This tool is to create a desktop wallpaper with multiple pictures. Drag the mouse to change the loaded image positions. Changing the display magnification to 50% or 25% makes dragging easier.
A joint venture (JV) is a business agreement in which the parties agree to develop, for a finite time, a new entity and new assets by contributing equity.
LV, Light Value and EV, Exposure Value, are terms used to allow easy discussion of exposure and light without the confusion of the many equivalent combinations shutter speeds and apertures. LV refers to how bright the subject is. EV is the exposure setting on the camera. You may have seen them if you like to read the fine print of camera specifications. They are used to specify ranges of light levels for metering and autofocus.