Canon Speedlite MR-14EX mercury including minor pinholes in the

including minor pinholes in the bellows

that much I can promise you

This Leitz Elmar 3

it’s not clear

but there you go

Canon Speedlite MR-14EX mercury including minor pinholes in theThe Canon Speedlite MR 14EX is a macro ring flash compatible with Canon E TTL and E TTL II systems. That means it'll work on your Canon digital camera with full TTL functionality even on newer mirrorless cameras. Ideal for macro work, this flash clips to the front of your lens and provides even, reliable lighting. Clips directly to the Canon EF 50mm f2. 5, EF S 60mm f2. 8, EF 100mm f2. 8 Macro USM, and MP E 65mm f2. 8 macro lenses; it also includes a