Design and HardwareThis webcam is made from a mix of matte and glossy black plastics. The general finish is good and the C525 feels like a sturdy product.
Like Logitech's C920 top-of-the-range webcam, the sensor is positioned in the middle of the casing. However, there's no second microphone here—sound is recorded in mono rather than stereo. This might be a problem for some users, but for most people mono sound is still fine for chatting via Messenger, Skype, etc.
The fold-up stand in the C525 lets you swivel the webcam 360° horizontally while also tilting it vertically (see above). The clip-on attachment is pretty standard fare. However, the stand isn't as stable as it could be when standing on a flat surface (table, desk, etc.).
The Logitech C525 has a 720p sensor that can film video in 1280 x 720 pixels or shoot 2-Megapixel still photos (without interpolation). The internal software lets you push this up to 8 Megapixels with interpolation, but it's a pretty much pointless function.
In good light, image quality is excellent with this webcam. Plus, Logitech seems to have made progress since the C510, with an image that's less harsh and generally more pleasant. The high framerate keeps the image looking clear, even with fast movement.
In low light, the C525 webcam gives above-average performances. Like all other webcams, it's obviously less responsive in low light, but quality is still perfectly acceptable for video chat. What's more, video noise is kept in check nicely. The image can sometimes look a bit dark, but you can brighten things up by increasing the video gain and reducing exposure. Note, however, that this will lead to a slight drop in framerate and the image will therefore look less smooth.