Optics and strobe

The native camera mount is C-mount but adapters to accommodate Nikon F-mount, Pentax K-mount, Minolta MD-mount and others are available. CS-mount optics cannot be used due to its shorter back focal lengths compared to the C-mount. Contact Qualisys for available lens options that fit a specific Oqus camera series.

How to adjust aperture and focus

All optics available to the Oqus camera have adjustable aperture and focus. In the standard camera the optics is easily accessible by turning the strobe part counter-clockwise. After adjusting aperture/focus the opening is closed by turning the strobe clockwise. In the IP-classified version the locking screws on the side must be loosened and the strobe unit pulled out.

How to change strobe unit

Follow this procedure to change the strobe unit.

1. Make sure the power is turned off and the strobe is in its closed position.

2. Remove the strobe unit.

   1. On a standard housing Oqus, turn the strobe counter-clockwise, placing it in the completely open position. Now, find the exit track and turn the strobe so that clicks in to the exit track. Pull the strobe carefully out of the housing.

   2. On an IP-classified housing, loosen the three locking screws on the side and pull out the strobe carefully. The gasket might make it difficult to pull the strobe out. Turning it side-to-side while pulling helps .

3. Disconnect the strobe cable. There is either a connector on the cable or three strobe connectors on the strobe unit. Always pull the connectors, not the cable!

4. Attach the strobe cable to the new strobe. For the connectors on the strobe unit make sure the red cable is attached to the pin marked '+' and that the black cable is attached to the pin marked '-'.

5. Re-attach the strobe unit

   1. On a standard housing Oqus, insert the strobe with the connectors facing down and the opening aligning with the opening on the camera. Align the tracks in the strobe unit with the thrust screws on the camera housing and simply push the strobe in.

   2. On an IP-classified housing, insert the strobe with the connectors to the left and align the holes on the side of the flash with the locking screws on the side of the camera housing. Then tighten the locking screws.

How to change lens

All lenses on the Oqus cameras can be change by the user by following the steps below.

1. Remove the strobe unit.

2. Unscrew or dismount the lens and replace with the new lens.

3. Re-attach the strobe unit.