A camera bag big or small is a must have for every photographer, regardless of the type of photography one does or the kind of equipment that they wield. It’s an accessory that might just be the most used by all photographers.
There are some photographers who prefer to carry their world on their back. Bigger bags with greater customization and maximum protection against the elements as well as resistant to bad handling is what they look for.
Some photographers are more concerned with conforming to the carry in baggage regulations on flights and they look for bags that fit those specifications.
Others look for lighter bags which they can easily haul for hours on end, especially on hiking trips. Some may be looking for the best DSLR leather bag.
Whatever your requirement may be, there are several great makes and models that you can look into and in all different budgets.