A sharp Photos as it is known with TACK SHARP which stands for Technically Accurate Cibachrome Kelvin Addons (referring to the color temperature of light in the photo) and Shutter Hyperfocal At Addons Refracted polarization. Sounds complicated.
At the bottom line is to reduce camera shake when you take a photo. And it can be tricked with tips that are packed by Scott Kelby as follows: