Hitachi HV-D30 operation manual Auto Shading, Alc, Slow, Fast

Models: HV-D30

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ξ FLAT

6) KNEE : Knee OFF/ON/AUTO

The on setting provides natural gradation in bright portions. At the auto setting, gradation in bright components is automatically optimized even with scene changes. Knee is fixed to on in the Auto CAM mode.

7) SHADING MODE mode : Auto shading setting

ξ COLOR : Minimize vertical shading in image. Use for general scenes.

ξ LUMINANCE: Equalizes vertical RGB signal levels. Use for special optics such as microscope or inspection devices.

: Equalizes overall image RGB signal levels. Effective for microscope perimeter shading and inspection devices.

If shading is large or random, compensation error increases. In such cases, adjust for uniform lighting.

8) AUTO SHADING

Press R for automatic shading adjustment. See further description on Page 36.

9)AUTO BLACK: Press R for automatic black balance adjustment.

10)FILE SELECT: Select scene file from among 1, 2, 3 and 4.

5.ALC

1)PEAK/AVE : Set auto level control for Peak or Average in 4 steps of 50/50, 25/75, 18/85 or 0/100. At high Average setting, background may be difficult to see in picture bright components. Increasing the Peak setting may render spotlighted components easier to see.

2)OVER RIDE : Auto iris level setting

ALC level setting in range of -128 to 127 (about 2 F stops). Press R and L for respectively higher or lower video level settings. Press both L and R for about 2 seconds to set to 0.

3) SPEED: AGC and AES response speed

ξ

SLOW

: Slow response to scene light variations. Allows a stable image when a

 

 

strong light source, e.g., vehicle headlights, enters the scene.

ξ STANDARD : Normal setting

ξ

FAST

: Quick response to scene light variations. Use where variations are

 

 

sudden, such as when changing a microscope magnification.

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Hitachi HV-D30 operation manual Auto Shading, Alc, Slow, Fast