To clean the focusing screen on the Canon 600D, you should first remove the lens from the camera body. Next, gently blow off any loose dust using a blower brush or compressed air. Avoid touching the focusing screen directly with your fingers. If there are stubborn smudges or dirt, use a microfiber cloth lightly dampened with a small amount of lens cleaning solution to gently wipe the screen in a circular motion. Be careful not to apply too much pressure to avoid damaging the delicate screen. **

To make pictures completely blurry with the Canon EOS 600D, you can adjust the aperture to its widest setting (lowest f-stop number) to create a shallow depth of field. This will blur the background and foreground of the image. Additionally, you can also move closer to your subject and focus on a specific point, causing the rest of the image to be out of focus. Lastly, using a longer focal length lens can also help in achieving a more blurred effect in your photos. **

The pictures from the Canon EOS 600D may suddenly be dark due to a few possible reasons. One common reason could be that the camera settings have been accidentally adjusted, such as a lower exposure setting or a smaller aperture. Another reason could be that the camera's lens cap is still on or there is an issue with the lens itself, causing insufficient light to enter the camera. It is also possible that the camera's sensor or internal components may be malfunctioning, leading to darker images. **

To make pictures completely blurry with the Canon EOS 600D, you can adjust the aperture to its widest setting (lowest f-stop number) to create a shallow depth of field. This will blur the background and foreground of the image. Additionally, you can also move closer to your subject and focus on a specific point, causing the rest of the image to be out of focus. Using a telephoto lens can also help in achieving a more pronounced blur effect. **

The pictures of the Canon EOS 600D may suddenly appear dark due to a variety of reasons. It could be due to incorrect camera settings such as underexposure, a low ISO setting, or a small aperture. Additionally, it could be caused by a malfunctioning lens or sensor, or even a problem with the camera's metering system. It's important to troubleshoot and check the camera settings, as well as the condition of the equipment, to determine the cause of the dark pictures. **

To make good videos/films with the Canon EOS 600D, it is recommended to use a wide aperture to achieve a shallow depth of field and create a cinematic look. Additionally, using a lower ISO setting can help reduce noise in the footage, especially in low-light conditions. It is also important to set the white balance correctly to ensure accurate colors in the video. Lastly, using manual focus and adjusting the shutter speed to double the frame rate can help achieve smooth and professional-looking footage. **

There could be several reasons why the Canon 600D is not firing. Some common reasons include a dead battery, a faulty memory card, a problem with the lens connection, or a malfunctioning shutter button. It is recommended to troubleshoot by checking the battery level, trying a different memory card, cleaning the lens contacts, and testing the shutter button to determine the exact cause of the issue. If the problem persists, it may be necessary to seek professional repair services. **

The Canon EOS 600D is a solid entry-level DSLR camera that offers good image quality and a range of features for beginners. It has a decent 18-megapixel sensor, a flip-out LCD screen, and Full HD video recording capabilities. However, it is an older model and may not have all the latest features found in newer cameras. If you are just starting out in photography and looking for a budget-friendly option, the Canon EOS 600D could be a good choice. **