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Shop > Inetcam > L-XX
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InetCam Swappable Camera Lens
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This product has been discontinued.
For the CS-200 and CS-100 Cameras
| Available Lenses: |
| 6mm | L-60
| | 8mm | L-80 |
| 12mm | L-120 |
| 16mm | L-160
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InetCam Frequently Asked Questions
Review the following questions and answers for additional details about your iVISTA software:
- I've reformatted my machine and reinstalled iVISTA, but it gives me an error when I enter my code. What do I need to do?
An iVISTA Registration Code can only be registered to one computer. Any attempt to register the code a second time will trigger an error message. The Registration Code must be "reset" if it is going to be used again, such as on a new computer or a computer with a reformatted hard drive.
If you get an error message, you will need a "Registration Code Reset." To do this, go to here.
- What are the minimum system requirements to run iVISTA?
iVISTA should be installed on a PC running Windows 98, ME, 2000 or XP, with at least 32Mb of RAM and 10Mb free hard drive space for the installation of the software.
- How many people can view a streaming video image at one time?
Typically, as many as five people can view an iVISTA video webcast at the same time. However, a fast computer and broadband connectivity can increase the number of viewers, while a slow computer and/or slow Internet connection may result in fewer.
- How much bandwidth do I need?
When webcasting streaming media, there is a constant balancing act between maximizing the number of visitors and maximizing the quality of the video and audio feeds.
Decide what results are important to you (high-quality media or large number of concurrent visitors), and calculate whether or not those expectations are within reach. To determine the number of viewers you will be able to support with your configuration, you will need to take several things into account:
Number of concurrent viewers = maximum bandwidth/bandwidth usage per viewer.
Your maximum bandwidth is easy to determine, ranging from 56 kilobits per second for a 56K modem to 1,000 kilobits per second for a T1 connection. (In our equations below, maximum bandwidth will be referred to as MAXB, the number of concurrent viewers will be represented by N.)
Bandwidth usage per viewer is also measured in kilobits per second. (Bandwidth usage per viewer will be referred to below as BV.) Here is how to compute BV:
The first and most important question you must ask before computing BV is: What is your desired video quality? A higher frame rate results in better quality, but uses more bandwidth. (In our equations, we'll represent video quality in terms of frames per second, or FPS.)
The second question to ask in computing BV is what is your desired image size? Again, a larger image uses more bandwidth per viewer. Will 160x120 (postage stamp size) be good enough? (Resolution will be referred to as R and the size per image based on this resolution will be called SR.)
With these two answers we can start to calculate BV (bandwidth usage per visitor): BV=SRxFPS
Where SR can be found in this table (assuming a reasonable compression rate (65%) which yields a fair quality image):
R=160x120, SR=10 Kbits
R=240x180, SR=20 Kbits
R=320x240, SR=40 Kbits
R=640x480, SR=100 Kbits
For example, if you want to serve 240x180 resolution at 5 FPS then:
BV=20 Kbitsx5=100Kbits per second of bandwidth.
If you have a full T1 connection at 1,000 Kbits per seconds then
N=MAXB/BV, or 1,000/100=10 simultaneous viewers
What this means is that if you have T-1 line and you have 10 viewers all viewing a 240x180 pixel video feed at 5 frames per second, your bandwidth is maxed out. What happens if an 11th viewer logs in? This extra viewer will reduce everyone else's frame rate. So if you have 20 viewers, then each one will only see 2.5 frames per second. If you have 40 viewers, then you will have 1.25 frames per second for each user.
As for calculating audio bandwidth, iVISTA offers three options:
8-bit mono audio: 64 kilobits per second per user.
4-bit mono audio: 32 kilobits per second per user.
2-bit mono audio: 16 kilobits per second per user.
- Can I adjust the quality of the iVISTA streaming video?
You can adjust the color, brightness, resolution and compression of the video. (See Video Settings window.) This allows you to fine-tune your webcast performance. For instance, the higher the compression, the faster you can stream but the lower the video quality. Play with the settings until you find the combination that maximizes your system.
- What is the frame rate for broadcasting video?
The frame rate will vary depending on the speed of your computer, capture device, and Internet connection. For example, with a dial-up connection, your rate might be 2-5 frames per second, while a broadband connection could provide you with a rate of up to 22 frames per second.
- Can I use multiple USB cameras?
While iVISTA will allow you to install multiple cameras (and our optional multicamera option can be purchased for simultaneous webcasting of multiple cameras - click on the Preview & Purchase Extra Options button on the Control Panel), due to the way Windows handles USB devices, each camera must use a different driver and have a different chip set for iVISTA to see them as separate and distinct devices. Unfortunately, many "brand name" camera drivers are derived, or borrow heavily, from the standard Windows WDM USB driver. In these cases, Windows will see two or more cameras as having essentially the same driver, although they may have separate driver names - the result being you won't be able to use more than one of them.
Some USB cameras may have completely independent drivers that can co-exist with WDM-based drivers, possibly allowing you to use more than one USB camera. For instructions on intalling additional cameras, see Installing your camera.
- Can a viewer control various streaming functions, such as compression and brightness?
Yes. Any viewer can easily adjust the size, color, brightness, contrast, and compression levels of iVISTA-generated video, without impacting other viewers. See Changing viewing settings or Changing Audio listening settings.
- How big is the iVISTA viewer applet?
The current version is 16Kb - 50Kb (depending on whether or not audio and other modules are active).
- What size is a typical iVISTA video image? How big are the largest images?
A typical Inetcam image is either 180x120 pixels or 320x240 and takes up about 3Kb. A larger 640 x 480 image takes up about 12 Kb. The size of the video image can be adjusted by the transmitter through the settings software provided by the camera's manufacturer. (See Video Driver tab.)
- How can I embed my streaming video screen into my existing web page?
You'll find simple step-by-step directions to walk you through this process in the iVISTA manual. (See Using an existing web page.)
- Can I record streaming video with iVISTA?
Yes. See Recording video and audio clips.
- Does iVISTA work with Apple Macintosh computers?
The iVISTA server software does not currently support Apple computers. However, you can view iVISTA streaming video on the Internet from any Java-enabled browser on an Apple computer.
- Can I view the iVISTA streaming media on a wireless appliance?
Yes, you can view the iVISTA images on an Internet-connected PDA and WAP or i-mode-enabled cellular phone.
Note: The current state of wireless video is still in development, and video capabilities vary from one wireless platform to another. Check the Inetcam website, www.inetcam.com, for the latest information on wireless video viewing and software updates.
- What languages can the iVISTA streaming video applet display?
The iVISTA applet is able to determine the location and language of the viewer and automatically translate the entire applet into one of fifteen languages - English, Arabic, Chinese (both Simplified and Traditional), Dutch, Finnish, French, German, Hebrew, Korean, Italian, Japanese, Norwegian, Portuguese, Spanish and Swedish.
- Where do my visitors find my video?
Please see Accessing Internet webcasts.
- When a web browser is pointed to my Inetcam URL, it displays the following message: "Page not found - 404"
Check to make sure that iVISTA is currently running on your computer. If iVISTA is not running, then the Inetcam Web Server is not running. If iVISTA is running and you still get this message, see The Web Services tab for information on starting and stopping the Inetcam Web Server (IWS). Also check to see that you're not behind a firewall or router.
- When a web browser is pointed to my Inetcam URL, it displays a message reading, "No content is available at this time."
This indicates that you have iVISTA running on your machine, but are not currently webcasting. See Start/stop webcast.
- When visitors go to my iVISTA URL, their browser displays the following error code and no video: "Load Inetcam.class not found."
This error code is displayed when the Java applet is being run from a location other than the iVISTA webcast directory. You need to add a codebase line in order to run the applet - see Using an existing web page.
- I can see my iVISTA VideoWebPage on my computer, but nobody else can see it.
1. It is possible your Internet service provider (ISP) is blocking port 80 to prevent customers from running a web server. (This is particularly common with cable companies.) Click the Tool icon in the bottom right corner of your iVISTA Control Panel. Go to the Web Server tab, then click on Configure Web Server. Change the port number to one not being blocked by your ISP - 8080 or 8888 are good choices. Click Apply.
Note: Viewers will have to add a colon (:) and the port number to your WebPageAddress in order to view your page. (Example: http://your-name.inetcam.com:8080.)
2. You may be behind a network firewall or router which is blocking port 80 as a security measure. This is common in workplace environments. Ask your network administrator to port-map port 80 for you, or see the iVISTA online Help file, and look for routers and firewalls under Troubleshooting.
- My viewers can see my web page, but can't view my video.
If your viewers are having trouble accessing your video, have them visit www.inetcam.com. If they can see the video on the Inetcam home page, they should be able to see your video as well. If they cannot view video from www.inetcam.com, or see an image that looks like our logo that does not change, it may be that they don't have Java enabled in their browser.
To try to fix this, first make sure they have a browser capable of running the Java Virtual Machine version 1.0.1 or newer. These include Microsoft's Internet Explorer 4.x and 5.x, Netscape 3.x, 4.x and 6.x, and Opera 5.x.
If they have a browser in the above list and can't see your video or the Inetcam home page video, then they may need to enable Java. (If your viewer gets an error when trying to click on the play button to your streaming video in a pop-up window, they probably do not have JavaScript enabled within their browser.)
To enable Java in Internet Explorer:
Click on Tools on the pull-down menu. Go to Internet Options and click on the Advanced tab. Scroll down the list until you see JavaVM listed. Check the box labeled JIT compiler for virtual machine enabled.
If you do not see JavaVM in your list, you will need to go to www.microsoft.com and download it.
To enable JavaScript in Internet Explorer:
Go to Tools on the pull-down menu. Select Internet Options, then Security, then Internet, then Custom Level. Scroll almost all the way to the bottom. There is a section labeled Scripting of Java applets. Check the radio button next to Enable (Active Scripting) under that option. Close all Internet Explorer windows and re-launch the program for the changes to take effect.
To enable Java in Netscape:
Click Edit on the pull-down menu. Select Preferences, then Advanced. Check the box labeled Enable Java.
To enable JavaScript in Netscape:
Click Edit, Select Preferences, then Advanced. Check the box labeled Enable JavaScript.
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