Johnson Standard Exposure Calculator 

Every now and then I am given old bits of photographica to play with. Many of my older cameras do not have any form of metering so I usually use the sunny f11 rule (no, not f16 I’m in the UK). This neat little calculator dates from the late 1940’s and is surprisingly accurate. You simply move the dial for film speed, again for time of day and year, again for scene and finally for lighting conditions. You can then read off an accurate shutter speed and aperture. 

    
 

Advertisements

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s