ETC S4 25°-50° Zoom Profile

S p e c i f i c a t i o n s

PHYSICAL
• Rugged, die cast and extruded aluminium construction
• Patented one-handed focus mechanism with positive lock
• Rotating shutter assembly ±25˚
• 20 gauge stainless steel shutters in a tri-plane assembly
• Lens tube door provides easy access for lens cleaning
• Scale markings for field angle and focus settings
• Thermally insulated rear handle
• High impact, thermally insulated knobs and shutter handles
• Integral die cast color frame holder with two accessory slots, and a top mounted, color frame retainer
• Steel yoke with two mounting positions
• Positive locking double-clutch yoke
• Slot for glass or stainless steel patterns
• Wide accessory slot with sliding cover for motorized pattern devices or optional iris

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/ xenon filled quartz envelope (see table for suitable lamp types)
• Patented filament geometry makes for extremely efficient light collection and transmission
• Integral die cast aluminium heat sink lamp base

OPTICAL
• Re-optimized optical system for improved photometric performance and field uniformity
• Two bi-convex lenses
• 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 have anti-reflective coatings
• Lenses secured with anti-vibration shock mounts
• Low gate and beam temperature, shutters will not warp or distort
• Tool free, positive locking X, Y and Z lamp centering adjustments, unaffected by relamping