I bought my Logitech C920 brand new off Ebay for $42 and I love it. Im ready to upgrade to remote control zoom though



I bought my Logitech C920 brand new off Ebay for $42 and I love it. Im ready to upgrade to remote control zoom though




It's all about the upload speed. Download doesn't matter much.
I'd say:
3Mbps for HD streaming to one site and
5Mbps for splitcamming to 3-4 sites at once
The higher you can get for upload, the better.
Camming PC specs database and suggested builds ||Post your internet speedtest results .||Wanna stay safe while camming? Find out how ||||||





has anyone tried this cam?
That's the LogiTech C910, which is the 'fore-runner' of the C920 we were discussing on the previous page. Compared to the C920, the C910 has virtually the same 'high quality' fixed focus german lens, and the same resolution video sensor chip.
However, the C910 does NOT have H.264 or any other type of video encoder hardware embedded in the camera. On the 'con' side, this means that raw video is being transmitted through the USB port ... thus USB transfer speed limits the actual video stream resolution and frame rate achievable with the C910. This also means that video encoding must be done in the computer that the C910 camera is connected to. On the 'pro' side, this means that the C910 will perform better than the C920 in applications where the webcam host is NOT using H.264 encoding. This also means that encoder compression parameters are still adjustable for best moving image quality ... which isn't possible with the C920's built in hardware based compression using factory chosen compression settings.
Also the C910 has multiple levels of software zoom where the C920 has only 'in' and 'out'. However, software zoom is of limited usefulness since it degrades image quality.


So Melonie your saying that the C910 is a better purchase then? I was trying to decide which one to get-the C910 or C920. I currently have the logitech pro 9000 and I have alot of customers complaining about the cam lag and it keeps freezing. What would cause that? The cam or the laptop? Being that SM and some other cam sites use the encoder I was thinking the C920 was better for that. I just upgraded my internet recently so I don't think its my speed. What do you think?





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It's difficult to say ... could be your USB port speed, could be your computer's processing speed, could be your ISP's upload speed. I doubt that moving from the L 9000 to the C910 would make an appreciable difference in 'speed' though, since they would both be transmitting essentially the same amount of raw video to your USB port.I have alot of customers complaining about the cam lag and it keeps freezing. What would cause that? The cam or the laptop?
If your webcam host uses the same H.264 compression protocol as the C920 camera, then this unit could make a major speed improvement IF your computer's processing speed is the limiting factor AND if your webcam host is using the same H.264 compression algorithm. However, if your webcam host is NOT using the same H.264 compression, your speed could get worse since your computer would then need to do twice as much work ( decoding the H.264 from the camera into raw video, and then re-encoding that raw video using a different type of compression ).Being that SM and some other cam sites use the encoder I was thinking the C920 was better for that.


That's exactly what the guy at office max said. Speed is the problem. I have a 2.0 USB port. I contacted my internet provider and they ran tests on my modem and come to find out my modem is defective.They said it had a bad signal. So I got technician coming tomorrow to fix it so hopefully I won't have this problem anymore. I went ahead and bought the C920 because I've had the 9000 for 2+ years and some of the other features that it supposedly offers don't work like making videos and editing videos. I think its dying on me. So its time for a upgrade. The next step is saving up to get a quad core laptop so I can play second life because my laptop is not powerful enough to run the program.
I will compare the SM flash encoder H.264 settings to the C920 settings and see if I notice a difference in speed. Thanks Melonie you are very helpful!!![]()
Melonie -
I always love your tech savvy replies
So heres the question, All considered would the C910 be better for recording situations and the C920 be better for streaming?
My upload speeds are crap (working on it) but maybe force feeding less data from the cam to the next might help a bit?
v NVM you answered my question lol
Last edited by Mistress Anika; 02-02-2012 at 08:59 AM. Reason: My question was answered later in the thread





Yes, and yes. With the C910 you can determine your own compression settings ... and thus remove compression 'artifacts' from recorded video. The C920 comes with compression settings preset in the camera hardware for 'maximum' compression / minimum bandwidth requirements, which is good for live streaming but not necessarily good for 'best compromise' video quality.So heres the question, All considered would the C910 be better for recording situations and the C920 be better for streaming?


Hey ladies, Im buying a new webcam today, hopefully. And Im looking at buying the logitech webcam pro 9000. But Im wondering if this is the better one that logitech offers. Im using a laptop and honestly dont know too much about webcams. Money isnt a big issue for me if I spend $100 or a bit more on a cam no biggie, is there one that I should be looking at instead? Ive just seen many of you say this one is pretty good. I want something I can zoom without a bunch of pixely bs and HD w/ mic built in.
Thanks!!





Truthfully, you're not going to achieve a really satisfactory zoom with any of the 'mass market' webcams because they all use 'fixed focus' lenses. This is true for every model of webcam made by Logitech, and every other 'mass market' webcam as well. This forces the use of software zoom, which 'throws away' video resolution at the edges in order to make the image at the center appear larger. Or put another way, 2x zoom throws away 3/4ths of the video resolution of the original image, and 4x zoom throws away 15/16ths of the video resolution from the original image.
In order to get full resolution zoom capability, the camera needs to have a lens where the focal length is physically adjustable. One of the lowest cost options to achieve this is to purchase a camcorder ... along with the video capture card / module required to convert the analog video signal it puts out into a digital format. And the more 'elegant' option is to purchase a security camera like the Sony EVI-D100 ... which has a tiny built in motor that physically adjusts the focal length of the lens by remote control ( along with having a pan and tilt base that are also remote controlled ). But none of these options is going to come in at a price that is even remotely close to the cost of a 'mass market' digital webcam with fixed focus lens.
So, Melonie, the C910 does not have this same compression/decompression issue with loss of video quality?
I'm looking into getting an HD camcorder to use instead of my C910. Lately the webcam hasn't been producing as quality of an image as it used to, and when I read your comments on the C920, I wondered if SM changed something with their video compression and that's why the loss in quality.
On the other hand, if I go out and spend a few hundred on a camcorder and because of the way SM handles bandwidth, video feed, or whatever it is that affects quality, then won't my cam image be about the same even if I get an awesome camera? I just don't want to spend a ton of money and then find out that my video quality still stinks. I see some people on SM with AWESOME camera quality, and I would love to be able to have that.
Also, to those who are mentioning the Lifecam, I have seen people on SM who use this webcam, and their video is not at all clear. Compared to those who I know use the C910, the video quality is pretty bad.





I am hoping http://www.overstock.com/Electronics...1/product.html will have this webcam in stock soon so I Can get it.
Right now I am using a video camera I am thinking of getting a new one from ebay, which meas the video camera I have with a remote control I have to determine if I will be selling it.
plus I will have to sell my older webcams as well.
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So the 920 is much better than my built in insight? I have the MacBook pro with hd iSight but I feel the image isn't that good and a built in cam sucks for mobility and angles. I was wondering if there's any good wireless cams like the Logitech 920 that do hd





I assume that you're thinking about a camera like this ? Like the C920 it also has built-in video compression ... PLUS a wireless transmitter.
The highest resolution model they have out so far is 1280 x 800





^^^ the 'blur and slur' have more to do with video compression settings and frame rate than anything else.
Which camera does this? I've noticed other models could hold their webcam up to their computer monitor without it going blurry or fuzzy. My C910 doesn't seem to let me do this. Any help is appreciated!





check your compression settings, as well as your frame rate. Of course it could also be that your computer lacks the necessary processing power / memory capacity to 'keep up' with the amount of video information being created by the camera.



I love the c910 by Logitech...
Amazon, dirt cheap...
Also - word of advice, ALWAYS check their warehouse deals. I got my c910 with a small chip, more a ding really - for $15, free shipping. SCORE!
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With Logitech's C910 camera, compression and capture settings can be changed via the Logitech camera software. With Logitech's C920, you're basically stuck with the preset compression and capture settings of the camera's built-in encoding hardware.
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