Christie CP4450-RGB vs Panasonic PT-RQ50K

	Christie CP4450-RGB	Panasonic PT-RQ50K
Key differences
White light output	—	50,000 lm ISO (Normal power) · 50,000 lm ANSI (Normal power)
Light source	RGB triple laser	Laser (phosphor)
Fan noise	—	52 dB(A)
Brightness
Rated brightness	—	50,000 lmDerived
White light output	—	50,000 lm ISO (Normal power) · 50,000 lm ANSI (Normal power)
Claimed brightness (non-standard)	Up to 55,000 lm	—
Brightness uniformity	—	90%
Brightness by mode	—	Normal 50,000 lm · Eco 40,000 lm
Eco brightness	—	80%Derived
Display system
Imaging technology	DLP	DLP
Chip / panel diagonal	1.38 in	1.38 in
On-screen resolution	DCI 4K (4096 × 2160)Derived	DCI 4K (4096 × 2160)Derived
Native resolution	DCI 4K (4096 × 2160)	DCI 4K (4096 × 2160)
Native aspect	17:9Derived	17:9Derived
Contrast
Dynamic contrast	—	20,000:1
Colour
Colour gamut	Over BT.2020 95% coverage	About DCI-P3 90%
Light source
Light source	RGB triple laser	Laser (phosphor)
Emitter	RGB triple laser	—
Light engine	—	Laser diodes (Blue LD, Red LD)
Light-source life	Over 50,000 h	Over 24,000 h eco
Life defined as	—	50% brightness
Light output control	—	Continuous
Optics
Vertical lens shift	—	±45%
Horizontal lens shift	—	±16%
Motorised lens shift	—	Yes
Vertical keystone	—	40°
Horizontal keystone	—	40°
Grid warp	—	Yes
Interchangeable lens	Yes	Yes
Inputs & control
HDMI inputs	2 × HDMI 2.0	—
HDMI inputs (count)	2Derived	—
Newest HDMI version	HDMI 2.0Derived	—
Other video inputs	SDI	+ HDBaseT, SDI
Max input resolution	—	DCI 4K
Control ports	—	RS-232
PJLink	—	Class 2
Control-system drivers	—	Crestron, AMX
Smart platform
Ethernet	Yes	Yes
Physical & installation
Dimensions (W × D × H)	—	720 × 1,070 × 445 mm
Colours	—	Black
Orientations	—	360°
Dust filter	—	None
Sealed optical engine	—	Yes
Environment & power
Operating temperature	15–30°C	0–45°C
Operating humidity	20–80%RH	10–80%RH
Altitude	3,000 m	4,200 m
Power draw	Max 5,450 W	Max 4,100 W · Normal 3,970 W · Eco 3,110 W
Standby	—	6 W
Mains input	200–240 V · 50/60 Hz	100–240 V · 50/60 Hz
Noise
Fan noise	—	52 dB(A)
Safety & compliance
Laser class	Class 1	Class 1
Risk group	RG3	RG3
Support & ownership
User manual	—	https://ap.pnd.panasonic.com/sites/default/files/media/document/2026-03/rq50k_manual_en.pdf
In the box
In the box	—	Power cord, Remote, Remote batteries