Sharboneus, E. (2014, May 16). Photography Masterclass PDF Review [DSLR camera shooting skills]. Retrieved September 16, 2015, from (http://vinamy.com/photography-masterclass/)
Convex Lenses
Chapman, F. (2011, September 30). Concave And Convex Lenses [Different Types of Lenses]. Retrieved September 16, 2015, from https://researchthetopic.wikispaces.com/What+are+concave+and+convex+lenses%3F+Part+1
Several lenses are used in DSLR cameras because unlike mirrors they allow light to pass through them and display a real image on the other side (Sandler & Ellis, 2009). The light passes through the lenses in this order; plano-convex, negative meniscus, plano-conave, biconcave, biconvex and biconvex (Chapman, 2011). This section of lenses is called the lens elements. The lens elements help the camera get a clearer picture.. The final lens the light rays pass through is convex. The light rays come together on the other side of the lens to form an image. This means the image would appear latterly inverted and upside down after passing through a convex lens. In a digital single lens reflex camera the light rays pass through a series of lenses within the camera but does not pass through a lens on the eyepiece to correct the image. Mirrors are used to fix the appearance of the image.
Kolova, I. (2015, March 21). How A Digital Camera Works [Single Lens Reflex Camera]. Retrieved September 16, 2015, from http://www.dptips-central.com/how-a-digital-camera-works.html