Quantity: 9pcs. (all 9pcs). Special aviation aluminum alloy, high strength, impact resistance, twist and pressure. Machining process. It is important to note that typically, the farther away from the lens you place a filter the worse the optics will be.
eBay
FOTGA Auto Focus AF Electronic Lens Adapter Ring for Canon EF EF-S to EOS M EF-M Camera
Aliexpress UK
Made from high quality alloy, this adapter is superior to most of the cheap imported adapters currently available. Professional Nikon F to Sony NEX Lens Mount Adapter.
eBay
M42 Lens Adapter Ring M42 Screw Mount Lens Adapter M42-FX M 42 Lens For Fujifilm X Mount Camera Adapter Ring
Aliexpress UK
The adapter is twist-on, ensuring a secure fit, and is made in China. Made from high quality alloy, this adapter is far superior to most of the cheap imported adapters currently available. A small number of lenses protrude into the mirror box when mounted and can clash with the mirror.
eBay
VILTROX NF-E1 Lens Adapter Ring Auto Focus Lens Adapter Aperture Control for Nikon F Lens to Sony E mount A7SI A7II A7II Adapter
Aliexpress UK
Made from high quality alloy, this adapter is superior to most of the cheap imported adapters currently available.
eBay
L39-NEX Lens Adapter Ring L39 M39 Mount Lens To For Sony E Mount NEX-5 NEX-7 NEX-C3 NEX-VG20 Adapter Ring
Aliexpress UK
eBay
Auto Focus Lens Adapter VILTROX NF-E1 Lens Adapter Ring Aperture Control for Nikon F Lens to Sony E mount A7SI A7II A7II Camera
Aliexpress UK
M42 LENS TO CANON EOS MOUNT ADAPTER. compatible with: ALL Canon EOS DSLR (as long as the body takes Canon EF lens). Notice: Although the lens will fit physically, automatic diaphragm, auto-focusing, or any other functions will not operate correctly while using this adapter.
eBay
High Quality Lens Mount Adapter OM-EOS Professional Metal Mount Lens Adapter Ring for Canon DSLR SLR Camera
Aliexpress UK
360° Rotating Stand Bracket Detachable Holder For DJI Mavic 2 Pro Zoom Drone. 1000KV 270W N2830 RC Drone Quadcopter Helicopter Aircraft Plane Brushless Motor. 1 Lens Ring Adapter. Stainless Steel Speaker Whistle Model for Tamiya 1/14 RC Car Tractor Trailer.
eBay
Metal for M42-EOS Lens Adapter Ring for M42 Lens to Canon EOS EF 5DIII 5DII 5D 6D 7D 60D Adjustable Lens Adaptor Connecting Ring
Aliexpress UK
Aluminium alloy material, strong and durable.Specifications 1 × Lens Mount Adapter Ring. Easy to install and flexible to use. Due to different monitors and lighting, the actual color of the item might be slightly different from the color shown in the pictures.Included.
eBay
T2 Mount Telescope Lens Adapter Ring To For Canon EOS Ring Lens Adapter
Aliexpress UK