[Disclaimer] I've personally helped to provide input on the design of this particular product along with PhotographyandCinema.com. I find this small item incredibly useful, but please make your decisions based solely on the product functionality and not my personal opinion.
The Common Problem
The Manfrotto 501PL Quick Release plate is compatible across several of Manfrotto's Video Fluid Heads making it highly popular among DSLR Video Shooters. The 501PL (or compatible) quick release plate offers an anti-twist register pin, but the design of DSLR camera bodies are unable to take advantage of this.
An Innovative Solution
For this widely common problem, PhotographyandCinema.com has exclusively designed this special ATP adapter kit that will transform ordinary 501PL plates into an anti-twist plate specifically for popular DSLR cameras or smaller Interchangeable Lens (ILC) Camera bodies. The ATP is designed to 'LOCK' in place above the 501PL plate and adds an anti-twist lip across the camera body.
Using the ATP Plates WILL NOT CHANGE the basic functionality of your 501PL plates when moving from your favorite tripod heads (like 701HDV), favorite monopods (like 561BHDV), and to 501PL quick release adapters. It is designed to enhance the abilities of your 501PL plates when working with DSLR Video cameras.
The ATP Plate is not at all required when working with DSLR Video, but it will help to eliminate the annoyance of cameras shifting over the 501PL. For some that's a small price to pay for peace of mind when working on important projects. Pricing has not yet been announced, but more information about the ATP Plates and a 20% OFF Coupon (when available) can be found at the product page at https://PhotographyandCinema.com.
(Above) Example shown with 5D Mark II, Panasonic GH2, Nikon D600
Now that Manfrotto has released a new and slightly different MVH500AH Video Fluid Head, there's been a few questions about compatibility - especially for those who want to pick up or upgrade to this new video head and have invested in a bunch of QR plates. For a bit more information on the actual video head, check out this earlier article on the MVH500AH (here).
First, Does the Manfrotto quick release plate from the 577 QR Adapter or common 501PL plate fit on the new Manfrotto MVH500AH video fluid head? Secondly, Does the new Manfrotto MVH500AH quick release plate fit on the older 701HDV, 501, 502HD Video Fluid heads? Hopefully the video below answers some of those questions.
So the new MVH500AH seems to accept the 501PL plates or the quick release plates from the 577 adapter (with 501PL) pretty easily, but it will not be compatible with the 504 plates. Also, the MVH500AH quick release plate will not work with the older Manfrotto Video fluid heads such as the 701HDV or the 502HD.
This year at NAB 2013, Manfrotto announced the new MVH500AH Video Fluid Head which sits as an entry level product in their Bridging Technology line of Video heads. The new video head may be the most affordable Video Head that uses actual ball bearings and fluid cartridges to provide smooth pan / tilt operation. One small change i'm excited to see is the ability to drop in the quick release plate (instead of sliding). This makes it easier when working with video rigs instead of leaving additional clearance required for sliding quick release systems.
The common problem with basic Tripod plates (quick release plates) is that you only have one main screw that attaches to the camera. So obviously with a little force, the camera seems to twist around, and sometimes come loose from the QR plate. This is especially more annoying when using a follow focus system and the lens moves away from the gear. If you look carefully under your camera, you'll find a tiny 'alignment' hole that most QR plates don't utilize.
3 screws to fasten the plate and 2 thread to fasten a quick release plate
The Canon 5D Mark II Anti Twist Plate takes advantage of the alignment hole on the camera to make sure it doesn't shift, and then there are two threaded holes that you would use to mount your QR plate. Yes, you would use both threads in your slotted plate which will prevent the plate from shifting also. If you have the need for a firm stance, check out these anti-twist plates via eBay (click here).
Above you see some fine examples from Vimeo member StillMotion about shooting with a particular monopod - the Manfrotto 561BHDV. I share this with you today, because if you've been eyeballing this monopod, it's currently available as a Gold Deal on Amazon (with only a slight $14 dollar discount). You won't see the price difference immediately until you click on the Gold Deal button on the right side of the Amazon product page.