Guild Kelly 16mm Imperial Calculator aka Kelly Wheel

16mm Kelly Wheel
The Guild Kelly Calculator has been used by camera technicians worldwide since 1955 and is an indispensible tool for all camera assistants. Calculate Depth of field, hyperfocal distances, camera running times, exposure compensation and more in seconds with this easy to use tool more?

Features of film Guild Kelly Calculators:


Depth of field calculations
Film usage calculator
Exposure compensation for:
Popular filters
Shutter angles
Different camera speeds
Foot-candles table
ASA-DIN conversion
Weighs only 20g
Thickness of a credit card
Fits all pockets and pouches.
Doesn't need batteries to function