18 Photography Apps Each Smartphone Photographer Should Consider Light Pollution Map allows you to easily locate dark sites where the sky will not be affected by light pollution, allowing the best observance, star gazing, and photography of the night sky.
how you can control Depth of Field. It shows the best Aperture for Portraits and the best Aperture for Landscape photos. It also looks at another key factor in controlling Depth of Field: Focusing Distance.: by bertha
Exposure Lock (AE-L Button) is the abbreviation stands for Automatic Exposure Lock. It is useful using automatic and semi-automatic shooting modes. Where has this information been all my photographing life? So freaking helpful it's not even funny.