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Celestron Luminos Eyepiece - 2-inch 31mm
The Celestron Luminos 31mm (2-inch) Eyepiece is designed for serious astronomy.
- Ultra-Wide 82º Field-Of-View (FOV)
- 6-Element, Fully-Multi Coated Lens for Bright, High-Contrast Views
- Parfocal to Minimise Re-Focusing
- Retractable Eye Cups for Comfortable Eye Relief
- Polish & Anodised Aluminium Construction Protected by Non-Slip Rubber Grip
- Celestron Australia 2-Year Warranty
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The Celestron Luminos 31mm (2-inch) is an Eyepiece for serious astronomy.
The Celestron Luminos series has deep-space observation in mind, offering a remarkable, ultra-wide, 82 Degree Field of View for a holistic view of Deep Sky Objects. With 6-element, full multi-coated lenses, the 31mm Celestron Luminos Eyepiece delivers with bright, high-contrast and detailed images.
This eyepiece is parfocal, meaning it can be switched out easily with little to no additional focusing required. It also has retractable eye cups so that whether you wear glasses or not, viewing is always comfortable.
The Celestron Luminos 31mm 2-inch Eyepiece also has a polish and anodised aluminium construction protected by a non-slip rubber grip for easy and confident use.
Recommended Accessories
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Lens Cleaning Pen | Keep your eyepieces in check with a 3-in-1 lens cleaning pen! |  |
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saxon Optical Lens Cleaning Kit | Keep your binoculars and lenses in top shape by keeping it free from dust and degree and cleaned regularly! | |
About Celestron
Celestron was founded by Tom Johnson whose first telescope design was a simple 6-inch reflector, built for his young son. He gradually progressed to making larger scopes in more sophisticated designs. Today, the Celestron company is an industry leader in designing and manufacturing optical equipment including telescopes (computerised and non-computerised), binoculars, spotting scopes and its accompanying accessories. Celestron's legacy spans 50 years, and has grown to enjoy recognition from amateurs to serious astronomers globally. The company seeks to remain innovative by growing its product offerings, while supporting science education around the world.
Product Code: 93435
Q1. How do I choose the right eyepiece for an object?
Generally, choose a low-power eyepieces (e.g., 25–40mm) for wide views of star clusters or to locate objects. Mid-range (10–20mm) is great for planets and the Moon. High-power eyepieces (below 10mm) are for close-up detail but may be affected by atmospheric conditions. These numbers may require an additional barlow lens for low focal length telescopes.
Tip! Use our Telescope Field of View Calculator to work out the relative field of view of an eyepiece through a telescope.
Q2. How do I clean telescope eyepieces?
Great question! Avoid cleaning unless necessary. If you notice smudges or dust affecting your view, blow off loose dust with a soft air blower. Use a lens brush for stuck particles. For smudges, use a few drops of lens cleaning fluid on a microfibre cloth or lens tissue, gently wiping in a circular motion from the centre outward. We recommend the saxon Optical Lens Cleaning Kit.
Q3. How should I store eyepieces when not in use?
Keep eyepieces in a protective case or pouch to prevent dust, scratches, and moisture. Always replace caps after use, and avoid storing them in humid environments to prevent fungal growth.
Q4. Can I use filters with eyepieces?
Yes. Most 1.25" and 2" eyepieces accept threaded filters at the base. Screw them on gently and make sure they are clean and scratch-free before use.