Nikon D4

We haven't had a chance to fully test this product yet, but we've assembled this helpful overview of relevant information on it.

Nikon beefs up their DSLR line-up with the new D4. It has some big upgrades over the previous D3. The camera comes with a 16.2 megapixel FX format CMOS sensor. It’s also running a new EXPEED 3 image processor. Perhaps the biggest upgrade in features is the HD video recording which can record at 1080p in either 30 frames per second or 24fps. View the recorded videos using the HDMI port. D4s come with an ISO range 100 to 12,800 which is expandable from 50 to 204,800, which should help increase the low-lighting resolutions. 

The camera weighs about 2 pounds and 15.3 ounces with a battery and XQD memory card. The body itself weighs 2 lbs and 9.6 ounces. Support for XQD and Type I CompactFlash memory card is available and the camera features dual memory card slots. The screen features a 170 degree viewing angle and is capable of Live View.

Features List:

– 16.2 megapixel FX format CMOS sensor

– 1080p HD video recording

– HDMI port

– ISO range 100 – 12,800

– Expandable range from 50 – 204,800

– 10FPS AF/AE, 11FPS when AF locked

– EXPEED 3 image processor

– XQD or Type I CompactFlash memory card slots

– Dual memory card slot

Digital Trends’ Camera Buying Tips:

Memory card buying tips

Name Brand: Buying a name brand memory card can sometimes cost an extra few dollars, but along with the name comes a trustworthy company, a good warranty, a generous exchange policy and a reputation for stability – something that’s much more critical than it sounds.

Speed: Not all Flash Memory cards are created equal. Some are terribly slow and others are turbo charged for high-end digital photography. True high-speed Flash Memory cards will have their speed ratings prominently displayed, whether on the card itself, the product packaging or both. You’ll see ratings like 80X, 133X, 266X, or perhaps 8MB/second, 20MB/second or 40MB/second. If you don’t see this number, inquire with a sales rep. If they don’t know or if the manufacturer hides this info, don’t buy the card. Look for a card that has at least a 9MB/second or 60X rating. Why is this speed important? If you’re taking numerous photos in succession, you don’t want the camera to stop taking photos so it can slooowwly save the images to the memory card.

Storage capacity: There are many factors that affect how many photos you can store on a single card – how many “megapixels” the camera is rated for, whether you’ve selected highest-quality photo settings or if you’ve set your camera to take slightly smaller photos. For example, an 8 megapixel Canon point-and-shoot camera can fit around 2,200 high-quality photos on an 8GB Secure Digital card. By this standard, even a 1GB memory card could hold up to 275 high quality photos. A whopping 16GB card could hold nearly 4,400 pics! That’s a lot!

What about shooting video?

Within the past few years, video has gone from a novel sideshow that yielded almost unusably bad results, to a legitimate secondary purpose for many point-and-shoot cameras. Although you probablt won’t want to replace your dedicated camcorder with a camera that also shoots video, many will do the job just fine for short, impromptu clips.

First off, pay attention to the resolution a camera can capture – VGA (640 x 480) is now common on point-and-shoot cams, while 720p is getting more frequent and 1080p sometimes crops up on DSLRs. Video in the AVCHD format – the same type real digital camcorders shoot – is preferable to other formats. Pay attention to the encoding bitrate, measured in megabits per second (mbps). The higher the rate, the more detailed the videos will look, although they will take up more space on your storage card as well.

What about memory cards?

There is no universal memory card to fit all digital cameras – not yet, anyway. Based on internal politics, design considerations and financial reasons, individual camera manufacturers typically adopt a particular style of Flash Memory card for their cameras. Some manufacturers will even split their alliances – one type of memory card for professional-level cameras, and another type of memory card for consumer level cameras. When buying a new Flash Memory card, remember which camera you have and the type of card it requires. Some camera snobs (like your humble writer) will even selectively buy a digital camera based on the type of Flash Memory card they prefer to use!

The most common types of Flash Memory cards are:

Compact Flash, or CF – Roughly the size of a silver dollar (though not round), the CF card is one of the earliest types of Flash Memory cards and is most often used in professional or semi-pro digital cameras.

Secure Digital, or SD – Roughly the size of a postage stamp, the SD Card is available in a wide range of storage capacities. It’s inexpensive, durable and amazingly lightweight.

Memory Stick or Memory Stick Pro – About the size of a small stick of gum, the Memory Stick is meant for Sony Digital cameras.

XD-Picture, or XD Card – Typically found in Fuji and Olympus cameras, the XD Card is about 40% smaller than the SD card.

What’s the difference between optical and digital zoom?

Like megapixels, manufacturers frequently throw around big numbers relating to digital zoom. Like megapixels, you should ignore them. Optical zoom uses real optics to get you closer to your subject, while digital zoom merely takes the same amount of pixels you would have in a standard shot and blows them up to fill the frame. The camera captures no more detail. It’s the same zooming or cropping trick you could pull in Photoshop, done in the camera on the fly. While that can sometimes be handy, image quality suffers severely as a result, and most photographers would never use digital zoom.

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