Blue Fireball M42x0.75 T / T2 Thread Variable Spacer Ring Set (Includes 5mm, 10mm, 20mm, 30mm & Adjustable 9-14mm Extensions) # S-SET1

Description/Uses:, Set of four fixed length and one adjustable length M42x0.75 T/T2 thread extension rings/barrel spacers, Fixed length spacers

Orion 5528 T-Thread Spacer Ring Kit : Telescope Eyepieces : Electronics

Spacer Rings / Extenders - Adapters - Parts & Accessories

152mm (6in) Speedring Insert - Comet, Dynalite, and Compatible – Fotodiox, Inc. USA

Astromania M42X0.75 Female to M42X0.75 Female Thread Telescope Adapter - 9mm : Electronics

Astromania M42X0.75 Female to M42X0.75 Female Thread Telescope Adapter - 9mm : Electronics

Blue Fireball Gender Changer: M54x0.75 Male-Male Thread Adapter with Internal 2 SCT Thread (Zero Optical Length) # G-8M

M42X0.75 female thread on both sides. This is a very high quality anodized aluminum adapter. Converts an M42X0.75 male thread to a M42X0.75 female

Astromania M42X0.75 Female to M42X0.75 Female Thread Telescope Adapter - 9mm

Set of 9 aluminum spacer rings - color may be black or silver depending on stock, Use to fine tune the spacing or introduce a small amount of

Blue Fireball 9-pc Fine-Tuning Spacer Ring Set for M54 Threads - 0.1 to 1.0 mm # S-SET9

Set of four fixed length and one adjustable length M42x0.75 T/T2 thread extension rings/barrel spacers. Thread Specification (External Thread) =

Blue Fireball M42x0.75 T / T2 Thread 5-pc Variable Spacer Ring Set S-SET1

SV603 Protable Handheld Microscope for Biological Science Education for All Ages.The SV603 pocket microscope, not only has high performance optical quality, but it is also much smaller than you think. It is a good gift for those who like to go outdoors to explore the world, as well as students who need to observe and experiment in the field.60-120x zoom magnification can be adjusted freely. Low damping zoom, slow and smooth operation.

SVBONY Extension Tube M42x0.75 on Both Sides Length T2 Extension Tube Kit Length 5mm 10mm 15mm 20mm

Extension Tubes AstronomyConnect

SVBONY Extension Tube M42x0.75 on Both Sides Length T2 Extension Tube Kit Length 5mm 10mm 15mm 20mm : Electronics

Orion 5528 T-Thread Spacer Ring Kit : Telescope Eyepieces : Electronics