This chart is based on the TV standard where the horizontal to vertical ratio is 4:3. Your CMOS imager may not have this ratio. Just make sure the diagonal of the imager matches the diagonal of the lens. You might be asked, “Is this a ¼ inch sensor?” This equates to a 4mm ...
For example, a wide-angle 24 mm lens on a full-frame camera is a true 24 mm lens. However, on an APS-C format camera with a crop factor of 1.5, that same 24 mm lens acts as a 36 mm lens due to the reduced angle of view on the smaller sensor. For an in-depth look, see m...
Knowing a compound light microscope's field of view (FOV) allows you to determine the approximate size of objects too small to measure with a standard ruler. To calculate field of view, you need to know the magnification and field number of the microscope's lens currently in use. Divide th...
The real scene and the virtual image (augmented information) are imaged to the eye through the prescription lens. Figure 1: Schematic diagram of Prescription AR: (a) The side view and the beam path of the AR image of the proposed system. The prescription lens works both for vision-...
Set theBalanceslider to balance the effects of highlights, midtones, and shadows. Values greater than 0 will increase the effect of the highlights, values less than 0 will increase the effect of the shadows. Press the following keys while dragging on the color wheel to get into different modes...
Imagery based on a world elevation dataset, presuming the sensor height above sea level is correct. We are seeking one fixed value for the error - a height offset. If we can determine the proper offset to compensate for the altitude error, it will be applied to all records in the G...
Photographers often struggle to consistently attain fast and precise focus, sometimes getting it right while failing on other occasions. If that sounds like you, todays tutorial will set you free by demonstrating a pro technique that that's easy enough for anyone to employ . ...
Since we depend so much on the lenses inside those frames to improve our view of the world, you might wonder just what goes into creating them. In this article, we will talk about how the eye focuses, how a lens works, how to read a prescription, and finally, how the lens is...
The eye uses three methods to determine distance: The size a known object has on your retina - If you have knowledge of the size of an object from previous experience, then your brain can gauge the distance based on the size of the object on the retina. Moving parallax - When you move...
Try a Unique Viewpoint for Dramatic Photos on the Street & in the Field (VIDEO) Ron Leach|Sep 14, 2023| A common mistake by outdoor photographers when shooting on the street or in the field is to begin popping off photos upon arriving at a destination for fear of losing a fleeting mom...