Important Information on Richard Gale Optics' APOGEE Lenses

Correct installation onto camera

The 'set screw' on the side of the PL Mount of the lens indicates the correct rotational position of the lens when mounting into the PL Port of your camera. This set screw should be lined up with the camera PL port alignment pin.  Naturally you can rotate the lens in one of any 4 positions depending on your AC position.

PL Adaptor Usage

Never attempt to use any of the lenses until the PL adaptor is fitted to the camera!

The PL adaptor should be fitted to the camera first, then and only then should lenses be installed into the adaptor. First 'convert' your camera to PL with the adaptor, then fit and remove lenses in the same way you would install lenses into a native ARRI PL mount camera.

When changing/removing lenses, remove the lens from the adaptor FIRST, before finally removing the adaptor from the camera!

Never attempt to fit or remove the PL adaptor to the lens itself. The rotational force required to lock and unlock the PL clasp on the adaptor can cause serious damage to the focus mechanism of the lens. Any damage caused by not adhering to this process is not covered by warranty.


In the event of the adaptor being left on the lens by accident, first fit the adaptor and lens back onto a camera, then unlock the lens from the adaptor. Any attempt to fit or remove the adaptor from the lens while not installed on a camera will cause serious damage to the lens focus mechanism. Attempting to lock or unlock the adaptor from the lens while not fitted to a camera body means you are will be applying too much rotational stress to the focus mechanism of the lens.

PL Mount Fitment Issues

Our PL mounts are designed and manufactured to meet the ARRI specification and as long as your camera / adaptor has a PL port that meets the ARRI standard our lenses will fit without issue.

'Mechanical Problems'

Recently we have had a number of users reporting mechanical issues such as 'focus shift', 'wobble', 'tight focus action', etc. All lenses have a minor rotational play on the PL mount/ Focus mechanism. This is normal and unfortunately not something that can be completely removed. - It's simply a result of the type of focus mechanism that is employed. Rest assured, the slight play will not show on the captured imagery and has no effect on focus since it's rotational rather than back and forward.  We replace a great deal of the mechanical components and use the most advanced lubricants in order to provide the best possible focus action on our lenses. However please do not expect the same mechanical integrity found on modern cinema primes.

Remote Follow Focus Use

Extreme care should be taken when using these lenses with very high torque follow focus motors. Modern focus systems are capable of enormous amounts of rotational torque which in some cases could cause damage to delicate internal focus mechanism components. Be sure to put in place working processes that ensure focus motors correctly sense both ends of the focus action to prevent them from applying their full torque beyond the permitted focus throw of the lenses. As with all speciality / vintage optics a degree of care and attention is required with operating this equipment.  Damage caused by careless use is not covered by the warranty.

15MM Rail Support

Due to the front heavy design of these lenses in some cases it is beneficial to use the included lens support. The lenses can be used without the support but in certain instances the support can help with focus action - particularly with the 28mm lens and with low powered follow focus motors.

Fit the lens then position the rail support onto your 15mm rails so the widest part of the lens (95mm front) rests on the curved face of the support. The felt pad will allow the lens to freely slide without damage and will assist in smooth focus pulling when critical marks need to be hit.

If you need clearance for mattebox mating to the front 95mm diameter, fit the support further down the lens body and adjust the height to suit. The felt pad on the surface will allow free movement over the support without damage or sticking.

Article by Richard Gale Optics UK