SUMMARY
Digital cameras continue to feature controls and settings that originated in the film era, such as the 'B' (Bulb) mode and specific shutter speed markings. The 'B' setting, historically linked to pneumatic bulbs, still offers open-ended exposure durations. Shutter speed markings like 1/125 are rounded approximations of the actual 1/128 values dictated by ISO standards, a convention carried over from film mechanics. Flash sync speed, determined by the physical operation of focal plane shutters or sensor readout, also remains a relevant limitation in digital photography.
TAKEAWAYS
Camera settings like 'B' mode and shutter speed markings are inherited from film-era mechanics.
Shutter speed values such as 1/125 are rounded approximations of actual values like 1/128, following ISO standards.
Flash sync speed is a physical limitation based on shutter operation or sensor readout, persisting in digital cameras.