UNDERSTAND YOUR HISTOGRAM
In simple terms, a histogram denotes the distribution tonal values. The left side of a histogram represents shadow details, while the right side represents highlights. Mid-tones are in the middle.
Expose as far as you can to the right-hand side of the histogram.
Exposing to the right without clipping is a common practice that most photographers follow. This method captures most of the shadow and highlight details in your image. Lifting up shadows in an underexposed shot can introduce noise, which can be minimized by exposing to the right.
The amount of scene that you have in focus can differ from camera to camera. A crop sensor camera, for instance, will have a greater depth of field than a full frame camera at the same aperture setting. It’s essential that you understand your camera.
Danson suggests that when using a wide angle, instead of focusing on the hyperfocal distance to have your entire scene in acceptable focus, just focus on the distant landscape. If you miss out on exact hyperfocal distance even by a bit, your depth of field can reduce significantly. This will lead to the distant landscape being out of focus. So stop stressing out and focus directly on the distant landscape at “infinity.”