Connecting Devices

Adjusting Flange Back

Flange back adjustment may be required to correct a focal distance error generated due to attachment thickness of the installed lens.

Normally you do not have to make any adjustment, however, you can adjust focus of the installed lens with auto iris, when it provides images out of focus at the maximum telephoto position. To adjust the flange back, follow the steps below.

1Loosen the lock screw. (M2: +)

2Set the zoom lens to the

maximum telephoto position

and then adjust focus by

3Set the zoom lens to the

Note: The flange back lock screw is tightened

 

 

 

maximum wide-angle position

completely when its tip hits the invisible

 

bottom, even though the screw head

 

and then adjust focus by using

 

may seem still up in the air. Do not screw

 

the flange back adjusting lever.

down any further beyond this normal

 

 

position as illustrated in Fig. 1.

 

 

turning the focus ring of the

lens.

2

4Repeat steps 2 and 3 until the image stays in-focus when changing from a wide-angle position to a telephoto position. When the setting is complete, tighten the flange back lock screw.

Flange back lock screw

Fig. 1

Connection

1

3

4

English 12