1 Piece 42mm Spotting Scope Mount Adapter. Thread: Both the Adapter are Universal M42x0.75 Thread.
eBay
EYSDON Telescope Smartphone Adapter for Camera Screw (1/4-Inch) - Camera Mount Adapter Phone Mounting Holder
Aliexpress UK
1 Piece 42mm Spotting Scope Mount Adapter. Thread: Both the Adapter are Universal M42x0.75 Thread. It's just take you 1 minute. We'd like to settle any problem in a friendly manner.
eBay
C-MOUNT 5mm Extension Adapter Black Metal C-CS Mount Adaptor Spacer Ring For CCTV Camera Microscope camera Accessories
Aliexpress UK
Applicable Model: Suitable for M4 M3 Mount ILDC. 1 x Adapter Tube. 1 x Adapter Ring. If you do not receive our reply within 48 hours, pls. If you are satisfied with our service, pls.
eBay
9/18pcs Camera Lens Filter 37-82 82-37mm Step Up & Down Ring Adapter Metal Filter Adapter Ring for Camera DSLR Mount Set Kit
Aliexpress UK
Applicable Model: Suitable for M4 M3 Mount ILDC. 1 x Adapter Tube. 1 x Adapter Ring. If you do not receive our reply within 48 hours, pls. If you are satisfied with our service, pls.
eBay
Tripod Adapter 1/4" Male to 1/4" Male Screw Adapter for Various Cameras Action Camera Accessories
Aliexpress UK
Inner ring soft rubber material, no hurt to eyepiece. Eyepiece distance: L ring 38.5-43mm (±1mm). Support phone width between 62-105mm. Fit phone width: about 62-105mm. Due to the light and screen difference, the item's color may be slightly different from the pictures.
eBay
PK-EOS Camera Lens Adapter with Electric Contact for Pentax K Lens for Canon for EOS Cameras Lens Adapters
Aliexpress UK
Suitable for 38-45mm eyepiece. If item is defective after 3 months, you can still send it back to us. We will send you a new one after receiving the defective item.
eBay
1/4 Inch Screw Thread Cold Shoe Tripod Mount Adapter Camera Mount Adapter Camera
Aliexpress UK
1/400 Scale 20cm Aircraft Thai Airways A380 Alloy Plane Model Airplane Souvenir. Inner ring soft rubber material, no hurt to eyepiece. Eyepiece distance: L ring 38.5-43mm (±1mm). 5X 8mm Magnetic Tech Screw Driver Bits Drill Nut Setter Roofing Cladding Set a.
eBay
Camera Tripod Mount Screw for Gopro 1/4-20 Screw Conversion Adapter for Gopro Hero 10 9 8 Sports Camera 1/4" Adapter Screw
Aliexpress UK
Height Adjusting Valve: The height of eyepiece can be adjusted from 67mm to 80mm. Height Regulating Valve: adjustable eyepiece height: Approx.67-80mm / 2.6-3.1in. 1 x Adapter Ring. If you do not receive our reply within 48 hours, pls.
eBay
9/18Pcs Camera Lens Filter Step Up & Down Ring Adapter Metal Filter Adapter Ring For All Camera DSLR 37-82 82-37mm Mount Set Kit
Aliexpress UK