When you are limited to using an inbuilt static camera on your iMac its no wonder you stay away from Skype for demo purposes.
This is the HD camera in my 4 year old iMac and its appalling. Apple sell you great all in one computers like the 27″ iMac but compromise on the build of the in built camera.
This is the Logitech c920 HD camera (£59 on Amazon) that works with the iMac as long as you use an APP called WEBCAM SETTINGS (£7.99 Apple APP store). I am using Mojave on OS 10.14.3 and it works fine. Dont be put off by the bad reviews and its also 5 years old.
Logitech have their own app for the camera but it does not allow you the most important feature in WEBCAM SETTINGS the ability to adjust the GAIN. In advanced settings you can also focus the C920 manually. The best news is portability, your no longer stuck with a static camera position, you also get very useful 1.5m of cable.
The Logitech c920 is a far superior picture in all ways the main one having the control over the gain and the ability to set manual focus and a good white balance.
I must thank this You Tubber Andrew Strugnell for showing me how good the c920 is on an iMac and remember this You Tube video is 7 years old.
I have been using a C920 for a few months as have video conference calls from the UK and US. Fantastic unit – used with Win 7 and Win 10 laptops using free Logitech control software – highly recommended and a great price (on Amazon UK).
Seems to me for demos, neither of cams built into a PC or usb cams you hand on the screen are going to work. I don’t see what Skype has to do with all of this other that to handle the bandwidth – we use GoToMeeting to do demos on software we manufacture. The nice thing is you can give the mouse to a participant and let them run the app on your computer. I can run at test with one cam to see how Skype works vs GoToMeeting if you like, but GoToMeeting costs $40 per month – that might be a showstopper for most unless you do a lot of demos.
It looks to me as if the big difference between those two pictures is lighting, not only different cameras….. the upper image has got some decent frontal lighting – the lower hasn’t. (Clue is the shadow of the shirt collar.)
I’d be interested to see how they compared with the same lighting.
HDW : Hi David, just for you I have updated this article with better iMac shots with the same lighting.
Good suggestion, just ordered the C920, Dell had it for $55.