Manufacturing precision optics for fast,
ground-based inventories of forest
biomass & volume.

GLOBALLY APPLICABLE WEDGE PRISMS

Our amber tinted prisms (1-10 BAFs) heighten contrast in low-light conditions in all forest types.
Our clear prism size range of 1-24 BAF enables “big BAF” height measure sweeps
at 4x diameter measure sweeps of 1-6 m2/ha.
The big BAF method is the world’s most time-efficient method to measure forest
biomass and volume without losses in accuracy or precision*.

MODERN PRISM TUBES

PAT. PEND

OUR research

OUR CONSULTANCY CLIENTS

OUR RETAIL CLIENTS

*Marshall DD, Iles K, and Bell JF. 2004. Using a large-angle gauge to select trees for measurement in variable plot sampling. Can J For Res 34:840–845.

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