I want to thank all for your interest in our meters and timers.
Karl and I always said we'd do this for fun and when the fun ran out, we'd stop. With darkrooms on the wane and LED light sources, the need for a closed loop timer has faded. We still have plenty and the deals are good. And there are still photo diodes (probes) available, too. Occasionally, I repair an old MetroLux.
The Pocket Spot light meter -- well, we just don't make them any more. My health has taken a turn. Not sure what direction I'm going, but I have other things that must be done before I'm done.
I have some other little electronic gadgets I've designed. For these, I will post the schematic, simulation file (SPICE), and a picture or two as open source and you can build your own.
Happy Snapping.
PS, if you need to contact me
e j woodbury at gmail dot com
Sunday, June 24, 2018
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Pocket Spot
Pocket Spot
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.
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.
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