm, can be trickier to observe with. Observing bright objects can create a glare/reflection at certain angles which can be annoying.
Overall though i would say these eyepieces seem like they are worth thier price, although i probably wouldn't replace my standard eyepieces with BST equivalents, they are good cheap alternatives when it comes to buying eyepieces to fill the gaps in your collection.

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