m series is the 90-degree central column mechanism, which means you can position your camera in a horizontal position for table-top or overhead shots. would any body know what does the (empty trash securely) mean.. as for whether it’s worth it, that’s harder to gauge. that's why the price tag is up there," he said. many, many people have told me at this point, “put a dragon on your cover, your sales will increase.” why? please let us know if you have an special requirements. 