Nikon AS-4 Flash Coupler
Original Nikon flash coupler for the F3 system.
Analog gear. Honest descriptions. Uncommon finds.
A rotating collection of carefully inspected camera accessories, underwater photography gear, collectible pieces and useful donor parts—selected by someone who actually knows what the knobs do.

Current catalog
22 items shown
Original Nikon flash coupler for the F3 system.
Classic split-image screen for precise manual focusing.
Bright microprism screen with a mismatched Nikon box.
Original +2 strength finder correction eyepiece.
Wide-angle conversion lens made for the Motomarine II.
Wide-angle lens for the original Motomarine 35 system.
Four non-working bodies plus finders, caps and donor parts.
Official 2026 World Cup volunteer jacket in size 2XL.
Optical framing accessory for the Nikonos 28mm lens.
Wide-angle conversion lens for compatible SeaLife digital and 35mm cameras.
Dedicated underwater conversion lens with slight edge discoloration noted.
Conversion adapter for mounting select Motomarine II lenses to a Canon WP-DC300 housing.
Protective camera-and-lens case with padding and an interior accessory pouch.
Hard-to-find external framing accessory for the Motomarine II system.
Unused close-up accessory for compatible Bonica underwater equipment.
58mm-thread auxiliary lens with detachable macro section.
Two rugged aluminum spotlights; both operate, with one bulb included.
Official volunteer shoulder bag with a Philadelphia mini hook-and-loop patch.
Official one-size 2026 World Cup volunteer cap.
Official volunteer beach towel still sealed in its original plastic.
Official volunteer cooling towel, never used and no longer in plastic.
Official Philadelphia mini hook-and-loop volunteer patch.
Field notes
Buying, using & keeping old gear alive
A short checklist for condition, compatibility and the parts that can turn a bargain into a project.
Read articleTwo useful manual-focus screens, and the practical difference you see through the finder.
Read articleWhy a familiar focal length or brand name is not enough when shopping for older underwater systems.
Read articleThe seller
I have spent years buying, using and maintaining analog photography equipment. Every listing is written to answer the questions I would ask: What fits? What is included? What shows wear? What does not work?
This catalog is a quick way to browse the collection. Individual eBay listings remain the source for exact photographs, current pricing, shipping details and checkout.