Assertion: lens's barrel | /r/CapableOf | reduce heat absorption
Facets:
value: under the sun
type: LOCATION
Source sentences:
text: Larger sized L-lenses, such as the 70–200 mm, 100–400 mm zooms, and longer focal length primes (300 mm+), usually have an off-white barrel to reduce heat absorption under the sun that may otherwise affect the performance of the lens.