Meter Type:

Calculator.

Calibration:

Exterior - Shutter speed: 1/400 - 25s. Aperture: f4.5 - f56, 1 - 128 US.
Interior - Shutter speed: 1/10 - 8m. Aperture: f3 - f40, 1 - 128 US.

Attributes:

Exterior settings for - Hour of day, month. Sky condition. Subject. Tone and lighting of subject. Type of emulsion.
Interior settings for - Colour of floor. Colour of walls. Distance from window. Amount of sky visible in window. Type of exterior light. Type of emulsion. French text.

Meter Type:

Calculator.

Calibration:

Exterior - Shutter speed: 1/400 - 30s. Aperture: f4 - f56, 1 - 128 US.
Interior - Shutter speed: 1/10 - 10m. Aperture: f3 - f56, 1 - 128 US.

Attributes:

Exterior settings for - Hour of day, month. Sky condition. Subject. Tone and lighting of subject. Type of emulsion.
Interior settings for - Colour of floor. Colour of walls. Distance from window. Amount of sky visible in window. Type of exterior light. Type of emulsion. English text.

With:

Instruction sheet from J.A. Sinclair. 54 Haymarket. London.

Meter Type:

Calculator.

Calibration:

Aperture: f3.5 - f14.

Attributes:

Country Locations settings for - Hour of day, month. Sky condition. Scenery. Tone and lighting of subject. Filter factor.
Town Locations settings for - Hour of day, month. Sky condition. Location. Tone and lighting of subject. Filter factor.
English text.

With:

Case.

Meter Type:

Calculator.

Calibration:

Aperture: f2.7 - f14.

Attributes:

Country Locations settings for - Hour of day, month. Sky condition. Scenery. Tone and lighting of subject. Filter factor.
Town Locations settings for - Hour of day, month. Sky condition. Location. Tone and lighting of subject. Filter factor.
English text.

With:

Instructions. Case.