Even when referring to a wide range, the field of view can vary.
In either case, standard ring lights (approximately φ60 to φ70mm) are not suitable for evenly illuminating a wide area.
Ring lights of this size are suitable for use with microscopes, magnifying devices, or cameras when a macro lens is used.
To illuminate a relatively wide field of view, a large-diameter ring light is more suitable.
Left: Standard ring light Right: Large-diameter ring light
The illumination difference is shown in the photo below.
When using a large-diameter ring light and our camera stand, a simple setup like the one below can also be used.
Attach it to a magnetic stand and slide it under the camera stand.
To evenly illuminate a larger area (A4 size), a slightly larger light source is required.
However, if some variation in illuminance is acceptable, you can also use ambient lighting or a desk lamp for office work to take photos.
If the field of view is wide, there is likely sufficient brightness, so this method may also be a viable option.