Nikon took their time updating the popular D200 (almost 2 years), but they obviously spent that time cramming as much new tech into the D300 as they could. Here are a few of the comparison highlights (D300 upgrades):

* 12.3 megapixel DX format CMOS sensor
* Self-cleaning sensor unit (low-pass filter vibration)
* ISO 200 - 3200 (6400 with boost)
* 14-bit A/D conversion
* Nikon EXPEED image processor (Capture NX pro-cessing and NR algorithms, lower power)
* Super fast operation (power-up 13 ms, shutter lag 45 ms)
* Shutter life 150,000 exposures
* New Multi-CAM3500DX Auto Focus sensor (51- point, 15 cross-type, more vertical coverage)
* Auto-focus tracking by color (using information from 1005-pixel AE sensor)
* Auto-focus calibration (fine-tuning) now available (fixed body or up to 20 separate lens settings)
* Scene Recognition System (uses AE sensor, AF sensor)
* Picture Control image parameter presets (replace Color Modes I, II and III)
* Custom image parameters now support brightness as well as contrast
* Six frames per second continuous shooting (eight frames per second with battery pack)
* Compact Flash UDMA support
* 3.0" 922,000 pixel LCD monitor
* Live View with either phase detect (mirror up/down) or contrast detect Auto Focus
* HDMI HD video output
* 'Active D-Lighting' (adjusts metering as well as apply- ing D-Lighting curve)
* Detailed 'Control Panel' type display on LCD monitor, changes color in darkness
* New MB-D10 vertical grip fully integrates into body, multi battery type compatible
* Buttons sealed against moisture

Nikon's R1 Macro Flash is compatible with the D300's iTTL Commander Mode for wireless flash exposure control. This flash includes many accessories for different types of macro photography.The R1 Macro Flash
is an excellent flash for anterior esthetic images (smile shots, lab communication) as you are bringing the light from the flashes in at approximately 45 degrees from either side of the subject - the same way lights are set up on a copy stand.

The downside of the R1 is that the flashes are too far from the lens to allow easy posterior views as well as mirrors shots (occlusal and buccal).

UPDATE Sept. 2007: We are now offering a new R1 Dual Point Flash Bracket that solves the positioning issue with the Nikon R1 Macro Flash. (see photo below) Click here for info on the R1 Bracket.


Sigma's EM-140DG Macro Flash is the other flash option for TTL flash control on the D200. The EM-140DG is also compatible with the Nikon iTTL flash control system and simplifies taking the full range of dental photographs. It is a more "universal" flash as it can take the full range of dnetal views.

There are two lens options for the D300: Sigma 105mm macro (16.5oz.) and the new Nikon 105mm VR (Vibration Reduction) macro lens (28oz.). Both lenses offer very similar optical quality while the Nikon 105mm VR adds Nikon's Vibration Reduction system. The VR system makes focusing easier - a sophisticated system measures movement and counteracts the movement by shifting lens elements. If you are taking a mirror shot and you have the mirror in one hand and the camera in the other, you will be amazed how much more stable the image is in the viewfinder. The only down size is the weight - this is a stocky, heavy lens.