PANASONIC DVX100 With & without LA-7200G Anamorphic Adapter
The adapter allows for full zoom-through, as shown by these two photos.  Both of these were taken with the DVX100 at maximum telephoto.  The picture on the left is with no additional lenses, the picture on the right is with the anamorphic lens.  All non-anamorphic shots were done in letterbox mode.  Click on the pictures to download a full-size 720x480 high-quality JPG (about 170k).  Click on the words below the pictures to download the original straight-from-the-camera .BMP files (over 1MB each).
BMP without anamorphic
BMP with anamorphic
Here are sample photos of the camera at full wide angle, with & without the anamorphic lens.  Note that the anamorphic appears to induce barrel distortion.
BMP without anamorphic
BMP with anamorphic
These are samples of the Panasonic LA-7208G wide-angle adapter lens.  The wide-angle lens is a .8x magnification, providing a slightly wider field of view.  The images here were taken on an AG-DVC80 camera, in full wide and full telephoto modes.  The adapter is 100% zoom-through.
BMP without wide angle lens
BMP with wide angle lens
BMP without wide angle lens
BMP with wide angle lens
BMP with anamorphic
BMP without anamorphic
These pictures are perhaps the most interesting.  This is a shot WITHOUT the anamorphic lens, but electronically stretched in post to make it anamorphic.  Is the lens worth $880 vs. stretching & rendering?  Compare and decide for yourself.
Compare this picture to the picture with the anamorphic below.  Unfortunately I overexposed the anamorphic shot, so they're not 100% comparable.  Details look about the same between these two shots!  The picture above is the same letterboxed shot on the left, but cropped & stretched to full height (to make it an anamorphic image), attempting to match the field of view and image produced by the anamorphic lens below.
BMP with anamorphic
BMP without anamorphic, stretched by Vegas 4.0b
The pictures below are the major comparison: a full-telephoto (with anamorphic) shot, compared against a non-anamorphic shot that was cropped and stretched by Vegas 4.0b.  Vegas has an incredibly good resizing algorithm, and the results are very competitive with those from the anamorphic lens!