Key Features Of Hxc-D70; Digital Extender - Sony HDC-25 Series Technical Information

Technical Information: Sony HD System Cameras
Picture 38: Dimensions of HXC-D70 camera head

5.4. Key Features of HXC-D70

5.4.1. Digital Extender

The extender function became famous by the lens manufacturers who included a 2x
extender into their lenses to double the focal lengths.
As a drawback, the weight of the lens was increased and the sensitivity was reduced
by 50%. Finally, a 2x extender has always been quite expensive.
Due to the above mentioned drawbacks, Sony has integrated a digital 2x extender
function into the HXC-D70 camera. This function does allow to double the focal
length of the lens (same as the lens extender), but does not increase weight, does
not have any impact on the sensitivity and, most important, comes free of charge
with the camera. The only drawback is the reduction in resolution. However, if the
camera is used for SDTV productions, the loss in resolution is almost invisible.
5.4.2. Variety of Gamma Curves
Like the big sister cameras, HXC-D70 is equipped with a wide variety of factory pre-
installed gamma curves. Thus, the user can match the look of the picture exactly to
the needs of the individual production, be it for TV, drama, movie or commercials.
The desired gamma curve is selectable from the camera menu:
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