JVC GY-HM600/620 Camera

Getting the Focus Right


Every shot you get must be properly focused, which is crucial in any professional production. Soft focus shots, unless used for artistic effect, will not be accepted under professional standards.

The focus ring is the largest control ring on the camera, immediately behind the end of the lens.

To focus a telephoto lens, you must first calibrate it

Make sure the lens is set to manual focus first – switch the FOCUS switch from AUTO to MANU.  Make sure that the MF icon is displayed in the monitor.

Zoom in all the way on your subject and focus by turning the focus ring on the lens until the image looks sharp. Zoom out and compose the shot to the desired framing. Each time you move the camera, it will become necessary to calibrate the telephoto lens.

 

Adjusting the FOCUS Automatically

Set the FOCUS switch to AUTO. The AF icon will now appear in the monitor. 

CAUTION: In most situations, using the Automatic Focus is not recommended simply because the camera might shift the focus during recording, and this could ruin the shot especially if it’s an interview.


Setting Auto Focus Temporarily

While in manual focus mode, press and hold the PUSH AUTO button, which will put the camera focus temporarily into automatic focus. Upon releasing the button, the camera will return to manual focus mode. 

Getting the focus right means having to judge the focus properly. You might think you can judge the focus using only the LCD monitor, but it’s actually impossible to rely on this 720p display to get true focus. That’s because the LCD Monitor doesn’t have enough pixels to render the image sharply. Focus errors are more obvious in high-definition, but fortunately there are ways to get the best focus possible. 

Focus Assist

Press the F. ASSIST/1 button to enable Peaking, which draws outlines (in blue or red) around objects that are in sharp focus. Peaking works during recording, but the outline is not recorded into the image. 

NOTE: the “1” in F. ASSIST/1 denotes USER 1, which is a button that can be assigned to other functions via the MENU. 



When F. ASSIST/1 is selected, turning the focus ring will display the focussed areas in colour.








Expanded Focus

This type of focus assist magnifies the image to show you more detail than in the full frame view.

Press the C. REVIEW/7 button (located just behind the zoom rocker. This button has been assigned to provide the Expanded Focus Assist.




When EXPANDED FOCUS is selected, the centre portion of the picture is magnified and the word EXPANDED (in yellow) is displayed in the monitor.

Pressing the C. REVIEW/7 button again will restore the image back to normal viewing.

NOTE: The magnified area is not recorded into the image itself. 




Viewfinder Eyepiece

You can optimise the focus better if you can see the image clearly without interference from the lighting in the environment. Make sure to adjust the eyepiece corrector (dioptre) to your eyesight before you start focussing the lens.