[Tortellone]

Le prime impressioni di NikonRumors.com
nel confronto tra D7000 e 7D

1. Initial Impressions:
2. Here is a listing of some of the things that I have discovered about the Nikon D7000 since this morning (10/21/2010).
   
3. 1. When shooting in Aperture priority of manual mode during live view / video mode the Nikon D7000 will not allow you to alter the aperture value. ISO, white balance, and shutter values can be changed - but you are forced to leave Live View mode to change the aperture. Makes no sense to me.
   
4. 2. Unlike the Canon HDSLR models, the Nikon D7000 shows how much time is remaining for that particular shot. The timer indicates how much recording time is left based on available memory. When the camera's live view timer (20 minutes per clip) is reached the camera will stop recording, even if additional memory is available. If this happens you can press 'rec' to start another 20 minute segment.
   
5. 3. The Nikon D7000 can record up to 20 minutes of continuous video. The Canon EOS 7D must be started again after 12 minutes.
   
6. 4. The Nikon D7000 starts capturing video the split second you press the record button. In contrast the Canon EOS 7D tends to start about 1/4-1/2 second after you press the record button.
   
7. 5. The Nikon D7000 features a "Flicker reduction" mode to match the frequency of the local AC. It's probably similar or identical to switching the Camera (Canon or Nikon) to 50Hz or 60Hz. You can also try altering the shutter value of either camera to match the flickering.
   
8. 6. The Nikon D7000 lacks a 60fps, but it does offer both 24fps and 30fps at 720p and 1080p resolution.
   
9. 7. Canon EOS 7D video files are 2.4x larger than the Nikon D7000. On a 24 sec. scene the Nikon D7000's file size was 59.2MB. The same 24 second scene on the Canon 7D was 142MB in size. I think this shows that the D7000 records at around 19Mbps vs. the Canon 7D at about 47Mbps, although both numbers will vary some based on content.
   
10. 8. I love the dual memory card slots. You can set the camera up to automatically flow from one card to the other when the first card is full, to duplicate your data for backup purposes, to record RAW images to one card and JPEG to the other, and to set one card up for video and the other for stills. If I could wish for anything it would be for at least one CompactFlash card slot as I find them easier to handle and they hold up better out in the field (in pockets, etc.).
    
11. 9. Interval timer: As with other Nikon models the D7000 has an intervalometer built-in, making it easy to capture time-lapse footage without the need for an external controller.
    
12. 10. Don't be fooled by Nikon's listing of "approved" memory cards. Any memory card that supports the SD, SDHC or SDXC standard can be used. As with anything reliability can vary from brand to brand.
    
13. 11. The Nikon D7000 can hold about 28 minutes of 1080p / 24fps video per 4GB memory card. With the Canon's 7D higher bit rate it can only store 12 minutes per 4GB memory card at the same resolution and frame-rate.
    
14. 12. The ergonomics of the D7000 for video use is pretty poor. For example, the magnification assist buttons are located to the lower left of the 3.0" color display. This forces you to use the left hand to magnify the screen, then go back to the lens to adjust focus, then go back to the zoom out button so that you can properly frame your shot, then back to the lens to help support the camera for stable shooting (handheld at least). Canon cameras are designed so that the right thumb can press the magnification button while holding the grip. This allows the user to keep their left hand on the left for focusing and support - without having to bounce back and forth.