Mirror Lock-up OperationWith the RZ 67 PRO II, it is possible to lockthe mirror in the up position beforehand, andat the desired instant release the shutterwithout the usual accompanying mirrormovement.Referred to as, "mirror lock-up operation," thistechnique is extremely valuable when eventhe slightest mirror vibration must beeliminated. When the mirror rises, it usuallycauses vibrations the very instant before theshutter opens, creating a possible loss ofsharpness when working at high magnifica-tions or with long shutter speeds. Conse-quently, mirror lock-up operation is especiallyuseful when engaging in close-upphotography, using telephoto lenses, andmaking long ("slow") exposures. Yet anotherapplication is when trying to catch the peak ofaction. By raising the mirror beforehand, theshutter can instantly be released, totallyeliminating the time lag usually presentbetween the time the mirror completes itsupward swing and the time the shutter opens.1. After screwing a cable release firmly intothe Mirror Lock-up Socket of the lens, thesocket will elevate slightly and the camera willbe ready for mirror lock-up operation.2. Press the Cocking Lever as far as it will go.Step 2 may either follow or precede step 1.3. Depress the Shutter Release Button andthe mirror will rise, but the shutter will remainclosed.4. Press the plunger of the cable release andthe shutter will operate.33• When you no longer need mirror lock-upoperation, remove the cable release.Upon removing the release, the MirrorLockup Socket will retract and the camerawill return to normal shutter operation.If you complete step 3 above, but removethe cable release without making anexposure (step 4), the shutter will bereleased as soon as the cable release isremoved.Even when using mirror lock-up operation,everytime the shutter is cocked, the mirror isrelowered. Therefore, it is possible to checkthe viewfinder before each frame is exposed.A double cable release is both an availableand convenient accessory. Since one end ofthe release screws into the Shutter ReleaseButton and the other end into the MirrorLock-up Socket, it is possible to use thesame release to raise the mirror and laterrelease the shutter.The double cable release is particularlyvaluable when using B exposures with mirrorlock-up operation. After pressing the shutterrelease button to raise the mirror, detach thecable release from the mirror lock-up socket.At that instant the shutter will be released.-Continued on next page-