which is caused by differences in refraction at different points on conventional spherical lenses which degrade image quality in large-aperture lenses

Operating Power Consumption (Energy Star): 19

A built-in sleeve allows you to store your laptop

Premium Tech AC/DC  Battery Charger For the Sony NPBX1 battery

Google Nest 3rd Generation Learning Thermostat (Brass) T3032US 4955 which is caused by differencesThis Nest Learning Thermostat memorizes your favorite temperature settings and adjusts throughout the day. You can also control this Wi Fi thermostat from your smart phone or other remote devices while youre away. Redesigned with a sleeker, thinner look for a larger, sharper display, the Nest thermostat lights up and easily displays the temperature when you enter a room. This ENERGY STAR rated thermostat saves you on your energy bills: up to 12