Free Trial

Safari Books Online is a digital library providing on-demand subscription access to thousands of learning resources.

  • Create BookmarkCreate Bookmark
  • Create Note or TagCreate Note or Tag
  • PrintPrint

TTL Meters

In the early days of 35mm photography, before digital cameras stormed the photography world, a lot of cameras used simple “averaging” TTL meters, which basically look at a scene, add up all the brightness values, and find a comfortable middle ground — an average reading. The readings were a good starting point, but they rarely produced perfect exposures without a lot of fussing (and mumbling) from the photographer. Fortunately, things have changed a lot and the TTL meter in your digital camera is exceedingly sophisticated by comparison.

While all TTL light meters are reflected-light meters (that is, they measure the light after it reflects off the subject), there are three different types of meters built into digital cameras. Some cameras, such as many compact cameras, offer just a single type of meter, while other more advanced cameras (such as zoom, MILC, and dSLR cameras) have all three types. Essentially, the difference between the three types of meters is the amount of subject area that they look at to get their readings and what pattern or portion of the viewfinder they use. You can pretty much guess what areas of the viewfinder different types of meters use just by their names:


  

You are currently reading a PREVIEW of this book.

                                                                                                                    

Get instant access to over $1 million worth of books and videos.

  

Start a Free 10-Day Trial


  
  • Safari Books Online
  • Create BookmarkCreate Bookmark
  • Create Note or TagCreate Note or Tag
  • PrintPrint