Wednesday, June 20, 2007

MetroLux II Specs

Guarantees accurate and repeatable print exposures without the use of expensive voltage regulators by turning any printing system (contact or enlarging) into a closed-loop, feedback system. With a strategically mounted MetroLux II® photo sensor monitoring light output during exposure, the MetroLux II® Darkroom Lamp Controller compensates for intensity fluctuations by extending or shortening exposure lengths.

Since 1986, Redlight Enterprises has provided a cost-effective tool to eliminate the problems that photographers faced with voltage fluctuation, coldlight drift, and lamp aging. MetroLux II® is so versatile, it is used by photographers exposing platinum prints outdoors, compensating for cloud cover during exposure.

In 1993, the MetroLux II® Darkroom Lamp Controller introduced many new features:

Expanded time base: 0.1 to 9990 lux or seconds

Dual Calibration Channels w/ Three Memory Locations

Hold/Reset Option during exposures

Built-in Shutter Tester

Remote Sensor/Projection Densitometer Accessory

Compatible with Variable Contrast Heads

Lamp Decay Factoring

Dual Calibration Channels are ideal for use with twin-grid Variable Contrast coldlights. Due to rugged circuitry, no contactors are necessary for use with grid lamps up to and including 12" x 12". Battery-free, Nonvolatile Memories never forget calibration and exposure values.

Built-in camera Shutter Tester times exposures of 1/2000 to 6 seconds on focal plane and leaf shutters.

Lamp Decay Factoring computes light fall-off at the end of each exposure. Now, a "burst" printing of 5 two-second exposures equals a single ten-second exposure.

With the Remote Sensor accessory, projected light intensities can be measured at the easel to help determine contrasts, match grey-values, or automatically recalculate exposures during print-resizing.


Input/Switched Output 110VAC, 60Hz/720 Watts, Max (220V available)

Display 0.5" Red LEDs

Enclosure 2"H x 6.5"D x 8"W

Exposure Range 0.1 - 9990 lux or seconds

Channels 2 Calibration Channels, 3 Memories each

Percentaging Range 25% - 250% of exposure

Repeatability Within 1% (typically better than 0.5%)

Programmable Controls LED Brightness, Metronome, Hold/Reset Option

Photo Sensor On 10' cord

Sensitivity/Peak Response 3200 to 7300 Å/5600 Å

Temperature Range -10º to +60ºC


Remote Sensor For Easel-top projection densitometry

Footswitch 8' cord, operates either Focus or Expose

Additional Photo Sensor 10' cord for additional lamp heads

Zone VI Coldlight Adapter 6' RCA to 3P Din

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Pocket Spot

Pocket Spot
Metering in the Office, 10 2/3 EVs

Pocket Spot

Pocket Spot
Metering in the Office, 4 1/3 EVs

Pocket Spot Spec Sheet

Pocket Spot Digital Light Meter Specs

Display: 2-digit Red LED with 1/3, 2/3 LED indicators

Dial: White, laser-engraved on Meter's anodized color background. Intermost dial is ISO with f/# on the outside. f/1.0 to f/128. Outer dial is shutter speeds from 8 minutes to 1/4000 sec on the inside and EV on the outside. EVs from -1 to 20. Body is marked with Zones from Zero to X (10). [Romans didn't have a zero, but what are you going to do? ]

ISO: 3 to 12800 ISO, marked in 1/3 stops

EV range: -1 2/3 to 23 at 100 ISO

Spectral Sensitivity: Compensated for "typical" B&W film, i.e. HP5+ or Tri-X

Angle of View: approximately 1 degree, smaller at very high EVs and 3 degrees at lower EVs

Viewing: Bore-sight through the hole the length of the chassis. Meter is held about 12" or 300mm from the eye (length of strap)

Linearity: about 1% from low to high.

Calibration: Not required. No adjustments inside.

Finish: Black anodized over a solid block of machined aluminum. Texture is random tumble over stones before anodize. Other colors in consideration at extra cost are RED and BLUE.

Battery: 6V PX28 or equivalent, Supplied

Dimensions: 2.25" x 2" x 3/4" (L x W x T) 57 x 50 x 19 mm
Dial on top is 1/8" thick, 3 mm

Weight: 4 1/8 oz (117 grams) with strap and battery, both included.

specifications subject to change

More pictures on page two near bottom.