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AG-HPX502
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Pre-shooting setup
Pre-shooting setup (1)
(*The contents of this section are intended for users who are not accustomed to working with professional video cameras.)
The camera design of the AG-HPX502 is a chassis design suitable for use by broadcasting professionals, and it may
seem difficult to use for those accustomed to using the AG-HVX202. However, once an understanding of the essentials
of setup and operation has been gained, shooting becomes easy for any user, including AG-HVX202 users.
Lens setup, battery setup, audio setup, etc.
Setup specifications for the professional-quality video camera
Lens setup
As the lens mount of the AG-HPX502 is a "B4 mount," the type generally found on video cameras for professional
or broadcasting use, a wide variety of professional-quality lenses can be used. However, in order to obtain the
benefits of the AG-HPX502's unique Chromatic Aberration Compensation (CAC) function and get the best color
results, use of one of the maker-endorsed digital HD lenses (shown below) is recommended.
Canon (4 varieties)
KJ10ex4.5B IRSD PS12
KJ16ex7.7B IRSD PS12
KJ16ex7.7B KRSD PS12
KJ21ex7.6B IRSD PS12
*The above list shows compatible lens varieties as of May, 2007. The range of compatible lenses is expected to grow in the future.
*2/3-inch mount-compatible HD cine-lenses such as Carl Zwiss Digiprimes may also be attached.
*Note) It may be possible to use some high-performance SD lenses, but when using lenses other than those endorsed by the maker,
please be aware that there is a risk of adverse effects such as vignetting (reduction of the image periphery) or color bleeding.
Chromatic Aberration Compensation (CAC) function
There is a reality when it comes to inexpensive HD lenses, and that is, Chroma aberrations are an inescapable reality with
all lenses. Compensation techniques employed in high end lenses cannot be afforded in lower cost lenses and
consequently the magnitude of their aberration will be slightly higher. Recognizing the importance of cost-effective
camcorders and lenses, Panasonic Engineering and the two leading lens manufacturers, Canon and Fujinon, have
collaborated in a technology called Chromatic Aberration Compensation. The dynamic of each lens is recognized by the
camera and an algorithm is applied to the video signal to dynamically correct the aberrations before it is recorded. This
means that the circumjacent (areas around the periphery) resolve the majority of the issue. Sounds like magic, but it is
quite an amazing function. It does come at a small increase in price over the least expensive HD lenses but it is worth
every penny. Take a look at the simulated pictures below. The reason they are simulated is that you cannot turn the
function on or off with the same lens so these
pictures are taken with different lenses one that
has the capability and one that does not. If the
camera sees the ability to have a handshake with
the lens, it automatically does a lookup on the
CAC table and sets the correction in motion.
Things to keep in mind when using a 35mm film lens adapter with the AG-HPX502
*When shooting movies or commercials with a 35mm film camera lens, it is possible to shoot using a lens
adapter, but please be sure to use an adapter for a 2/3-inch lens.
(For example, when using a P + S Technik image converter, use a pro35 which is compatible with a B4 mount,
rather than a mini35 such as is used with the AG-HVX202.)
*Also, in such a case, depending on the equipment, there is a possibility that the image will be recorded upside
down. If this is occurring, one can invert the LCD monitor while shooting, but it is impossible to invert the
viewfinder or the HD-SDI output. It is necessary to flip the image using a nonlinear editing system.
Fujinon (2 varieties)
XA17x7.6BERM-M58B
XA17x7.6BRM-M58B
Typical scene where the aberration would be a problem
A close-up of the problem
The CAC working
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