Digital Camera Technology

The book I read to research this post was Advances in Digital Camera Technology by Phil Donald which is an excellent ebook I downloaded for free from kindle. I am only going to look at a few of the most interesting features mentioned in the book but I would if anyone is interested in finding out more they sign up to kindle and download the book which at only approximately 30 pages can be read quite quick. A recent development in a lot of the more expensive cameras is the touch screen which is a bit like that on the mobile phones except obviously it's camera features. Another thing is sometimes you can change the light levels in the photo on the camera which previously you had to invest in a program like photoshop to do. Digital Cameras often take video and alot do it in HD which is called AVCHD and means you can play it back on a big HD television. Another development is faster SD cards the fastest being category 10 although your camera must be compatible and higher capacities. SD cards are commonly used to store photos. Yet another development is facial recognition where you can have the camera recognise upto 6 faces and the photo is optimized for them faces. On the really expensive cameras you have an LCD touchscreen where you can select the faces. Another thing is smile detection where ie if you are at a wedding you can set the camera to take a photo each time someone smiles although if you choose the highest setting it will be going off when someone only smiles slightly. Often cameras start at around 12 MegaPixels which means you can have large good quality prints. Finally another development on DSLR's where you can change the lens is the light meter inside it and the viewer can get dust on them affecting your photos and on some cameras if they detect dust they vibrate saving you having to wipe it.