Photograph above by Henri Cartier-Bresson (taken without the use of camera grids)
Henri Cartier-Bresson A Master's Ideology on Camera Grids and Composition
“Composition must be one of our constant preoccupations, but at the moment of shooting it can stem only from our intuition, for we are out to capture the fugitive moment, and all the interrelationships involved are on the move.
In applying the Golden Rule, the only pair of compasses at the photographer’s disposal is his own pair of eyes. Any geometrical analysis, any reducing of the picture to a schema, can be done only (because of its very nature) after the photograph has been taken, developed, and printed – and then it can be used only for a post-mortem examination of the picture.
I hope we will never see the day when photo shops sell little schema grills to clamp onto our viewfinders, and the Golden Rule will never be found etched on our ground glass.
If you start cutting or cropping a good photograph, it means death to the geometrically correct interplay of proportions. Besides, it very rarely happens that a photograph which was feebly composed can be saved by reconstruction of its composition under the darkroom’s enlarger; the integrity of vision is no longer there.
There is a lot of talk about camera angles; but the only valid angles in existence are the angles of the geometry of composition and not the ones fabricated by the photographer who falls flat on his stomach or performs other antics to procure his effects." - Henri Cartier-Bresson.