Of course, that 50mm would need to be optically designed and built a little differently for each format, in order to produce a large enough image circle to fully and evenly cover each size of film or digital sensor. On a "medium format" film or digital camera, 50mm is a wide angle lens. On a "full frame" 35mm film or digital camera, 50mm is a standard lens (not telephoto, nor wide). ![]() On a "crop sensor" camera 50mm is a short telephoto. What changes is how that 50mm "behaves" on any particular camera: 50mm is 50mm, no matter what format digital or film camera it's used upon. The easiest way I've found to think of this is.įocal length doesn't change. Once you've adopted that mindset, you need no longer concern yourself with the conversion factor and how and when to apply it. For example, a "normal" lens (i.e., one whose field of view approximates that of the human eye) has a focal length of about 31mm a 50mm lens is a mild telephoto or portrait lens a WA zoom would span from 10 to 20 mm approximately etc. It's far better to simply ignore the lens's behavior, if any, on a full-frame camera and learn, once and for all, how given lenses behave on a crop-frame camera. The 1.6 x applies to the crop sensor of the camera.not the lens.Īnd the long answer is that undertaking to apply the conversion factor every time you decide whether to use the lens is a fool's errand. The short answer is they would both have the same 1.6 x multiplier on all Canon Crop Sensor Body Cameras. Canon Rebel T4i), would they both come up with the same image or would the EF be closer to an 80mm, while the EF-S provides a 50mm image, since the lens is created with the crop factor in mind?. ![]() ![]() In other words, say you had two 50mm lenses, one EF, one EF-S and used them on a APS-C camera (ex.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |