With:

Instruction sheet, Speed Table. Box.

Electric enlarging meter. Exposure times: ¼ s - 144 min.

A screen, part translucent part opaque, is illuminated by the enlarger lamp through the negative, part of the screen is also illuminated from below by a bulb. The bulb is adjusted by a rheostat, when the two parts of the screen appear the same a pointer will show the exposure time for several paper types. A paper tester was sold with the meter, at first as an extra then included, to determine its grade. Price £1.15.0.

Notes:

Address on leaflets: Drem Products Ltd. 37 Bedford St. Strand. London. WC2.

With:

Two instruction sheets. Two letters from Drem Products concerning the sale of a Largodrem d. 1932.

Electric enlarging meter using a grease spot. Paper speed scale: 0 - 120. Exposure scale: 1s - 30m. The bulb is filtered to give monochrome light.

Some illustrations show a square body. A.J. Haynes wrote "Projection Printing" describing the use of the M.C.M. meter.

Notes:

Distributed by Neville Brown & Co. 44 Berners St. London. W1. Brown moved from this address in c. 1941.

With:

Instructions. Pamphlet by Minicam. Box.

Enlarging exposure meter.

This is a grease spot photometer, light from the enlarger is reflected by a mirror onto the back of a screen that contains the spot. A standard lamp illuminates the front of the screen. As the lamp is moved towards or away from the screen the front and back light are equalised and the spot will disappear. The exposure time can then be read from a scale between the lamphouse and the screen. The lamphouse carries a set of rotating apertures, which varies the light according to the paper speed.

Serial Number:

2999/30 .

Notes:

Retailer's label: J.B. Holden. 16 Corporation St. Preston.

With:

Instructions. Separate sheet of paper speeds. Transformer. Box.

Details as above.

With:

Box.

A version of the Lumimeter that was powered from a battery. A voltmeter and regulator are included to adjust the voltage. Other details as above.

With:

Box.

Enlarging exposure meter using a grease spot. Scale: 1 - 240s. Paper grades: Extra Soft, Soft, Normal, Vigorous, Hard.

The meter is first calibrated for the type of enlarging lamp. To determine the exposure: 1) Set the paper speed (from a supplied list) against an index. 2) Bring the meter 'spot' to part of the image that is to show detail, rotate the main knob until the spot matches the background the exposure in seconds is then shown on the dial. The meter is well designed, the two moulded plastic sides have grooves in which the internal components sit, the sides are pulled together by a single rod.

With:

Box.

Enlarging exposure meter using a grease spot. Scale: 1 - 240s. Paper grades: Extra Soft, Soft, Normal, Vigorous, Hard.

Slight differences to the previous model, the cut out behind the grease spot is circular rather than square. The box has the N. Ireland address.

With:

Instructions. Guarantee d. 1961. Box.

Enlarging timer and print meter.

With:

Instruction book, Guarantee, Box.