A detailed breakdown of the viewfinder view can be found on the diagrams below.
The D50's battery compartment is in the same place as the D70, in the base of the hand grip. Pull the small lever to open the door, inside is a slot for the supplied EN-EL3 Lithium-Ion rechargeable battery.
Battery / Charger
The D50 is powered by the same Nikon EN-EL3 Lithium-Ion battery used in the D70 and D100. This battery provides 1400 mAh at 7.4V (10.4 Wh). New to the D50/D70s is the MH-18a battery charger which is more compact than the older MH-18 provided with the D70 and D100. A full charge from completely flat takes around two hours.
The D50 becomes the first Nikon digital SLR to take Secure Digital (SD) cards. The card compartment door is located on the rear right edge of the hand grip and opens cleanly revealing a standard SD slot (push to insert, push to remove). The camera does not power down if you open the SD compartment.
On the left side of the camera (from the rear) are all of the camera's connections. At the top is a mini USB port (USB 2.0 Hi-Speed), below this video out and at the bottom DC-IN connector for the optional AC adapter. Like the D70 the D50 does not have a PC Sync flash terminal.
USB 2.0 speed test
The D50 supports full Hi-Speed USB 2.0 (maximum throughput of 480 Mbps) as well as being backwardly compatible with USB 1.1. To test the D50's transfer speed we used a mixture of JPEG and RAW images totaling 70 MB and transferred them from a SanDisk Extreme III 1 GB SD card via the camera's USB port. As you can see from the results below the D50 isn't quite as fast as a USB 2.0 card reader but is about four times faster than USB 1.1.
|Nikon D50 via USB 2.0||29 Mbps (3.7 MBytes/sec)|
|USB 2.0 SD card reader||50 Mbps (6.3 MBytes/sec)|
|CardBus 32-bit SD adapter||99 Mbps (12.3 MBytes/sec)|
Mbps = Megabits per second, MBytes/sec = Megabytes per second
Camera Base / Tripod Mount
|The base of the D50 looks identical to the D70, a metal tripod socket which appears to be aligned exactly with the center line of the lens and the focal plane.|