ETC Source Four Zoom Luminaire 25-50° Black
With Source Four Zoom you only need one fixture for a variety of field angles. Plus, Source Four Zoom makes it easy: ETC's patented one-handed zoom operation makes adjustments quick, simple and safe. Technicians can focus with one hand and hold the ladder with the other. And the lens-tube door provides quick and easy access when you want to clean the lens assembly (tool-free!). But the best part is that Source Four Zoom has all the advantages of the revolutionary fixed-focus Source Four: bright, even field, cool beam, and amazing efficiency. The patented dichroic mirror means shutters and accessories stay cool, and drop-in accessories are interchangeable with fixed-focus Source Fours. Rated up to 750W, Source Four Zoom gives you Source Four's crisp optics for excellent imaging and field quality.

Main Features
- Rated up to 750W
- 25º-50º Zoom ranges
- Super-efficient HPL lamp
- Faceted dichroic reflector removes 90% of IR heat from beam
- One-handed zoom operation
- Positive zoom lock
Product Features
- Rated up to 750W
- 25º-50º Zoom ranges
- Super-efficient HPL lamp
- Faceted dichroic reflector removes 90% of IR heat from beam
- One-handed zoom operation
- Positive zoom lock
- Field angle and focus scale markings
- Rotating barrel ± 25º
- Three-plane stainless-steel shutter blade assembly
- Tool free lamp adjustment
- Easy access lens cleaning
- Insulated rear handle
- Rugged die-cast and extruded aluminium construction
- Supports ETC Dimmer Doubling
Product Specifications
Physical
- Die cast and extruded aluminium construction
- One-handed focus mechanism with positive lock
- Rotating shutter assembly ±25°
- Stainless steel shutters in a tri-plane assembly
- Lens tube door provides easy access for lens cleaning
- Positive locking double-clutch yoke
- Scale markings for field angle and focus settings
- Integral die cast colour frame / accessory holders and top mounted retainer
- Thermally insulated handles and knobs
- Steel yoke with two mounting positions
- Slot for glass or stainless steel gobos
- Slot with sliding cover for motorised gobo devices or optional iris
- Integrated safety cable support
Electrical
- 230-240V, 50Hz
- High temperature 3–conductor cable in a silicon rubber outer sleeve
- CE approved
Lamp
- 750W maximum
- HPL — compact tungsten filament lamp
- Patented filament geometry makes for extremely efficient light collection and transmission
- Integral die cast aluminium heat sink lamp base
Optical
- The 15°–30° variant has two bi–convex lenses
- The 25°–50° uses a plano-convex front lens with a bi-convex rear lens
- Lenses have anti-reflective coating
- Faceted reflector with dichroic coating
- 95% of visible light transmitted through the optical train
- 90% of infrared radiation (heat) passes through the reflector
- Reflector and lenses secured with anti-vibration shock mounts
- Low gate and beam temperature, shutters will not warp or distort
- Tool free lamp centring (X/Y) and peak/flat (Z) adjustment knobs
- Positive locking X, Y and Z adjustments, unaffected by relamping