Almost as good as a GL2, for half the price
I bought my Canon Optura Xi two months ago. I almost bought a Canon GL2, until I studied the spec sheets. Both camcorders have the same features: 16-bit stereo recording; f/1.6 lens; 11x zoom; Av, Tv, and manual exposure control, etc. What stands out as different in their spec sheets is their CCDs (the chips that record the image). Digital video (DV) is 640 x 480 pixels, or 307,200 pixels, or one-third of a megapixel. NTSC broadcast video is 525 lines with a 4:3 aspect ratio, or 367,500 pixels. To get color you need three times that number of pixels (for red, green, and blue), or about one megapixel. In the past, CCDs had far fewer pixels, so camcorders had three chips to get enough pixels. The GL2 has three 1/4" chips, each with 380,000 pixels. Three chips demands a lens three times bigger. Splitting the light three ways requires a big, heavy prism. 3-chip camcorders are big, heavy, and expensive.
The Optura Xi takes a different approach. It uses one chip with 1,230,000 pixels. The CCD is between 1/3" and 1.4"; in other words, bigger than the GL2's 1/4" chips, but smaller than the XL1S's 1/3" chips. (Pro video cameras have three 1/2" or 2/3" chips, making them much bigger and heavier.) The Optura Xi has more pixels than the GL2, yet doesn't need the prism. The lens and body are smaller and lighter, and the Optura Xi is half the price.
I've found that my Optura Xi has accurate colors (unlike my old Canon Optura 200MC), and it performs well in low light conditions. The GL2's colors look a little better (more saturated) but only a little. The Optura Xi looks much better than previous one-chip camcorders.
Apparently the size of the pixels make a difference. Imagine a CCD with tiny pixels the size of one photon. The state of such a pixel could be described with a one or a zero (either a photon hits the pixel, or no photon hits it). Imagine a CCD with pixels one million times bigger. You'd need a number between one and a million to describe how many photons hit each pixel. This illustrates that a camcorder with bigger CCDs (and a bigger lens) should produce more color detail, especially in very bright or very dark parts of your picture.
The GL2 is only slightly better than the Optura Xi, and costs twice as much. To get a camcorder substantially better than the Optura Xi you'll have to pay many times more, such as for a Panasonic AG-DVX100A or a Canon XL2. I'm saving my money until HD camcorders are available. (I don't consider the JVC GR-HD1 to be high-def, as it has one 1/3" CCD with 880,000 pixels trying to fill a 1280x720 one-megapixel format!)
My advice is to buy the Optura Xi, then spend your money on microphones, and good tripod, lights, video editing software, etc. You'll make better videos than people that blew their budget on a GL2.
Another word of advice. I did a "price search" on the web and found various places advertising prices lower than Amazon (and lower than eBay prices). When I ordered from them, they were "out of stock" and tried to bait-and-switch me to other camcorders. I found that the lowest prices for camcorders that really existed are on Amazon.
--
Review by Thomas David Kehoe, author of "Hearts and Minds: How Our Brains Are Hardwired for Relationships"
|
I recommend this DV camcorder
I've owned the Optura Xi since June 2004 and my experience has been wonderful. I am a novice user in that I have not spent a lot of time learning the intricacies of the many, many features on this camcorder, such as the aperture settings and things of that nature and outside of using the zoom feature, I let the camcorder figure out the best options for what I am filming.
But what I can share is that the video is clear, crisp, and I give it very high ratings. The image stabilization is great and the zoom feature is awesome. The audio is so-so and if you are filming something that requires adequate audio, you may want to invest in one of those boom microphones that can be attached to the camcorder. The low light limitation is also pretty frustrating and the filming in my house did not have very good results more than half the time. I had to turn on way too many lights to get a halfway decent video. I have actually broke down an ordered the VLF-1 auxilary light to combat this limitation. I haven't received yet, but I am pretty sure it will vastly improve my problems when filming indoors.
All in all, it has been almost a year and I still get a thrill when I play back something that I have taped and see the clarity and resolution. I have also made some great DVD's of home videos, with music, cut scenes and narration...pretty cool, indeed!!
|
