- A
varifocal lens is a
camera lens with
variable focal length in
which focus changes as
focal length (and magnification) changes, as
compared to a parfocal...
-
overall focal length of the lens.
Lenses of this kind are now
called varifocal lenses,
since when the
focal length is changed, the
position of the focal...
- non-issue levels.
These displays include varifocal, multifocal, holographic, pin-mirror and
light field displays.
Varifocal displays are a
concept explored mainly...
- are also
known as
multifocal lenses,
progressive addition lenses (PAL),
varifocal lenses,
progressive power lenses,
graduated prescription lenses, or progressive...
-
classified as fixed,
varifocal, or pan–tilt–zoom (PTZ camera).
Fixed cameras feature an
immobile perspective on the subject,
whereas varifocal cameras have the...
- macro, the 28-210mm f/4.0~5.6 and the f/3.8~5.6
varifocal zoom, and the 28-85mm f/2.8~3.8
varifocal macro zoom
lenses were
praised in
contemporary reviews...
-
adapted to the
adapter will
function in MF only.
Whether it is
single or
varifocal depends on the
optical characteristic of the lens. **Although the adapter...
- use of
optical compensation. Back
applied for a
patent in 1946 for a "
Varifocal lens for cameras",
which described the
theory of its operation, using...
- lenses,
particularly in the case of fixed-lens cameras, are
actually varifocal lenses,
which gives lens
designers more
flexibility in
optical design...
-
Retrieved 2020-06-18. "Facebook may have
acquired Lemnis Technologies for its
varifocal tech". TweakTown. 2020-09-22.
Retrieved 2021-02-08. Rodriguez, Salvador...
