10.5 mm Nikon Fisheye. Suggest looking this lens up on Ken Rockwell for more details. No fungus, Focus clean and smooth.
eBay
Pickle Power 52MM 55MM 58MM 0.35x Fisheye Nikon Wide Angle Lens for Nikon D5200 D5100 D3500 D3400 D3300 D3200 D3100 D3000
Aliexpress UK
Nikon AF Fisheye Nikkor 10.5mm f/2.8 G ED DX Lens – Mint Condition & Fully Working. Capture stunning ultra-wide-angle shots with thisNikon AF Fisheye 10.5mm f/2.8 G ED DX lens – a must-have for creative photography enthusiasts.
eBay
Tectra 52MM 0.35x Fisheye Nikon Wide Angle Lens for Nikon D5200 D5100 D3500 D3400 D3300 D3200 D3100 D3000
Aliexpress UK
Good cosmetic condition but fine thready fungus behind the front element. Priced accordingly. Complete with front and rear caps.
eBay
JINTU 8mm f/3.5 Wide Angel Super Fisheye Lens for Nikon DSLR Camera D7500 D7200 D7600 D3400 D3200 D5200 D5400 D5500 D5600
Aliexpress UK
Focal range：8mm number of aperture blades:9 blades Minimum Focusing. Note it will only work in Manual mode. Length: 84mm. Minimum Focusing Distance:10cm. Number of aperture blades:9 blades.
eBay
ASTRHORI 6.5mm F2.0 APS-C Manual Circular Fisheye Lens 192° Ultra Wide Angle Lens for Nikon Z Sony E M4/3 Canon RF Fuji X Mount
Aliexpress UK
Great fully functional condition. Lens is optically great with minimal dust and very minor marks, which will of course not affect the image in any way. AF works well and the lens functions fully as intended.
eBay
DK-23 Eyepiece Viewfinder Eyecup compatible Nikon D7100 D7200 D300 D300s DK23 Eye cup Cover blinkers for Nikon DSLR Camera
Aliexpress UK
This is the Sigma 18-35mm f/1.8 DC wide zoom. lens (Nikon Fit) in excellent condition. Perfect optics, smooth operation and AF is fast and zippy.
eBay
5X DK-19 Rubber Eyepiece Eye Cup Eyecup For Nikon Canon SLR Camera For Nikon DF D2X D2H D3 D3S D3X D4 D4S D700 D800 D810 DSLR
Aliexpress UK
With lens and rear lens cap. Free from dust and fungus.
eBay
JJC Round Eyecup Soft Silicone Viewfinder Eyepiece Eyeshade Cover for Nikon Z5II Z7II Z7 Z6III Z6II Z6 Z5 Replaces Nikon DK-29
Aliexpress UK
Front cap (SIGMA). Rear cap (∑ FOR NIKON). The focus ring moves smoothly with appropriate resistance. The aperture blades are clean, free from oil, and function properly. About Importer's Obligation.
eBay
VELEDGE Ultra Fisheye Lens Adapter 37MM/43MM 0.3X HD Fisheye Wide Lens Adapter with Hood Only for Video Cameras Camcorders
Aliexpress UK