Yes, it is possible to focus the camera lens in close range. Most cameras have a minimum focusing distance, which is the closest distance at which the lens can focus and produce a sharp image. Some cameras also have a macro mode that allows for even closer focusing on small subjects. By adjusting the focus ring or using the camera's autofocus system, you can achieve sharp focus on subjects at close range.

For landscape photography, a camera with a high resolution sensor and wide dynamic range is ideal to capture the details and colors of the scenery. A full-frame DSLR or mirrorless camera with a wide-angle lens would be a good choice for capturing the vastness of landscapes. For street photography, a compact and discreet camera with fast autofocus and good low-light performance is preferred. A mirrorless camera with a prime lens or a high-quality compact camera would be suitable for capturing candid moments and street scenes without drawing too much attention.

A macro lens is typically the best choice for product photography. Macro lenses are designed to capture small subjects with great detail and clarity, making them ideal for capturing the intricate details of products. They also have a close focusing distance, allowing you to get up close to the product for detailed shots. Additionally, a lens with a focal length between 50mm and 100mm is recommended for product photography as it provides a natural perspective and minimizes distortion.

A prime lens with a focal length between 35mm and 50mm is typically considered suitable for street photography. These lenses offer a natural field of view that closely resembles what the human eye sees, making them great for capturing candid moments in urban environments. Additionally, prime lenses are often compact and lightweight, which is ideal for street photographers who need to move quickly and discreetly. Overall, a 35mm or 50mm prime lens is a popular choice among street photographers for its versatility and ability to capture authentic moments.

For animal photography, a camera with a fast autofocus system and high burst rate is essential to capture fast-moving subjects. A good choice would be a DSLR or mirrorless camera with at least 20 megapixels for high-quality images. As for the lens, a telephoto lens with a focal length of 70-200mm or longer is recommended to get close-up shots of animals without disturbing them. Additionally, a lens with image stabilization can help reduce camera shake when shooting handheld in low light conditions.

For wildlife photography, a camera with a fast continuous shooting speed, high resolution, and good low-light performance is ideal. Cameras like the Canon EOS 90D, Nikon D500, or Sony Alpha a6600 are popular choices. When it comes to lenses, a telephoto lens with a focal length of at least 300mm is recommended to capture distant wildlife without disturbing them. Lenses like the Canon EF 100-400mm f/4.5-5.6L IS II, Nikon AF-S NIKKOR 200-500mm f/5.6E ED VR, or Sony FE 200-600mm f/5.6-6.3 G OSS are great options for wildlife photography.

The lens focus ring may not be turning due to a mechanical issue such as a jammed or broken mechanism within the lens. It could also be due to a software issue, such as the camera not being properly connected to the lens or a malfunction in the autofocus system. Additionally, the lens may be in manual focus mode, which would prevent the focus ring from turning when using autofocus. It's important to troubleshoot the issue by checking the camera and lens settings, as well as inspecting the physical condition of the lens for any visible damage. If the issue persists, it may be necessary to seek professional repair or replacement of the lens.

There could be a few reasons why your camera lens may not fit on your camera. First, ensure that the lens mount on the camera and the lens are compatible. If they are not, the lens will not fit. Additionally, check for any physical obstructions or damage on either the lens or the camera mount that may be preventing the lens from attaching properly. If everything seems to be in working order, it's possible that you may have a different type of lens mount adapter that can be used to make the lens fit on your camera.