There are a minimum of exposure controls: the user can set the exposure time in one of 6 settings (ranging from .7 seconds to 4 seconds). Useful to capture very dimly lit still objects or for the "time-lapse" effect. Users can also set f-stop +/-2 in half-steps (but can't set f-stop & exposure at the same time).
That would be it for exposure controls. Its pretty much point & shoot. Which is fine if one never has the intention of using the numerous controls offered on other cameras. If you want the numerous other controls, you'll find the DX4530 frustrating.
That's the camera. I humbly offer my experience with it.
Photo quality 5 megapixels. The pictures are just great. Kodak's Color Science turns out a finely balanced picture. The white balance is excellent, and the colors are somewhat oversaturated, but since most people like vivid colors, thats what camera companies do, oversaturate clolors.
Batteries - excellent choice between lithium CRV3 (found nearly everywhere), and regular AA batteries (such as rechargeable Ni-Mh). Kodak doesnt recommend using alkalines, but its nice to know if you're on vacation & the batteries go out, alkalines will do in a pinch, although they won't last long. I also like that the CRV3 is a common photo battery available in most stores with a photo department & not a proprietary battery.
Zoom The DX4530 has a 3x optical zoom, a nice feature still not found on many $300 cameras.
32 MBs of internal memory I have an external memory card reader & its easy to forget to put the card back in. With this camera, you always get a least some pictures. Kodak says one can fit 21 pictures at the highest resolution, 79 at the lowest resolution (1.2MP)on the internal memory. It can also, obviously, supplement any additional memory you may buy.
Additional lenses I have yet to try these, but they did factor into my decision. Kodak makes a 37mm to 43mm adapter that allows one to use a wide-angle lens (twice the field of view), a 2X telephoto, and a close-up set of lenses.
Lens cap I don't understand Kodak's thinking on this one. All other cameras I looked at (including other Kodaks) have an automatic covering that protects the lens. Turn the camera on & the lens covering slides open & the lens readies for pictures. Turn off the camera & the lens covering automatically covers up the lens. The DX4530 has a traditional lens cap. Turn the camera on & the cap pops off (onto the floor if you don't tether it to the camera). And its up to you to replace the lens cap when done. Minor, but annoying.
Compression Kodak uses an aggressive compression without a way to write uncompressed files to memory. The compression isn't terrible, but there would be times when I'd like to have a RAW or TIFF picture to work with. Again, minor but annoying.
*edited from my review on epinions.com*