WELCOME, VIDEO SLR

Nikon D90 is the world8217;s first SLR camera which can record video. DAVID POGUE tells us why this is the start of a new era

Nikon D90 is the world8217;s first SLR camera which can record video. DAVID POGUE tells us why this is the start of a new era
If you saw it just sitting there, you8217;d never guess that the new Nikon D90 is a mind-blowing, game-changing camera. It looks like any other big, black intermediate single-lens reflex camera: much more compact than a professional model, but much bigger and heavier than a pocket camera.
What you get in return for looking like a tourist, of course, is the potential for absolutely stunning photos. Thanks to factors like high-quality, interchangeable lenses, a huge light sensor and high-speed circuitry that reduces shutter lag to zero, the pictures you get from an SLR generally make pocket cameras8217; output look like amateur hour.

The new D90, which arrives in stores next month, happens to be a superb SLR. At 1,000 or 1,300 with a new 18-105 millimetre, image-stabilised lens, it8217;s priced neatly between the D300 Nikon8217;s bigger, heavier, all-metal professional model, 1,650 online and the intermediate D80 720 online, which will soon be discontinued.
The features sit neatly between those cameras, too. The D90 has a 12.3-megapixel CMOS sensor that measures 1.14 inches diagonally 24 by 16 millimetres, a hair smaller than on professional cameras. At start-up or on command, the D90 gives that sensor a little shudder to shake off dust that may have entered the camera during a lens change, in that way avoiding shadowy specks in the photos.

This camera is rocket-fast, too. Autofocus is nearly instantaneous, shutter lag the delay after the button is pressed is zero, and you can snap 4.5 photos a second for as long as you keep the button pressed.
There are some new features: a clever calendar that lets you hunt down photos by date, right on the camera; an effect that simulates the spherical view of a fish-eye lens; a jack for an external GPS receiver that is coming from Nikon for geotagging pictures; a function that straightens off-kilter horizons; face-recognition autofocus; and so on.
But none of that is the big news.
The challenge, on an SLR, was figuring out what to do with the mirror inside. Ordinarily, it bounces light from the lens into the eyepiece; it flips out of the way, exposing the sensor, only at the instant a photo is taken. To display a live image on the screen, you8217;d have to lock that mirror out of the way, so that the sensor receives light continuously.

That8217;s exactly what happens when you press the Live View button on the D90. You hear a little clack 8212; that8217;s the mirror flipping aside8212;and a live video image appears on the screen. Now you can shoot photos at angles where holding the camera to your head just wouldn8217;t work; it comes in handy more often than you might think.

There are compromises, though. When the mirror is out of the way, the D90 relies on a slower, contrast-detection autofocus system; it can sometimes take several seconds to lock focus in Live View mode. But don8217;t trash Live View. It, after all, is the key to the breakthrough feature of the D90, the secret that turns it into a completely new kind of recording instrument. Ready?

The D90 is the first SLR in the world that can record video. High-definition video, at that. Stunning, vivid, 720p, widescreen, 1024-by-720, 24-frames-per-second video, with the colour and clarity that only an SLR can provide.

Now, most people8217;s first reaction is: 8220;Well, duh. My 200 Canon has been capturing video for years.8221; Or maybe: 8220;What a gimmick. Who8217;d ever use video on a 1,000 piece of photographic equipment?8221;

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But there8217;s something much bigger going on here. Remember: any control, effect or lens that8217;s available to the D908217;s still photos is now available for videos. Think of all the freedom you gain that you wouldn8217;t generally have on a camcorder: control over focus, depth of field and exposure; special effects like fish-eye, monochrome and vivid; and excellent image stabilisation when using a Nikon VR lens.

But here8217;s the real mind-blower: You now have a video camera that takes interchangeable lenses. Before the D90, if you wanted a hi-def video camera with removable lenses, you8217;d pay 7,000 for the camera alone, and another 7,000 to 20,000 for each lens.

On this camera, though, I tried Nikon8217;s 500 fish-eye lens, and filmed a complete 180-degree vista without having to turn or pan. With a macro lens, I filmed a bumblebee, huge and clear as though it were in a National Geographic documentary. With a huge telephoto lens, sitting in my bleachers seat at the Pilot Pen tennis tournament, I was suddenly filming what other people could capture only as still images. Independent filmmakers, rejoice.

Meanwhile, the zoom ring gives you far more zooming control than a typical camcorder does. For example, you can do a snap zoom, from 1X to 10X, in half a second.

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Now then, before you get on the D90 waiting list, a word of warning: it8217;s not a camcorder. Its screen does not flip out and swivel, so you can8217;t easily film yourself. There8217;s a microphone and speaker, but the sound is mono. And the AVI-format video, while easily edited in programs like iMovie and Movie Maker, eats up an insane amount of memory-card space8212;about 400 megabytes a minute.

A shot can8217;t be longer than five minutes in hi-def, either, or 20 minutes in standard definition; after that, the sensor heats up too much. So don8217;t expect to film the school play on this thing. Worst of all, the autofocus doesn8217;t work for video. You can autofocus before you start rolling, or you can use the manual-focus ring while filming. But those are kludges; if the distance to the subject changes while you8217;re filming, moments of blurriness are inevitable.

In other words, the Nikon D90 presents benefits and drawbacks unlike any other category of image-recording equipment. On one hand, your creativity may be challenged by the lack of autofocus, the limited shot duration and the enormous file size. On the other hand, the D90 brings you an incredible range of video image controls; interchangeable lenses at a fraction of the usual prices for video; a gigantic sensor that takes videos in lighting conditions that would render traditional camcorders useless; and the convenience of capturing short, sharp video clips without hauling around a second machine.

It8217;s pretty funny that D90 comes from Nikon, a company with practically no experience in video cameras. But who cares? Even with its 1.0 limitations, the D90 is an outstanding still camera and an eyebrow-raising video camera. Check it out, people: the era of the video SLR has begun.

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NIKON D90 SPECIFICATIONS
Effective pixels: 12.3 million
Image sensor: CMOS sensor,
23.6 x 15.8 mm
Storage media: SD memory cards, SDHC compliant
Monitor: 38221;, approx. 920k-dot VGA, low-temperature polysilicon TFT LCD with 170deg; viewing angle
Exposure modes: Auto modes auto, auto flash off, Advanced Scene Modes Portrait, Landscape, Sports, Close-up, Night Portrait, programmed auto with flexible program P, shutter-priority auto S, aperture-priority auto A, manual M
Dimensions W x H x D: Approx. 132 x 103 x 77 mm
Weight: Approx. 620 gm without battery, memory card, body cap or LCD monitor cover
8212;NYT