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.

Specifications:


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

Accessories:


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

No comments:

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.