There are a number of used digital cameras available for anyone to purchase with a slew of different features. There are cameras which can be very expensive and do a number of different things, such as immediately change the color, tone, and resolution of the pictures that you take. Other cameras are more basic, where they simply point and shoot what the image shows.
These cameras are often quite a bit cheaper and while they still work well on a basic level, they pale in comparison with everything that the other cameras can do. The key to finding the right used digital camera comes in accessing the needs that you have which require a digital camera. Once you determine exactly what you are going to need a camera for, you can decide which camera will be the right one for you.
If you are a casual nature picture-taker you might want to opt for one of the cheaper cameras. These cameras often do not have many more features than a simple zoom and a flash. They will take a picture using a certain number of pixels, meaning that the quality of the picture will sharpen based on how many pixels it contains. The more pixels, the sharper the image will be. The downside is that these cameras often will not hold as many pictures as the larger cameras, meaning that you will have to empty your camera of pictures more often. This can be a hassle if you are at an event with a lot of picture opportunities and you have no computer access to download your photos.
The larger cameras can come with many different features, however, including the option of adding memory cards which can greatly increase the number of pictures that you can take. This can help any person take a large number of pictures that they can hold on to for some time. These cameras can also feature zoom capabilities which are much greater than one of the smaller, more inexpensive cameras, allowing you to take photos in greater detail.
Some of these cameras have an instant red-eye correction, allowing your pictures to be perfect from the beginning. Many of them have an auto-focus feature, allowing you to point and snap, not having to worry about the focus. Others will give you the option of shooting in night vision or black and white, allowing you to determine how the photo will turn out before you get to the editing stage on your computer. I personally use the Nikon D750 and I love it.
When searching for a used camera, you should first figure out how important having this camera is. If you only want it casually, you should opt for a cheaper camera with fewer features. If you want to play around with the pictures you take, there are a number of different types of software which will let you do this. However, if your goals are more suited toward taking a large number of pictures in a more professional manner, you will want to invest in one of the more professional cameras that has more features. Once you decide what your goals are with photography, you can begin to estimate what the best camera for you is.