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As the camera head has a true x CCD block, some HD Broadcasters have cleared this format for conditional use in HD deliverable productions — a great plus point as the format is really great value, although the limited bandwidth and heavy compression mean that the recording format is not cleared as an approved HD acquisition format for many Broadcasters.
The compression scheme is very efficient and achieves a high level of compression, so that 1 x 16GB card stores 50 mins at HQ mode in compared with just 16 mins using the Panasonic P2 system or 30 mins using P2 at Pn mode. The cameras have been extremely well received by producers and cameramen alike owing to the quality being the best of its category. The P2 system and SP recording modes actually only record x — but still looks really good though! Firstly, the 2 cameras in the product range although excellent quality are quite front-heavy — not a problem if they are tripod-mounted but this is very noticeable if you use large HD lenses and use the camera on the shoulder.
Anton Bauer makes a powering option, which helps to balance the camera in this mode but then you must use Anton Bauer batteries. Although saying that, once the appropriate pug-ins are used, the system works very well. Thus post- production is easy and compatible with all current formats. As this system uses the same long-GOP compression scheme as HDV although with less compression , under certain rare conditions, the codec may struggle when a sequence of images does not follow a predicted pattern — like a single bright frame illuminated by a solitary flash gun.
This is because the compression scheme relies on the previous frames to build future frames and a problem may be caused if a previous frame breaks the predicted pattern. This may make the compression scheme unsuitable for certain types of programming, though I would stress that these conditions are rare. In our opinion, the format is unsuitable for chroma-key as a consequence of heavy compression of colour information colour space.
This does not mean that you cannot use XDCAM EX for chroma key - it uses the same colour compression system as DV and HDV, so if you currently use these formats for chroma-key and you are happy with the performance, then there is no issue! There has to be a price to pay for efficient coding and this is it! XDCAM EX with an EX-3, then aside from the technical and subjective comparisons of image production values, they will look very similar but the chroma-key will be superior on the P2 system since twice the colour information is recorded on the Panasonic codec.
Thus chroma-key and heavy grading will also be easier using formats but this does not matter on most productions — worth being aware of though. This very much competes with the Panasonic P2 system, and as so, this is only a practical system if the post-production workflow seamlessly integrates using the native compression scheme. For the technically interested readers, the SP 25Mb version actually only records x pixels of resolution in a colour space and the HQ version records the full x resolution but still only in a colour space. The main advantage of using the EX series camcorders is the high recording capacity of the data cards.
This is much greater capacity than P2 but with more highly compressed images. It also is capable of under and over-cranking images in mode of up to 60 fps with the benefit of immediate playback. Instead, the post production systems will need to join the clips manually and will need to have access to the media on BOTH cards to play the second part of the scanned clip — this is because as a result of using the long GOP compression scheme, the data on the first card will be needed to play the opening frames of the second card.
Not a problem to worry about but worth being aware of.
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File transfer speeds of Mb per second are commonly quoted by Sony but in reality the speed of transfer will be governed by the bus and drive speeds. In tests we have found that an 8GB drive containing 30 mins of HQ media took the following time to transfer to hard drive using a Macbook Pro:. There are many variants, but the fastest transfer speeds are via the Express 34 card slot in a PC or Mac but these transfer speeds are surprisingly comparable with the transfer of P2 media, given that the data is much smaller.
They are very easy to connect using the USB-2 connection. The XDCAM EX camcorders can capture images at frame rates selectable from 1 fps frame per second to 60 fps in P mode and from 1 fps to 30 fps in P mode, in increments of 1 fps. For example, when viewed at Conversely, images captured at 4 fps will appear 6 times faster than normal. The obtained quality of the slow- and quick-motion images is extremely high from those created in the editing process.
In addition, these slow- and quick-motion images can be played back immediately after shooting, without using any converters or processing on non-linear editing systems — another benefit of using non-linear capture technology. It also means that you can see the slow motion effect on location without having to wait for the post-production phase.
The Slow Shutter function not only increases camera sensitivity but also produces a special blurring effect when shooting a moving object, for enhanced shooting creativity. The shutter speed is selectable from 2-, 3-, 4-, 5-, 6-, 7-, 8-, , , and frame accumulation periods. Operators can select the best-suited preset gamma curve depending on scenes.
This is convenient for shooting over long periods of time, and also when creating special effects of extremely quick motion. Using this function, images for pre-determined frames are recorded every time the Record button is pressed. The XDCAM EX camcorders come equipped with a wide range of interfaces optimised for a variety of operational needs, wide interoperability and flexible workflow.
This is the big brother to the EX-1 and offers the same frame-rates and quality to the EX-1 but sports a greatly superior viewfinder and most importantly, an interchangeable lens. Production Music. Technical Support Manuals Product Suggestion.
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