For coastal wildlife photography, a useful cleaning kit is simple: a manual air blower, several individually clean microfiber cloths, a soft lens brush or lens pen and a small amount of manufacturer-safe lens-cleaning fluid. Carry spare cloths because a cloth contaminated with salt, grit or oil should not go back onto a lens.
Remove grit before wiping
Blow loose particles away before touching the glass. Rubbing sand or grit across a front element can cause damage. Avoid using your clothing, tissues or a dirty cloth.
Dealing with sea spray
Salt residue can smear after the water evaporates. Work gently with appropriate lens-cleaning fluid and a clean cloth rather than repeatedly polishing a salty surface dry.
Keep the kit itself clean
Store clean and used cloths separately. Keep the blower nozzle capped or protected from debris and do not touch a lens brush with oily fingers.
A four-item kit is enough
For most photographers, a manual blower, clean microfiber cloths, a small lens-safe fluid and a soft brush/lens pen cover the real field problems. The technique matters more than buying a large kit: blow first, then wipe only with clean material. Replace or wash contaminated cloths; repeatedly polishing salt or grit with the same cloth creates more risk than leaving a small spot until you can clean safely.
