The focal length and field of view is the same for EF and EF-S lenses on the same camera. however, when reading a lens review that was made on a FF camera, note that the overall experience of that lens on a crop camera may be different (for example, I love the 70-200 on full frame, but rarely use it on my 7D as it gets "quite long" on that camera).

Do you experience a crop factor with an APS-C camera even if you are using an APS-C lens? In this video, I compare the crop factor of a full-frame camera and
Fisheyeadventures wrote: Hey everyone, I was considering for months to buy a full frame camera body. That's why I borrowed a similar full frame body (same amount of megapixels, same focal length) to compare it to my a 6300 showing it's benefits and disadvantages.

Advanced Photo System type-C ( APS-C) is an image sensor format approximately equivalent in size to the Advanced Photo System film negative in its C ("Classic") format, of 25.1×16.7 mm, an aspect ratio of 3:2 and Ø 30.15 mm field diameter. It is therefore also equivalent in size to the Super 35 motion picture film format, which has the

The corrected forumula is: FOV (rectilinear) = 2 * arctan (frame size/ (focal length * 2 * (m+1) )) Where "m" is magnification. At infinity m=0, so the first formula applies. A 50mm lens focused at infinity has a horizontal field of view of about 39.6 degrees for a full frame 35mm camera.
3 days ago · The G1 X Mark III packs a 24.2MP APS-C sensor, but unlike the fixed focal length Fuji and Ricoh APS-C cameras on this list, Canon’s top-line compact stands out by sporting a 3x 24-72mm-equivalent zoom lens. The f/2.8 max aperture is also impressive, but that’s only at 24mm - by 72mm it’s shrunk to a more modest f/5.6.
Full-frame Sensors Have a Wider Dynamic Range than APS-C. The Shallow Depth of Field of Full-frame Sensors can Help or Hurt a Photographer. APS-C Cameras Are Subject to the Crop Factor Effect. Full-frame Cameras and APS-C Cameras Differ in Size. Full-frame Cameras Are More Expensive than APS-C Cameras. I've got a question regarding focal length conversion of lens to/from APS-C sensors: Full frame lens to APS-C: 1.5(ish) X focal length. I get that since we're taking a larger area, and cropping it down by (theoretically) making the focal length of the lens longer, to bring down to the smaller sensor size of APS-C cameras For a lot of photographers, the commonly accepted definition is that a normal lens focal length is determined by the diagonal measurement of the image area, the film frame. For the 24mm x 36mm format of Full Frame, that is 43.3mm and for an APS-C frame, 30.1mm. Photo by pick-uppath via iStock. APS-C and full-frame: 2 different-sized image sensors 2. Consideration #1: Impact on camera and lens sizes 3. Consideration #2: Low light and high ISO performance 4. Consideration #3: 1.6x crop factor 5. Consideration #4: Depth of field 6. In conclusion: APS-C or full-frame camera? APS-C and full-frame: 2 different-sized image sensors Basically the change of focal length is only considered as a change of angle of view. APS-C sensor has a crop factor of 1.6 of the full frame sensor. ie Anything viewed with the APS-C sensor will be cropped 1.6 times the Full frame sensor. Hence 300x1.6 = 480 mm.
APS-C Effective Focal Lengths. Now that you know the crop factor of common sensor sizes, you can compute the effective focal length of any lens you may use. Assuming the 18mm focal length of the original topic, its effective focal length on a Canon APS-C sensor (i.e. 550D, 60D, 7D) would be: effectiveFocalLength = 1.6 * 18mm = 28.8mm, or 29mm
An APS-C size sensor measures 25.1mm × 16.7mm and consequently has a diagonal measurement of 30.1mm. That’s significantly smaller than the full-frame sensor’s diagonal (43.2mm). If you use this lens on a full-frame DSLR, the corners will be left unexposed and therefore appear very dark.
Remember, the focal length given represents the result on a full frame body. Let’s take the example of a 50mm. It doesn’t matter if it was originally designed for APS-C or FF format, the focal length of a lens doesn’t change. It is the field of view that varies depending on the size of the sensor on which you place the lens.
In addition, you get the same angle-of-view coverage from a shorter lens. For example, a 50mm focal length on my Fujifilm APS-C system gives me the same angle of view as a 75mm focal length on full frame. And last but quite possibly not least, APS-C sensor systems tend to cost less than full frame equivalents.
As the APS-C sensor is smaller than the full frame sensor (also known as 35mm), the same lens will look different depending on which type of camera/sensor you mount it. The Sony APS-C sensors are approx. 1.5 times smaller than a full frame and other manufactures (such as Canon) is 1.6 times smaller.

Full-frame has shallower DOF when comparing equivalent focal length, or in other words lenses that produce the same field of view on the different sensor. This means APS-C will have a shorter focal length, which results in wider DOF. APS-C will also have wider DOF when comparing shooting with the same focal length and achieving the same framing.

Get the full-frame (35mm) equivalent focal length and aperture for different sensor sizes. Just enter the focal length and maximum aperture of your lens and then choose a sensor size. My mm f/ lens, on a Micro Four Thirds Canon APS-C Nikon APS-C APS-H Cropped Medium Format Medium Format sensor, is equivalent to a 157.5 mm f/ 2.1 lens. The implication is that if a full-frame lens is used on a camera with an APS-C sized sensor, only the middle portion of the image circle is used and the image will appear as if it has been made by a lens with a focal length that is 1.5x longer than the actual marked length. If an APS-C format lens is used on a full-frame camera it is incapable .