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1. ISPQ VIDEOCHAT REVIEW MOVIE
2. ISPQ VIDEOCHAT REVIEW SERIAL
3. ISPQ VIDEOCHAT REVIEW DRIVERS
4. ISPQ VIDEOCHAT REVIEW FULL
5. ISPQ VIDEOCHAT REVIEW PRO

Okay the latter is pretty cheap and cheerful (about on par with the headphones you get given on airliners) but it’s usable.

ISPQ VIDEOCHAT REVIEW DRIVERS

It includes the iBot camera, which can be bought separately for $99, OS X and OS 9 drivers from IOXperts ($20), and a headphone-microphone headset for video-conferencing.

ISPQ VIDEOCHAT REVIEW PRO

The iBot Pro package is remarkably good value given what’s included. On the other hand, the extra weight it gives the camera and stiffness of the camera within the mounting makes the camera very nice to use placed on a desk, and combined with the included headset and the nicely designed focuser, this is easily one of the nicest webcams around for videoconferencing. What the stand doesn’t accomplish is allow the user to clip the camera onto a monitor or laptop screen as is the case with the Fire-i camera or for that matter many of the USB webcams such as the Philips ToUCam. The “arms” of the foot that hold the camera body squeeze inwards slightly, holding the angle of the camera very tightly, so even if you focus the camera it won’t slip down from wherever it was pointing before. The stand works well, and keeps the camera pointing where you want it stably and reliably even on a polished desk, through sheer weight alone more than anything else. This foot is certainly whimsical, and combined with the cheerful eye-like design of the camera body, makes the iBot one of the most friendly-looking bits of Mac equipment around. The iBot feels very solid, in part because of the sturdy FireWire cable it comes with, but also because of the heavy metal foot-shaped stand it comes with. Focusing is accomplished by turning a blue ring around the lens, but unlike many such focusers (including that on the Fire-i camera), this ring is comfortably stiff and textured, so that the action of turning the focuser is positive and accurate. The design of the iBot is conventional in many regards, a spherical camera on a mount, though with a FireWire cable hanging from the back instead of a USB one. In this Corner… the iBot Pro from Orange Micro The solution is to avoid the USB bottleneck by using FireWire, a much faster interface (400 MB per second) that allows both high resolution and rapid frame rates. Basically, with USB you can either have high resolution or a fast frame rate, you can’t have both. This is especially obvious if you are using the webcam on a microscope or telescope where the target object covers only a small part of the CCD, and you want every scrap of image fidelity you can get. Aggravating the problem is the compression, which is lossy, so that while each frame appears reasonably detailed, small features can become blurry.

ISPQ VIDEOCHAT REVIEW MOVIE

What normally happens is the frame rate drops to keep the image quality of each frame within the parameters desired, so instead of a flowing, real-time movie you only get more of a slide show effect, with only five or ten frames per second.

ISPQ VIDEOCHAT REVIEW FULL

Up to a point, this works, but if you try to record high resolution movies (say, 640 by 480 pixels) in full colour and with a decent frame rate (around 30 frames per second), the compromises the camera has to make become very evident. What USB webcams do is to compress the data before sending it down the USB cable that way they keep the actual amount of data being sent manageable while trying to keep the image quality reasonably high. This creates a bottleneck between the image data the webcam is collecting at one end and the computer receiving the data at the other. The USB interface is convenient and reliable, but it is relatively slow, with a maximum data transfer rate of about 1 MB per second.

ISPQ VIDEOCHAT REVIEW SERIAL

The main reason for this has been the widespread use of the Universal Serial Bus (or USB) version 1.1 interface by both Apple and the various PC manufacturers for their computers, making it cost-effective for webcams that support both operating systems to be produced and distributed. Until recently, the majority of Mac-compatible webcams have been USB devices. Although inferior to cooled, long-exposure CCD cameras, webcams do have the benefit of costing far less and being simple enough to get good results with almost at once. But my favourite use of webcams is for simple astrophotography. I’ve used webcams to film kittens for a cat breeder, to produce movies for kids to share with their parents, and to photograph astronomical equipment for my web site. They can be used to take stills of adequate quality for webpages and the like, and as movie cameras they are great for recording family events for burning to CD and sharing with others. Webcams are among my favourite computer accessories because they are inexpensive and versatile.