Panasonic AG-UX90NTSC UX Series Tech Brief LEICA Dicomar Lens Explained - Page 4

Wide Angle

Get Panasonic AG-UX90NTSC PDF manuals and user guides View all Panasonic AG-UX90NTSC manuals
Add to My Manuals
Save this manual to your list of manuals

Page 4 highlights

in focus caused by the shallow depth of field of the large sensor; a subject moving closer to (or further from) the lens can be tracked far more effectively with the new Micro Drive Focus Unit. Just as a high-resolution sensor renders crisper images, the high precision of the Micro Drive Focus Unit allows it to render faster and more stable autofocus. Compared to previous cameras, the level of precision of the Micro Drive Focus Unit's movements, and the speed at which it can make those movements, make autofocus in 4K not only possible but practical. Now, autofocus will never be perfect, but on the UX180 and UX90 it is faster and more precise than it was on previous cameras. And, like the Optical Image Stabilization, the focus unit is also programmable. You can adjust its parameters to provide the type of focus response you expect to need for your shooting situation. For example: if you're filming a sit-down interview, it's likely that the person will not be moving much; as such, you can program the autofocus to respond gently and slowly, which would minimize the appearance of "focus hunting" that causes so many shooters to curse autofocus. On the other hand, if you're shooting a quickly-changing scene (such as a football game) you might want the autofocus to strictly track the current object and to respond at maximum speed. You can adjust the autofocus speed and sensitivity to make it respond quickly to little changes, or have it respond more slowly and require bigger changes, depending on how you expect the scene to play out. Furthermore, you can instruct the autofocus system as to how much area you'd like it to evaluate for focus; you can restrict it to evaluating only a small box in the center of the screen (for tight focus tracking), or you can widen that box to encompass a large swath of the screen. Finally, you can also enable touchscreen focus so that the autofocus system will focus on exactly the area of the screen you want it to. This programmability is made possible by the high-speed, highlysensitive Micro Drive Focus Unit, which provides the sensitivity and the quick response necessary to enable high-speed tracking focus. Wide Angle One of the most important developments on the AG-UX90 and AG-UX180 is the expansion of the wide end of the zoom range. Veteran shooters are well aware that it's easy to get a lot of telephoto, but what you really need is more on the wide end. Shooting in cramped quarters or small rooms, it's frequently been difficult to frame up the shot and include all the people and scenery that you'd like. And there's only so far you can back up, when in a small room! Panasonic has responded by giving the UX90 and UX180 the widest wide angle field of view of any professional handheld camcorder. Typical handheld camcorder have a wide-angle field of view that is approximately the equivalent of using about a 30mm lens on a full-frame 35mm stills camera. Sometimes they'd be a little wider (like 29mm), sometimes a little tighter (a popular handheld ENG camcorder from a com- 5

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
in focus caused by the shallow depth of field of the large sensor; a subject moving closer to (or
further from) the lens can be tracked far more effectively with the new Micro Drive Focus Unit.
Just as a high-resolution sensor renders crisper images,
the high precision of the Micro Drive Focus Unit allows
it to render faster and more stable autofocus.
Compared
to previous cameras, the level of precision of the Micro
Drive Focus Unit’s movements, and the speed at which
it can make those movements, make autofocus in 4K not
only possible but practical.
Now, autofocus will never be perfect, but on the UX180 and UX90 it is faster and more precise
than it was on previous cameras.
And, like the Optical Image Stabilization, the focus unit is
also programmable.
You can adjust its parameters to provide the type of focus response you
expect to need for your shooting situation.
For example: if you’re filming a sit-down interview,
it’s likely that the person will not be moving much; as such, you can program the autofocus to
respond gently and slowly, which would minimize the appearance of “focus hunting” that causes
so many shooters to curse autofocus.
On the other hand, if you’re shooting a quickly-changing
scene (such as a football game) you might want the autofocus to strictly track the current object
and to respond at maximum speed.
You can adjust the autofocus speed and sensitivity to make
it respond quickly to little changes, or have it respond more slowly and require bigger changes,
depending on how you expect the scene to play out.
Furthermore, you can instruct the autofocus system as to how much area you’d like it to evaluate
for focus; you can restrict it to evaluating only a small box in the center of the screen (for tight
focus tracking), or you can widen that box to encompass a large swath of the screen.
Finally,
you can also enable touchscreen focus so that the autofocus system will focus on exactly the area
of the screen you want it to.
°is programmability is made possible by the high-speed, highly-
sensitive Micro Drive Focus Unit, which provides the sensitivity and the quick response neces-
sary to enable high-speed tracking focus.
Wide Angle
One of the most important developments on the AG-UX90 and AG-UX180 is the expansion of
the wide end of the zoom range.
Veteran shooters are well aware that it’s easy to get a lot of tele-
photo, but what you really need is more on the wide end.
Shooting in cramped quarters or small
rooms, it’s frequently been difficult to frame up the shot and include all the people and scenery
that you’d like.
And there’s only so far you can back up, when in a small room!
Panasonic has
responded by giving the UX90 and UX180 the widest wide angle field of view of any profession-
al handheld camcorder.
Typical handheld camcorder have a wide-angle field of view that is approximately the equivalent
of using about a 30mm lens on a full-frame 35mm stills camera.
Sometimes they’d be a little
wider (like 29mm), sometimes a little tighter (a popular handheld ENG camcorder from a com-
5