This model has been discontinued. Please see our current models.
Digitarium Alpha 2 Plus Portable Transit Case Digitarium Alpha 2 lens remote control


Maximum Dome Diameter
Approximately 56 feet/17 meters. Brightness is the main issue, since the larger the dome, the larger the surface area the light from the projector must cover.
768 pixels across a diameter
Field of view
180 degrees, full sky.
Pixels per degree of sky
4.3 average
Angle of Projection
175 degrees
Base Projector Brightness
6500 Lumens with both lamps and a non-fisheye lens (Provided for comparison purposes with other systems. Actual brightness with a fisheye lens is significantly less due to not projecting the whole video rectangle and differing lens properties.)
Contrast Ratio
Approximately 1200:1
Lamp life
2000 hours
The projector has two lamps which can be used one at a time, or both together for the brightest projection.
Image Quality
Improved sharpness and less violet color separation than in the Digitarium Alpha 2.
Internal Storage
1 TB standard.
North America: 120VAC, 50/60Hz, 1020 Watts
Elsewhere: 220-240VAC, 50/60Hz, 1000 Watts
FCC Class A, CE class A (RoHS compliant)
Projector features
Dual lamp, automatic lamp failover or relay options, direct power off (fans properly cool down lamps even if the power is cut off), dust filters, sealed optical block, shutter, LAN control and reporting
System: 19.5 x 16.5 x 25 inches for storage (50 x 42 x 64 cm),
19.5 x 16.5 x 35 inches in use (50 x 42 x 89 cm)
Transit case: 39 x 25 x 22 inches (99 x 64 x 56 cm)
System: 75 pounds (34 kg)
Transit case: 47.6 pounds (21.6 kg)
Total: 123 pounds (56 kg)

Product photos may differ slightly from actual models.