Extension tube set does not affect image quality as there is no optics inside. increase ISO, decrease shutter speed;.
eBay
Neewer Wide Angle Lens For Sony ZV1 Camera 2-in-1 18mm HD Wide-Angle & 10x Macro Additional Lens with Extension Tube
Aliexpress UK
Nikon D3500, D3400, D3300, D3200, D3100, D3000. This macro extension tube set can be transform your lens into a macro lens. Extension tube set does not affect image quality as there is no optics inside.
eBay
1/4" Camera Phone Clamps Extenders Flexible Tube Live Broadcast Bracket Extension Adjustable for Camera Live Streaming K1KF
Aliexpress UK
The Kenko 10 + 16mm Extension Tube Set is designed specifically for 4/3rd lenses, featuring a twist-on fastening mechanism for easy attachment. Made in Japan, this unit is suitable for Micro Four Thirds lens fittings, providing photographers with the ability to use longer focal lengths to capture unique and creative shots. Ideal for those looking to experiment with different lens options and explore new creative possibilities in their photography.
eBay
Automatic Extension Tubes 12mm + 24mm R Mount Macro Tubes Sets Lightweight for Canon RF-Mount Lenses Canon R5/R6/R7/R10 Camera
Aliexpress UK
Extension tube set does not affect image quality as there is no optics inside. increase ISO, decrease shutter speed;.
eBay
Mcoplus AF Auto Focus Macro Extension Tube Ring 10mm 16mm For Panasonic Olympus micro 4/3 M4/3 M43 Mount Mirrorless Camera Meike
Aliexpress UK
The Canon FD Camera Extension Tubes by Jessop are a set of three tubes in 13mm, 21mm, and 31mm lengths. Specifically designed for Canon FD mount lenses, these twist-on extension tubes allow for closer focusing on subjects for macro photography. Made by Jessop, a trusted brand in the photography industry, these extension tubes are compatible with Canon EOS lenses, providing photographers with a versatile and high-quality solution for capturing stunning close-up shots.
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Carbon Fiber Center Column Extender Tube Extension for Tripod Monopod 22/25/28/32mm Camera Mount
Aliexpress UK
A set of 5 c mount extension tubes. They have no markings on them as to maker or the size.
eBay
Viltrox Auto Focus Macro Extension Tube Lens Adapter for Sony E Canon EF RF Nikon Z Panasonic Olympus M43 Leica L Fuji X Camera
Aliexpress UK
Provides images with better quality than close-up filter, a good substitution to expensive macro lenses for macro photography. 3 rings make 7 different combinations, which extends the lens focal length for close-up shot, and won't alter the optical quality to ensure there is no glare in image.
eBay
Aluminum T2 Adapter Telescope Extension Tube 1.25 inch Telescope Mount Adapter Thread T-Ring for Canon EOS /Nikon DSLR Camera
Aliexpress UK
This looks to have been very little used.
eBay
Meike MK-P-AF3B Auto Focus Macro Extension Tube Ring Kit for Panasonic Olympus M4/3 M43 MFT Mount Mirrorless Camera
Aliexpress UK