Timing
Since they're rarely reported on but very important to the picture-taking experience, I measure both cycle times and shutter delay times for all the cameras I review, using a test system I designed and built for the purpose. (Crystal-controlled, with a resolution of 0.001 second.) Here are the numbers I collected for the Kodak DX4530:

NOTE: My qualitative characterizations of camera performance below (that is, "reasonably fast," "about average," etc.) are meant to be relative to other cameras of similar price and general capabilities. Thus, the same shutter lag that's "very fast" for a low-end consumer camera might be characterized as "quite slow" if I encountered it on a professional model. The comments are also intended as only a quick reference: If performance specs are critical for you, rely on the absolute numbers to compare cameras, rather than my purely qualitative comments.

Power
The DX4530 is powered by two AA cells, or the two-cell NiMH rechargeable pack that comes with the optional EasyShare Dock 4000. As always, I highly recommend using NiMH rechargeable cells, rather than conventional alkaline AA cells.

The table below shows the DX4530's actual power drain in various operating modes, and projected battery life, based on a (true, not rated) 1600 mAh battery capacity. - This is a level of cell capacity I standardized on some time back, to provide a basis of comparison between the cameras I tested. Current NiMH AAs are available with true capacities of 2000 mAh and above, so you could see better battery life under actual use than shown here.

Battery life with the LCD on is somewhat worse than average, but with the LCD off, it's outstanding. If the optical viewfinder were more accurate than average, this would be excellent news, but as it is, with a typical 85% coverage viewfinder, you're likely to find yourself relying on the LCD more often than not. As always, I strongly advise purchasing at least a couple of sets of rechargeable batteries and a good charger along with the camera, to avoid running out of juice at an inconvenient moment. (See my Battery Shootout for the latest ratings of high-power NiMH AA cells, or read my review of the Maha C-204F charger to see why it's my longtime favorite.)

Storage Capacity
The DX4530 stores its photos either in its 32 MB of internal memory, or on SD (Secure Digital) memory cards. While the 32 MB of internal memory is more generous than the typical allotment, I still strongly recommend buying at least a 64MB memory card, to give yourself extra space for extended outings. The chart below shows how many images can be stored on the internal 32MB memory at each size/quality setting, and the approximate amount of image compression applied in each mode. (The more image compression that's applied, the smaller the image files, but the lower quality the photos will be.)