Sekonic NP Finder 5 Degree for L-358

NP Finder; Non-parallax spot viewfinder attachment with ordinary waterproof structure

There are three types of NP finders with angles of coverage of 1, 5 and 10. Since the single-lens reflex method is employed, it is possible to measure as aimed without parallax. Measuring range (refelected light)

Ambient: NPF 1º EV5 EV24.4
NPF 5º EV3 EV24.4
NPF 10º EV2 EV24.4

Flash:
NPF 1º F8 F90.9
NPF 5º F4.0 F90.9
NPF 10º F2.8 F90.9