Mosaic Engineering, Inc.

  • Increase font size
  • Default font size
  • Decrease font size

VAF-D800 Optical Anti-Aliasing Filter: Installation

(See Also: Removal)

The VAF-D800 is easily installed in your camera in just a few seconds.  Before beginning, please note:

Cleaning  If you accidentally touch the filter's coated optical surfaces, fingerprints can be easily wiped away using a just a single drop of alcohol on a piece of soft cotton cloth.  Most alcohol-based lens cleaners can be used as well.  As with any optics, avoid vigorous scrubbing, and be careful not to drag abrasive particles across the surface.

  • Remove the VAF-D800 from its container and protective wrapping, holding it by its corners and edges. If necessary, any dust can be easily removed using a "canned air" duster.
  • The filter is shipped with a small pair of pointed tweezers, which serves as an installation and removal tool, as well as a lint-free protective optical cloth, which can be used to gently clean the filter, or to wrap it for storage.
  • Set the D800 release mode dial to "Mup".  This will allow you to raise the camera's reflex mirror without opening its focal plane shutter - this will help to protect the image sensor while installing the filter.
  • Now, before you begin installing the VAF-D800, have a look inside your camera: Remove the lens and press the shutter release button.  In the "Mup" mode, this will raise the reflex mirror, and keep it raised for 30 seconds.
  • Now look carefully at the underside of the reflex mirror.  You will see five shallow, rectangular depressions along the front edge of the mirror.  The VAF-D800 engages these depressions.
  • 30 seconds after you pressed the shutter release button, the reflex mirror will again lower.
  • Insert the tips of the installation tweezers into the two holes at the bottom of the VAF-D800.  Be sure to insert the tweezers into the FRONT, FLAT SIDE of the filter as shown - and not the rear beveled size of the filter.
  • Notice that the top, FRONT edge of the VAF-D800 has five small protrusions, which mate with the five depressions below the reflex mirror, as shown in the previous image.
  • Always hold the camera vertically while installing or removing the VAF-D800.  This will prevent any possibility of a dropped object falling into the camera and contacting the image sensor.
  • When you're ready to install the filter into the camera, press the shutter release button to raise the reflex mirror for another 30-second interval.
  • Angle the VAF-D800 into the camera.  Guide the five protrusions at the top of the filter, into the five depressions beneath the reflex mirror.
  • Then gently press the bottom of the filter into the camera, to engage it in the groove at the base of the mirror cavity.
  • The VAF-D800 installs easily, with very little force or pressure!  If something doesn't seem right, don't force the filter into the camera - stop and call us for assistance!
  • If the camera times out during installation and lowers the reflex mirror, it's okay to gently pull the filter from the camera and let the reflex mirror fall normally - the camera will not be damaged in this way.
  • When the filter is correctly installed into the D800, its front, flat face will be flat within the camera body, parallel to the lens flange.
  • Look carefully at the bottom edge of the filter - it must engage in the groove at the base of the reflex mirror cavity, fully BEHIND the crescent-shaped cutout just below the mirror cavity.
  • If the filter is not so engaged, gently press it to fully seat it in the groove as shown here.  This prevents the filter from sliding forward within the camera after a lens has been mounted.
  • Now mount a lens, and go and use your D800 to shoot some great aliasing-free video!
  • The VAF-D800 may be left in the camera indefinitely without harm.