The 42550 Source Four 25-50-Degree Ellipsoidal from ETC combines the energy-saving power of the patented HPL lamp with a dichroic reflector and optical-quality lenses. That means your gels, patterns and shutters last longer and your performance space stays cooler.
No other light offers such optical brilliance. Source Four's revolutionary technology gives you a clean white beam for unequaled imaging, crisp pattern projection, and a bright, even field. The EDLT lens tube option for 19º, 26º, 36º and 50º field angles makes the Source Four even better for ultra-crisp, high-contrast gobo projections.
ETC 42550 Source Four Features
- 25-50-degree ellipsoidal
- Rated up to 750W
- Super-efficient HPL lamp
- Faceted dichroic reflector removes 90% of IR heat from beam
- Interchangeable lens tubes
- Rotating barrel ± 25º
- Three-plane stainless-steel shutter blade assembly
- Tool-free lamp adjustment
- Insulated rear handle
- Rugged die-cast aluminum construction
- Supports Dimmer Doubling™ (North America only)
- 42550 Source Four 25-50-Degree Ellipsoidal1
- Physical
- Rugged die cast aluminum construction
- Rotating shutter assembly ±25˚
- 20 gauge stainless steel shutters in a tri-plane assembly
- Interchangeable lens tubes with smooth-running Teflon® guides provide nine user-fit field angle options
- Thermally insulated rear handle
- High impact, thermally insulated knobs and shutter handles
- Two accessory slots and a top mounted, gel frame retainer
- Steel yoke with two mounting positions
- Positive locking single-clutch fixture body
- Slot for glass or stainless steel patterns
- Wide accessory slot with sliding cover for motorized pattern devices or optional iris
- Uses 7.5” color frame
- UL and cUL Listed
- Electrical
- 115-240V, 50/60Hz
- High temperature 3-conductor 36” leads in a glass fiber outer sleeve
- Supports ETC Dimmer Doubling™ technology
- Lamp
- 750W Maximum
- HPL – compact tungsten filament contained in a krypton-filled quartz envelope (see table for suitable lamp types)
- Patented filament geometry makes for extremely efficient light collection and transmission
- Integral die cast aluminum heat sink lamp base
- Optical
- Re-optimized optical system for improved photometric
- performance and field uniformity
- Projector-quality, high contrast dual aspheric lenses
- Superior quality optical glass with advanced AR coatings
- Provides crisp edge definition and high gobo contrast
- Faceted borosilicate reflector with dichroic cold mirror coating removes greater than 90% infrared radiation (heat) and reflects greater than 95% of visible light
- Reflector secured with anti-vibration shock mounts
- Lenses secured with anti-vibration shock mounts
- Tool free, positive locking X, Y and Z lamp centering adjustments, unaffected by relamping
- Beam edge continually adjustable hard-to-soft
- Interchangeable lens barrels permit selection of 5˚, 10˚, 14˚, 19˚, 26˚, 36˚, 50˚, 70˚, and 90˚ field angles as well as 19˚, 26˚, 36˚, and 50˚ EDLT lenses
