The lens cap protects the lens from dirt, dust, and moisture when not in use. It can be used with all Q cameras and fits on the lens hoods included in the scope of delivery.

The Leica Q3 camera accessories offer a range of color options and can be mixed and matched according to personal preferences. These include:

- Thumb support
- Hotshoe cover
- Soft release button
- Lens hood, round 
- Lens cap

All of these accessories come in three finishes: aluminum, black anodized or silver anodized, as well as brass, blasted.