The Nikon D40x is a very compact digital SLR camera and this is not only on account of the housing. The memory card and the Lithium Ion battery are compact as well. The storage takes place on a Secure Digital or SDHC memory card; this is only logical. The Nikon D40x is SDHC (SD High Capacity) compatible, so also memory cards larger than 2GB can be used. The SD cards are a global standard, and for this reason the selection is enormous. There's a large choice in storage capacity, as well as speed and because most digital cameras use this small card, you can buy it at many places globally. A great advantage is also the price, it is relatively low. Whenever you make the transition from a compact camera to the Nikon D40x, you can continue to use the memory cards.
Nikon D40x - SD & SDHC memory card
Pictures taken with the Nikon D40x can be saved in JPEG or the raw NEF format. NEF and JPEG at the same time is also possible, but then you always have JPEG in the basic compression. The largest compression, but also the one with the least quality. It is a pity that you can't choose to save a JPEG Fine or Normal with the NEF. The internal buffer in the Nikon D40x is quite large. With 100 JPEG pictures in the highest quality, or 6 NEF pictures, you can work for quite a while. The pictures are quickly transferred to the Secure Digital memory card as well. Even the slower cards work quite fast. But if you photograph a lot of action, a faster card like the SanDisk Extreme III is definitely recommended. With a full buffer you can simply keep working at 1.5-2 fps. With the slower cards, the speed will quickly decrease to 1 fps. If you mainly photograph still subjects, a standard memory card will be just fine. When it comes to the memory prices nowadays, the last thing you want to save money on is the memory card. Make sure to get a memory card with a large storage capacity. 1GB minimum, but possibly the step to a SDHC memory card of 4GB is not a superfluous luxury.
Nikon D40x - 1000mAh EN-EL9 Lithium Ion battery
For the energy supply, Nikon uses the same new battery as with the D40. The Nikon D40x uses a 1000mAh EN-EL9 Lithium Ion Battery. It's a pity that it doesn't use an existing battery, but they were probably too large. On the other hand is the target group the one of new users. It's unfortunately if you're the one that switches from an ‘old' Nikon DSLR to the new Nikon D40x. You will not able to bring along the battery or batteries. Probably the compact format is the main reason for using a new type of battery.
Nikon D40x SLR - USB 2.0 Hi-Speed interface
The pictures can be transferred straight from the camera to a PC or notebook by means of the fast USB 2.0 Hi-Speed interface. On account of this quick connection in combination with a fast memory card, like the SanDisk Extreme III, the digital workflow will not be hindered quickly by delays. Those who rather don't want to use the camera to transfer data, have the choice to use a so-called card reader. Such a device is actually indispensable in the digital work environment, and makes the transfer of the data considerably more pleasant. The USB 2.0 Hi-Speed Extreme SanDisk card reader works quickest at this time (next to FireWire) and transfers the data with a maximum speed of 20MB/sec.
Nikon D40x - Energy saving SLR camera
The D40 already caught our attention by its energy saving character; the Nikon D40x tops this. It's, without a doubt, possible to take a few hundred pictures; possibly even a thousand, but I didn't get the chance to take this many pictures with the Nikon D40x. Nevertheless, it might be handy to obtain a second battery, especially if you travel a lot.