Mode

Shutter speed

Application

EVS a)

HDW-730 (59.94I format)/

Improved vertical

(Enhanced

HDW-750: 1/60 sec. (fixed)

resolution. However, the

Vertical

HDW-730 (50I format)/

sensitivity and dynamic

 

range are reduced.

definition

HDW-750P (50I fomrat):

 

System)

1/50 sec. (fixed)

 

 

 

 

a) For an HDW-750P, operating with the 25PsF format, this function is not

 

available.

4

 

Notes

•Whatever the operating mode of the electronic shutter, the sensitivity of the CCD decreases with increasing shutter speed.

•When the automatic iris is used, the iris opens wider and wider as the shutter speed increases, thus reducing the depth of field.

•Under artificial light, particularly fluorescent or mercury lamps, the light intensity may appear to be constant, but the strengths of each of the R, G and B colors are actually changing in synchronization with the frequency of the power supply (“flicker”). Using an electronic shutter under such lighting could make the flicker even worse. Color flicker is particularly likely to happen when the power supply frequency is 60 Hz (with the 59.94I format) or 50 Hz (with the 50I format). However, if the power frequency is 50 Hz (with the 59.94I format) or 60Hz (50I format), setting the shutter speed to 1/100 or 1/60 can reduce this flicker.

•When a bright object is shot in EVS mode or ECS mode in such a manner that it fills the screen, the upper edge of the picture may have poor quality because of an inherent characteristic of CCD. Before using EVS mode or ECS mode, check the shooting conditions.

You can turn on or off the EVS mode on the SW STATUS page of the PAINT menu.

Chapter 4 Adjustments and Settings for Recording 4-13