Tuesday, February 27, 2007

Aussiemorphic Lens MK3 On Line Instructions

Thank you for purchasing the Aussiemorphic Lens MK3. This prism based 1.33x Horizontal Expansion lens is corrected for Chromatic Aberrations, features anti-reflecting optic coatings and the prism’s surface is finished to a specified commercial optical grade. To allow you an easy step into Constant Image Height projection, all you have to do is fit and align the lens with your projector, scale the image and sit back and enjoy a Deluxe Wide Screen presentation.

The Aussiemorphic Lens MK3


The full on line instruction manual can be found HERE

1. The lens is designed to sit in the light path of your 16:9 projector allowing you to project images as wide as 2.37:1.

2. You must position the projector to provide a Throw Ratio of at least 2.0:1 [or longer if your projector’s lens is recessed] to prevent vignetting of the image.

3. To calculate the TR, measure the width of the Scope screen and times it by 0.75. Then times that by your TR to find the distance from the screen to the projector’s lens.

EG: Scope Screen Width x 0.75 x TR = Mounting Distance

4. The MK3 now has height adjustment to allow easer alignment with the projector. Please ensure that you tighten the thumb screws so the lens does not move.

5. So that you can easily move the lens out of the light path when not required, a simple manual sled is included, however, it is recommended that the lens be left in the light path all the time.

6. It is YOUR responsibility to ensure that the lens is secure and can not move or fall after installation. CAVX and OzTS are not liable for any loss or damage as a result of improper use or installation.

Once aligned, the Aussiemorphic Lens MK3 will optically stretch everything by 1.33x. To view CinemaScope [without black bars top and bottom], you will need to “scale” the image. This involves displaying the image with a vertical stretch of 33.3%.

Many of today’s HD projectors feature the mode 1 and 2 scaling needed for CIH, but a dedicated Video Processor may still be required with some units.

Aligning the Lens.

The lens is designed to give you the optimum performance. You must ensure that your projector is perpendicular to the screen. If the beam appears not to align symmetrically with the edges of the screen, firstly, check that your projector is centred. You may have to twist the lens (either clockwise or anti-clockwise) to trim the light beam to a perfect fit.

If you notice the optical effects of pincushion, you may need to tilt the lens to even the curvature out top to bottom and apply a small amount of zoom to projected image.

To correct for pincushion, tilt the lens up [table top] or down [inverted] depending on how the lens is mounted. This does not remove the pincushion, but rather, creates a more symmetrical effect. The only way to correct for pincushion is to curve the screen, but at long throws like 2.0:1 and above, the amount of pincushion should be small enough to go un-noticed.


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