From: Canon EF lens mount - Wikipedia, the free encyclopedia
Stepping motor
Canon EF 40mm f/2.8 STM pancake lens
Stepping motor (STM) lenses were first announced in June 2012, alongside the...
Type: Posts; User: Iguanasan
From: Canon EF lens mount - Wikipedia, the free encyclopedia
Stepping motor
Canon EF 40mm f/2.8 STM pancake lens
Stepping motor (STM) lenses were first announced in June 2012, alongside the...