Optoma ML1050STi 535-Lumen WXGA DLP LED Pico Projector

Small meeting rooms and hidden installs get a bright WXGA image from a very small body with the Optoma ML1050STi, a 535-lumen short-throw LED DLP projector.

It auto-focuses, auto-corrects vertical keystone and adds RS-232 control, and Robertson AV can quote multi-unit orders.

Key Features

• Brightness: 535 ANSI lumens (1,000 on the HK scale)
• WXGA: 1280 x 800, 20,000:1 contrast
• Short throw: 0.8:1 lens; 100 inches from just over a meter
• LED light source: 20,000 hours
• Auto setup: Auto focus and vertical auto keystone
• Built-in player: Office viewer and media player via USB, microSD or Display Share app
• Control: RS-232 through a mini-USB adapter
• Compact: 0.88 lb, 4.41 x 4.84 x 2.24 in

Ideal For

• Small meeting rooms: short throw
• Pop-up presentations: portable
• Hidden installs: RS-232 control

Optoma ML1050STi 535-Lumen WXGA Short-Throw LED DLP Pico Projector Specifications

Optoma ML1050STi technical specifications, grouped by feature

Specification	Details
Picture & Optics
Resolution	WXGA (1280 x 800)
Brightness (HK / ANSI)	1,000 / 535 lumens
Contrast Ratio	20,000:1
Throw Ratio	0.8:1
Projection Distance	33.86 – 67.72 in
Keystone Correction	Vertical +/-40 degrees; auto vertical
Light Source
Light Source	LED, 20,000 hours
Connectivity & Control
Input Lag	16 ms (1080p60 input)
Audio
Speaker	1 x 2 W
Power & Environment
Noise Level	22 dB min; 29 dB max
Power Consumption	23 W min; 67 W max; 0.5 W standby
Physical
Dimensions (W x D x H)	4.41 x 4.84 x 2.24 in
Net Weight	0.88 lb
Additional Features
Display Technology	DLP
Screen Size	50 – 100 in
Focal Length	8.02 mm
Native Offset	100%
Connections	HDMI 1.4b, microSD, USB-A reader, 3.5 mm audio, RS-232 via mini-USB
General
Brand	Optoma
Model	ML1050STi
UPC	796435447441

Specifications are verified against the Optoma manufacturer data sheet (October 2026) and may change without notice. Confirm critical requirements with Optoma before ordering.

What’s in the Box

• Carry bag
• Universal I/O cable
• AC power cord
• Remote control
• CR2032 battery
• Basic user manual
• RS-232 mini-USB adapter

Warranty & Support

Planning a multi-room or multi-site install? Request a quote from Robertson AV for 5 or more units, or call us at 800-919-6548 or email orders@robertsonav.com. Free ground shipping on U.S. orders. Schools, businesses, government agencies and houses of worship: ask us about project and quantity pricing.