Lens quality and interchangeable lenses
Takes a bayonet lens system, e.g. installation projectors with short, standard and long-throw lenses.
- Standard
- ISO/IEC 21118 Table 1
- ISO 21118
- ISO 21118 optional
How to compare it
Interchangeable lens
Installation class. The throw ratio then becomes per-lens data.
Deep cut
Interchangeable lens. EU 2023/826 explicitly excludes projectors with interchangeable lenses from its standby limits (Annex II).
Terms on this page
Large-venue / installation projector
5,000–40,000+ lumens, interchangeable lenses, edge blending, warping, 24/7 operation, HDBaseT/SDI inputs. Examples: Epson Pro L, Panasonic PT-RQ/RZ, Christie, Barco, NEC/Sharp. ⚖ category = installation, optics.interchangeable_lens
Lens quality / chromatic aberration / focus uniformity
Glass vs plastic elements, lens element count, edge sharpness and CA fringing. Review-sourced, and a key differentiator in the $1–3k tier. ⚖ optics.lens_elements, optics.lens_material
Interchangeable lens / lens mount
Installation projectors take swappable lenses. ⚖ optics.interchangeable_lens, optics.compatible_lenses[]