VBESTLIFE Telescope Eyepiece Focal Reducer Lens, Aluminium Alloy,0.5X Focal Reducer M28 Thread Lens for 1.25 Inch/31.7mm Astronomy Eyepiece

• Good quality aluminum alloy housing is durable for years of use. Premium optical lens helps transmit more light for clearer view
• It can shorten the focal length by 0.5X and increase the field of view, usually used for a longer focal length telescope
• The reducer has standard 1.25 inch interface with M28.5x0.6 thread, it fits onto the nose of any 1.25 inch eyepiece
• Can both have a filter attached and be threaded onto an eyepiece or camera for more uses
• It is not recommended for very fast scopes or very wide angle eyepieces

Specification: Brand: Datyson Color: Black Material: Aluminium Alloy Focal Reducer: 0.5X Interface: 1.25 inch / 31.7mm Thread: M28*0.6mm  Size: Approx. 30 x 13mm / 1.18 x 0.51inch Weight: Approx. 0.42oz / 12g Package List: 1 x Focal Reducer