Projector Lens & Throw Ratio Calculator

Calculate throw ratio, find compatible SMX large venue projector lenses, or estimate projection distance for 10,000–25,000 lumen laser projectors.

Find the Right Projector Lens

Enter the required image width and lens-to-screen distance.

Width and distance must use the same unit.

Calculate Projection Distance

Choose a lens and enter the required image width to calculate the approximate installation distance range.

How to Calculate Projector Throw Ratio

Throw Ratio = Lens-to-Screen Distance ÷ Image Width

Example: if the projector is installed 20 meters from a 10-meter-wide image, the required throw ratio is 2.00:1.

Projection Distance = Image Width × Throw Ratio

The calculator is intended for initial optical planning. Final installation should also consider lens shift, zoom position, mounting tolerance, projector model and actual site conditions.

SMX Large Venue Lens Range

Platform Lens Model Throw Ratio Zoom Operation
10K / 12K / 15K OL-MX50SLM 0.60–0.75:1 1.3× Motorized
10K / 12K / 15K OL-MX40ZLM 0.79–1.11:1 1.4× Motorized
10K / 12K / 15K OL-MX41ZLM 1.30–3.02:1 2.3× Motorized
10K / 12K / 15K OL-MX13ZL 1.46–2.95:1 2.0× Manual
10K / 12K / 15K OL-MX43ZLM 2.99–5.93:1 2.0× Motorized
10K / 12K / 15K OL-MX15ZL 4.59–7.02:1 1.52× Manual
20K / 22K / 25K MX-EG05ZLM 0.53–0.65:1 1.23× Motorized
20K / 22K / 25K MX-EG06ZLM 0.65–0.87:1 1.34× Motorized
20K / 22K / 25K MX-EG08ZLM 0.86–1.25:1 1.45× Motorized
20K / 22K / 25K MX-EG12ZLM 1.24–2.01:1 1.62× Motorized
20K / 22K / 25K MX-EG20ZL 1.98–3.95:1 1.99× Motorized
20K / 22K / 25K MX-EG39ZLM 3.95–7.51:1 1.9× Motorized

Need Help Choosing a Projector and Lens?

Send SMX your screen width, screen height, projector-to-screen distance, installation position and application. We can help evaluate the appropriate projector brightness and lens combination.

Contact SMX for Lens Selection →
Tell Us Your Project Requirements?

Get A Solution in 12 Hours.

✔ Fast Response          ✔ Professional Advice          ✔ Competitive Price 
​​​​​​​
Contact us

Our Products

Quick Links

Contact Us

Tel: 0086 189 2380 1593
Add: Hangcheng Industrial Area, Qianjin 2nd Road, Xixiang Town, Baoan District, Shenzhen City, Guangdong, China
Copyright © 2026 SHENZHEN SMX DISPLAY TECHNOLOGY CO., LIMITED