Last Updated 55 minutes ago
Overview
The Type 20165 Coop is a 6 kW overhead soft light. Six silver-bowl lamps send light back into the coated reflector, turning the underside of the rectangular head into a broad source. With the standard 1000/SBIF lamps at 15 ft, Mole lists 95 fc at centre over a 21 × 22 ft field.
Key specifications
| Specification | Type 20165 |
|---|---|
| Power | 6,000 W across six 1 kW positions, 50 A at 120 V |
| Supply and head connector | 120 V AC or DC, six-circuit Socapex |
| Lamp sockets | Six porcelain mogul-screw sockets |
| Dimensions | 46½ × 36¾ × 13½ in. |
| Weight | 34 lb with cable |
| Suspension | Four corner chains meeting at a centre ring |
Replacement lamps
Mole specifies base-up operation. The silver-bowl 1000/SBIF is rated at 3,050 K. Mole rates the reflected light at 3,200 K with that lamp and the original colour-correcting coating.
| Lamp designation | Per lamp | Voltage | Lamp colour | Finish |
|---|---|---|---|---|
| 1000/SBIF | 1,000 W | 120 V | 3,050 K | Frosted, silver bowl |
| DSE-Q1000 | 1,000 W | 120 V | 3,200 K | Clear |
| 1000 | 1,000 W | 120 V | 3,050 K | Clear |
| 1000/IF | 1,000 W | 120 V | 3,050 K | Frosted |
See the 1,000 W Coop lamp in the lamp lookup.
Strengths and limitations
- The silvered portion of the 1000/SBIF redirects light into the reflector, giving the fixture a broad emitting surface.
- The reflector finish is part of the optical system. Repainting a used unit with ordinary white paint changes the basis for the published colour figures.
Practical uses
Above a standing set, compare field size with the floor area the actors cross. At 20 ft the sheet gives a 28 × 29 ft field and 55 fc at centre. For two heads covering the same move, measure the overlap as well as the centre under each Coop.
Output and photometrics
Mole measured the head with six 120 V 1000/SBIF lamps. The published field width and height are measured where the output has fallen to about half the centre value.
| Distance | Centre (fc) | Centre (lx) | Field width × height |
|---|---|---|---|
| 10 ft | 210 | 2,260 | 14 × 15 ft |
| 15 ft | 95 | 1,023 | 21 × 22 ft |
| 20 ft | 55 | 592 | 28 × 29 ft |
| 25 ft | 35 | 377 | 35 × 36 ft |
Photometric & exposure calculator
Estimate centre-beam illumination and the corresponding camera aperture from this fixture’s published measurements.
Estimated output
Select a configuration to calculate.
Manufacturer readings are for the stated optic, colour setting and full output, measured at the beam centre. Values between measured distances are interpolated. Point-source values outside those distances are approximate inverse-square estimates; large sources cannot be reliably extrapolated and are limited to their measured range. Exposure uses frame rate, shutter angle, ISO and the selected incident-meter calibration. Only the optics and diffusion explicitly listed in the measurement are included; additional modifiers, bounce, beam edges, ambient light, ND filters and camera exposure-index differences are not accounted for. Confirm critical exposures on set with a meter. Photometric source
Power and controls
Each 1 kW lamp draws roughly 8.3 A at 120 V. The six-circuit Socapex lets a suitable dimmer package control lamp positions independently. Mole also lists adapters that group the circuits. Its separate Type 20133 is the Bates version of the Coop.
Modifiers and mounting
Mole lists the Type 20111 safety/filter frame for the rectangular opening. Check that it fits the aluminium frame holder. The four supplied corner chains meet at a ring above the head.
Comparable fixture
The 4 kW Super-Softlite also puts reflected light onto the subject, but its hood fits a yoke. The Coop’s rectangular opening faces down from a four-point chain assembly. 4 kW Super-Softlite.
For a six-lamp overhead using PAR64 globes, see the Type 7251 MaxiCoop.
Field coverage
B&H’s Type 20165 description identifies the silver-bowl lamp and the reflector coating as the combination responsible for the head’s nominal 3,200 K output. B&H Type 20165 listing.
Rental and used-fixture checks
Inspect the reflector coating for repairs or discolouration and confirm the six globes are the same type. Different lamps in the same reflector can produce an uneven field or a colour mismatch. Verify the Type 20165 connector on the actual head.
Documentation
- Manufacturer’s fixture specifications and document listing
- Read the original two-page lamp and output sheet
- Mole-Richardson equipment catalogue, overhead fixtures
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