FLIR LEPTON® Engineering Datasheet 
 
The information contained herein does not contain technology as defined by the EAR, 15 CFR 772, is publicly available, 
and therefore, not subject to EAR.  NSR (6/14/2018). 
Information on this page is subject to change without notice. 
Lepton Engineering Datasheet, Document Number: 500-0659-00-09 Rev: 203
 
9 
1.5  Key Specifications 
Table 1- Key Specifications 
All numbers are nominal unless tolerances are specified. 
Scene Dynamic range
3
 - 
High gain (Low gain)
 
-10 °C to +140 °C 
(-10°C to 450°C) 
-10 °C to +140 °C 
(-10°C to 400°C) 
Uncooled VOx microbolometer 
Longwave infrared, 8 μm to 14 μm 
Automatic. Output image independent of camera 
temperature. 
 Scene Dynamic Range is specified at room temperature and may vary over ambient temperature. It is typically somewhat 
reduced at lower operating temperature. 
 Lepton 1.5, 1.6, 2.0, 2.5 stream video at 26Hz with every 3 frames repeated (effectively 8.7Hz). Lepton 3.0 and 3.5 stream 
segments of the images with effectively full frames at 8.7Hz. In this document, when referring to number of frames the 
frame rate 26Hz is understood.