Assertion: lens's aberration | /r/CreatedBy | central obstruction
Facets:
value: from the secondary mirror
type: OTHER
Source sentences:
text: This makes them much shorter, lighter, and cheaper than an all refractive lens, but at the cost of some optical compromises due to aberrations caused by the central obstruction from the secondary mirror.
text: This makes them much shorter, lighter, and cheaper than an all refractive lens, but at the cost of some optical compromises due to aberrations caused by the central obstruction from the secondary mirror.