News & Commentary
REVIEW: Casio, HP, and Nexian Pocket PC Add-on Cameras
I used the camera in a situation similar to actual conditions under which I might take a photograph: Non-optimal lighting conditions without significant setup time. I used each camera with a minimum of fuss. I did attempt to focus each lens for each photo. However, I did not spend a lot of time doing this. Each photo was taken at the device's maximum resolution (640x480, 800x600, or 1280x1024).
You can find more information about each of these cameras and what Pocket PC I used to test each camera below in Table 1.
Table 1. Feature comparison of camera options for Pocket PCs. The Sony Mavica is a sub-1-megapixel standalone camera used as a control comparison.
CAMERA TESTS & COMMENTS
Figure 1. All photos taken between 9:00 and 9:30am outdoors under slightly overcast conditions. Click on a photo to see full-sized and unretouched original images. The Nokia photos were taken around the same time but under bright sunlight.The Casio Digital Camera has always had a lot of color bleeding in every photograph I've taken with it. It also tends to overexpose images when set at its default settings. However, it generally performs reasonably well under various lighting conditions. The HP Pocket Camera does not have as much noticeable color bleeding. However, it is very sensitive to available light and does not perform well in many conditions (especially very bright or low-light conditions). The Nexian NexiCam seems to have produced the best overall set of results in my tests but at has the least contrast and color saturation. This can, of course, be adjusted using any of the many photo editing tools available (including Pocket PC based photo editors).
[July 4, 2003] After trying the Nokia 3650 phone's camera, I amend my comments above by saying I think the Nokia's camera produces the best overall images so far. More importantly, since it is not a CF card that needs to be inserted in a Pocket PC, it is far faster to setup and use. Transferring images to the Pocket PC wirelessly using Bluetooth was easy and fast. It can also transfer images using IrDA (infrared).
The Casio and HP CF cameras both lack lens protection when out of their carrying cases. This can be a bit of a problem since it means I cannot use flip-top carrying cases clipped to my belt. And, swapping a CF camera with a CF storage card can be a bit tricky when outdoors and on the run. It is easy to lose the CF storage card in the rush and confusion of a quick picture taking opportunity.
The Nexian NexiCam has a lens cover but does not provide a cover for the iPAQ's screen (as the various iPAQ sleeves do). The added NexiCam bulk means that you generally need a case with a protective screen area to camera the iPAQ/NexiCam combination. In my case, I generally end up carrying the NexiCam and slide it on to the iPAQ when I need to take a photo. So, I end up carrying two pieces (Pocket PC and the add-on camera) whenever I leave my home or office.
[July 4, 2003] The Nokia 3650 lens is protected by a clear fixed lens cover. So, assuming the phone is already turned on, you are a few button presses away from taking digital photos. The camera I tested came with a 16MB MMC card. So, I did not have to use the phone's main memory to store photos or video. At 4.59 ounces it does not add a lot take out of the house or office. And, since it is also a GSM/GPRS phone, it plays triple duty as a voice phone, data conduit, and still/video camera.
[November 22, 2003] The Sony Ericsson T610 lens is protected by a clear fixed lens cover like most (all?) camera phones. Its small 2MB internal memory is somewhat offset by the tiny 0.1 megapixel resolution (the lowest resolution of any camera discussed here). However, the color and clarity of the photos are quite acceptable for a camera phone.
[August 1, 2004] The Veo Photo Traveler 130S is the first 1.3 megapixel Pocket PC camera I have tested. The clarity of the photos taken using this camera was quite impressive compared to the older sub-megapixel models. However, it tends to produce both under-exposed and over-exposed photos that have a color balance that produces a magenta tint. Much of this can be corrected in a photo editor, however. Photos taken indoors tend to look extremely underexposed. Videos, surprisingly, fare much better under various lighting conditions.
One example are the photos I took using the Casio Digital Camera with a Casio E-100 while on vacation with my family several years ago. I had decided to save some luggage space by not carrying a digital camera. But, when we got there I found I started snapping low-resolution photos to send back to friends and family via a web photo page. You can see one of the photos in an old Microsoft Presspass article titled The Not-So-Lazy Days of Summer.