Victor

1901

Bausch & Lomb Optical Co.

Rochester

USA

Shutter Type:

Two-blade return, rectilinear movement. Spring powered, pneumatic exposure control.

Attributes:

Speeds 1/100 - 1, B, T. Mounted between the lens. Finger and pneumatic release.

Serial Number:

58028 .

Notes:

Marked Rochester Optical Co.

With:

f8 lens.

References & Notes:

BP 8358/1901.

Unicum

1897

Bausch & Lomb Optical Co.

Rochester

USA

Shutter Type:

Two-blade return, rectilinear movement. Spring powered, pneumatic exposure control.

Attributes:

Speeds 1/100 - 1, B, T. Mounted between the lens. Finger and pneumatic release.

Serial Number:

67066 .

With:

f8 lens.

The Unicum was produced for several years. The casing is usually lacquered brass which varies from pale yellow to deep orange in colour.

References & Notes:

BJA 1900, p. 69.

Argos

c. 1900

Bausch & Lomb Optical Co.

Rochester

USA

Shutter Type:

Two-blade pivoted return. Spring powered, spring regulation.

Attributes:

Speeds 1/100 - 1/25, B, T. Mounted between the lens.

Serial Number:

3176 .

With:

f8 lens.

References & Notes:

BP 8353/1901.

Automat

1906 Model

Bausch & Lomb Optical Co.

Rochester

USA

Shutter Type:

Two-blade pivoted return. Spring powered, pneumatic exposure control. Everset.

Attributes:

Speeds 1/100 - 1, B, T. Mounted between the lens. Finger and pneumatic release.

Identification:

Chrome finish.

Notes:

From a Premo camera.

With:

f8, 6 ½" B&L Planatograph 4" x 5" lens. Diaphragm scale marked Eastman Kodak Co. Succ'rs to Rochester Optical Co. US scale.

Automat

1906 Model

Shutter Type:

Two-blade pivoted return. Spring powered, pneumatic exposure control. Everset.

Attributes:

Speeds 1/100 - 1, B, T. Mounted between the lens. Finger and pneumatic release.

Identification:

Brass finish.

The 1901 model had the speed setting lever below the lens, the model of 1906 had the setting lever on a disc over the lens.

References & Notes:

BJA 1903, p. 68. BJA 1905, p. 69. BJA 1906, p. 76. Sinclair Cat. p. 180.

I T B

c. 1901

Bausch & Lomb Optical Co.

Rochester

USA

Shutter Type:

Two-blade pivoted return. Spring powered.

Attributes:

Speeds I, B, T. Mounted between the lens. Finger and pneumatic release.

With:

Ensign lens.

I T B

c. 1902

Shutter Type:

Two-blade pivoted return. Spring powered.

Attributes:

Speeds I, B, T. Mounted between the lens. Finger and pneumatic release.

Notes:

From a Pocket Poco.

With:

f8 lens.

A popular shutter which, despite its single speed, is found on some expensive cameras as well as cheaper models.

References & Notes:

BP 8360/1901.

Early Photography

Victor

1901

Bausch & Lomb Optical Co.

Rochester

USA

Shutter Type:

Attributes:

Serial Number:

Notes:

With:

References & Notes:

Unicum

1897

Bausch & Lomb Optical Co.

Rochester

USA

Shutter Type:

Attributes:

Serial Number:

With:

References & Notes:

Argos

c. 1900

Bausch & Lomb Optical Co.

Rochester

USA

Shutter Type:

Attributes:

Serial Number:

With:

References & Notes:

Automat

1906 Model

Bausch & Lomb Optical Co.

Rochester

USA

Shutter Type:

Attributes:

Identification:

Notes:

With:

Automat

1906 Model

Shutter Type:

Attributes:

Identification:

References & Notes:

I T B

c. 1901

Bausch & Lomb Optical Co.

Rochester

USA

Shutter Type:

Attributes:

With:

I T B

c. 1902

Shutter Type:

Attributes:

Notes:

With:

References & Notes: