Projectors without a lens

Supplied without lens

— projectors supplied without a lens in the kit (or with a lens that has the simplest characteristics and is designed more for performance testing than for serious use).

This configuration option is found mainly among expensive professional-level models. Optics for such a projector will have to be purchased separately; on the other hand, you can choose it at your discretion, while a complete lens does not always meet the requirements of a particular user.