My logitech 120 webcam was working perfect until today, for some reason the picture became very blurry, can't fix it, please help

Step 1:
A webcam is first and foremost a camera that uses a lens to gather light reflected by an object. There are a number of reasons why the image captured by the webcam can be blurry, all of which can be remedied. Supplies from a photography store or hobby shop, along with items that most people already have in their homes, are needed. The webcam does not need to be disassembled in any way in order to obtain a sharp and clear image.

Launch the webcam's video program by selecting it from the "Start," and the "All Applications" menu. Aim the webcam towards you so that you can see the blurry image presented in the program's video window. Rotate the knurled focus ring that surrounds the lens at the front of the webcam until the image is sharp; if there is no focus ring, position the webcam closer or farther from you until the video image is sharp. Blow off the lens at the front of the webcam with compressed air. Moisten the end of a cotton swab in photo lens cleaning solution. Wipe the lens with the moistened end of the swab, beginning at the center and rotating in a circle until you reach the outer edge. Wipe the lens dry with a lens tissue in the same manner as was just done, to remove the contaminants that caused the blurry image. Launch the webcam video program that is on the hard drive. Select the "Advanced" or "Options" tab at the top of the program's main window -- depending on how the program is set up to bring up a settings window. Reset the "Sharpness" control to 65 percent of the total possible, using a slider control or entering "65" in a text field. Click the "Apply" button at the bottom of the window, followed by the "OK" button to sharpen the image transmitted by the webcam.

Some webcams have a focus ring around the lens that you rotate others rely on the software for a good focal length
Launch your Logitech toolbar from the desktop or from 'All programs'
Click on the 'Quick Capture' menu (2 photo frames picture) to start your webcam.
With the webcam running click on the 'Settings' menu (2 gearwheels picture)
Here you can adjust all your settings to achieve the best image

Some webcams have a focus ring around the lens that you can rotate to achieve the sharpest picture.
Some rely on software alone
You have a Logitech webcam, so you can launch the dedicated webcam toolbar and adjust the settings from there as well - click on the 2 gear wheels for the Settings.
Make sure no Video Effects are selected ( the two theatre masks on the toolbar )

possible reason the lens is dirty !!! o just out of focus.

clean the lens with really soft cloth .or just turn the round ring at the front of the camera side to side until it gets better.

95% of the times it works

On all webcams and also on other cams you have a ring around the lens. This ring is meant to focus the camera on to the object. start the webcam and rotate the ring. Clockwise and anticlockwise. Whichever direction get you to a focussed image, stop there.

The black face plate. Turn to the left and the right untill the picture become clearer. You will need to manually focus the cam

TRY TURNING THE RING IN FRONT BY LENS CLOCKWISE OR COUNTER CLOCKWISE,RICHARDM69

USE THE CONTROL PANEL TO ADJUST RESOLUTION.NO CONTROL PANEL?DOWNLOAD FROM FACTORY WEB SITE.RICHARDM69

Try adjusting the camera lens by rotating it from Left to Right. Hope this helps. Bud

okay this is what u all do XD

u kno the white part around the camera, like by the lens...
turn that counterclockwise, at first it wont move.. but eventually it will u just gotta try

well anyways hope that helps u guys out :]