Were I to suggest that there are advantages to shooting certain broadcast projects with a 4K2K camcorder, I have no doubt what your response would be after giving me a harsh “are you crazy” look: “There’s no editing equipment for 4K2K, no distribution system of any kind and no 4K2K HDTVs for sale at any price.”
Telling you that several 4K2K HDTVs have already been announced for delivery during the remainder of this year will not, I am sure, modify your negative view. Nor will telling you that I can edit 4K2K on a lightweight MacBook Air be likely to modify your opinion.
The fact that neither in-plant nor external distribution systems can handle 4K2K is a solid reason in your view that super HDTV is years, if not a decade, away.
Nevertheless, I’ve little doubt that when you shoot digital photographs, whether you display them on your computer monitor or HDTV, you shoot your photos with a camera that has 12 to 16 megapixels. In fact, if you have one of the newest cameras, you may be shooting photos with 24 to 36 megapixels.
There are two reasons why you shoot photographs with six to 18 times more pixels than can be displayed. First, the higher the shooting resolution, the better image detail that will appear on a lower-resolution display. Second, the high-resolution original allows you to severely crop a picture and still have more than 2 megapixels in the cropped image.
Both of these reasons also apply to shooting video. The key is to think of source resolution separately from distribution and viewing resolution. One can shoot at four times the distribution and monitor resolution. Second, the ability to crop video is important when shooting sports or documentaries.
In this article, we’ll look at four different types of cropping that can be applied to video. I used JVC’s GY-HMQ10 Quad HD handheld ENG-style camcorder.
Multiple view crops
When shooting with a single camera, one lacks the ability to capture multiple views of the same subject. However, if one has a super-resolution source image, one can crop multiple views from the same video. (See Figure 1.)
Let’s look at a close-up of the powerboat pulling two skiers. (See Figure 2.) It’s important to remember that even though this is a crop, it still has 2 million pixels that comprise a full HD image.
Similarly, a close-up of the skiers still contains 2 million pixels. (See Figure 3.)
Because both views come from the same camera as it pans with the action, it’s possible to cut between the views. It’s also possible to superimpose the two views.