Canong 1 1+0 How do I turn off the medium gray filter?

Medium gray filter is referred to as medium gray mirror for short, and its main functions are:

1, reduce the luminous flux, and want to use a large aperture under strong light. For example, if you want to blur the foreground and background under strong light with a large aperture, you can add a medium gray mirror;

2. If you want to slow down the shutter speed when the EV value is high, for example, if you want to shoot a dynamic (dynamic blur) effect in a very bright place, you can add a medium gray mirror.

3. When traveling or on the street, adding an appropriate medium gray mirror can prolong the exposure time, blur the background, move objects and pedestrians, and play a special role in highlighting the subject.

The middle of your painting is dark and the edge is shallow, which belongs to both the gray mirror and the stunt mirror. Using it can only reduce the exposure of the middle part of the photo and produce a stunt of overexposure of the edge, which is relatively seldom used in the digital age (it can be realized by software). The other one you mentioned also has it, but it is used less now. Use less, of course, earn less.

Supplement:

The kind of filter that reduces the light on the side and does not reduce the light in the middle can be called "hollow mirror". Its main feature is to highlight the theme and downplay the periphery.