2in Telescope Extension Tube Black Eyepiece Extender Adapter M48x0.75mm Threads Astronomy Telescope Accessories 50mm / 2inFeature: 1. Functional Design: Provides extra focusing distance to increase focal length extension. Sometimes necessary for certain eyepiece or telescope camera combinations for focusing. 2. Extended Focusing Needed: Often requires more focusing distance when observing short distances on the ground with a telescope or using field flatteners, correctors, or reducer lenses. 3. Secure Connection: Equipped with 2 fixed screws to support connecting 2 inch telescope eyepieces and astrophotography filters, preventing damage to telescope accessories. 4. Universal Compatibility: Features front end with M48x0.75mm thread for use with 2 inch telescope eyepieces and astrophotography filters, ensuring a … £8.53Joom UKDelivery: to United Kingdom ReportBuy!
M42 M42(36 90) M42 to M42 Mount Lens Focusing Helicoid Adapter Ring 36mm 90mm Macro Extension Tube M42-M42(17-31)Feature: 1. Suitable for M42 mount lens without focusing ring. 2. Can be used as a macro extension tube. 3. No electronic element, manually controls aperture and focusing. 4. Aluminum alloy material, CNC precision machining, durable and sturdy. 5. Easy to install and simple to use. Specification: Features: Suitable for M42 mount lens without focusing ring. Can be used as a macro extension tube. No electronic element, manually controls aperture and focusing. Aluminum alloy material, CNC precision machining, durable and sturdy. Easy to install and simple to use. Specifications: Material: Aluminum Alloy Lens Compatibility: M42 screw mount lens Length: 17mm 31mm 25mm 55mm 36mm 90mm(optional) Packing … £19.63Joom UKDelivery: to United Kingdom ReportBuy!
