Format of the crop sensor / subject remotely / calibration full AOV equivalent framework
While using the crop sensor format, how can we adjust the distance of subjects to have the same field of view (AOV) in return, full frame, assuming that the current focal length in use has already been evaluated in order to take into account the standard of 35 mm film? I have the EOS Rebel SL1.
character_stops wrote:
Yes. I'm sure that the camera I have is the smallest format. That's why I think I need to experiment with several lenses to see how everyone reacts. I think that the format of my camera is 2 x 3, but I'm not completely sure. After my image size more great cameras in Ps, I chose a preset of the photo, and it converted to 2 x 3 inches. Would this mean a culture factor much more than 7.5?
Do not confuse "cropping" in Photoshop with the "culture lens/sensor factors" for your camera.
Photoshop (and many other software image) have a number of current relationships preset image for purposes of culture aspectg. Choice 2:3 in Photoshop will make the area of the whole image that is produced by your camera. Then, you can resize a number of common paper sizes... 4 x 6 inches, 6 x 9, 8 x 12 inch and 12 x 18 (or 13 x 19) inch... that all share the same images of proportions.
If you choose rather the proportions 4:5 in the truncation of software tool, some of the longest axis of the image will be deleted off the coast, but you can then resize the image to fit other common paper sizes such as 4 "x 5", 8 x 10 inch, 16 x 20 inches.
There are also a few formats of common paper who don't exactly conform to one pre-defined aspect ratios, for example 5 x 7 inch and 11 x 14 inches. These are somewhere between the two.
Your camera has a ratio of 2:3 (not 2 x 3). This has been fairly uniform among the 35mm film SLRs and was postponed to digital, too (for the large part... There are a few exceptions). The actual size of your camera sensor is approximately 15x22mm. The so-called "full frame" cameras also have a 2:3 format... is about the actual size of their 24x36mm sensor.
In other words, the same proportion (IE ' side short vs long side ") is possible in different sizes (both in the sensor format or the movie... and printing of paper sizes). Don't worry too much on this subject the reference to large format... Which seemed to have been mentioned just to demonstrate that there are all kinds of "lens factors" that you can get caught up in the calculation, but this does not really much.
Focal length does not change. 50mm is 50mm no matter what.
But a 50mm lens on a format behaves differently than it does on another format. On your camera with sensor 15x22mm is a 50mm focal length lens acts as a nice "short telephoto. Put the same focal exact on a digital point-n-shoot which has a very small sensor and it can behave as a very powerful, long telephoto. If not, put this same 50mm on a digital camera to 'full frame' and it will act as a 'standard' lens (that is, not wide or Telephoto). Or, put this same 50mm on a camera film of medium format, which has an image 60x70mm area and this will be a lens wide angle. Finally, put it on a film camera of large format as a 4 x 5 (... equal to approximately 100x125mm inches) and the same focal length of 50 mm behaves like an extreme wide-angle.
You say you have a kit lens... I guess it's a zoom. Probably an EF-S 18-55mm lens and an EF-S 18-135mm lens. You also have a 50mm 'first' (not a zoom) EF lens. If you set the zoom EF-S 50mm it will give exactly the same angle of view as the lens EF 50 mm Prime. The only difference is that the EF-S lens is specifically designed for smaller sensor cameras, while the EF lens is designed to give an image circle large enough to cover the area from a towards full frame camera.
Yes, it is true, because they do not need to produce as big a circle frame EF-S or "cultures only" lenses designed for use on small photo sensor can be smaller in size, lighter and less expensive than the lenses made to cover the full frame sensor image area.
If your kit lens is a 18-55mm, on your camera that provides a variable angle of view ranging from the wide-angle moderate standard to short telephoto. If it's a 18-135mm kit lens, which gives a little wider TV, a moderate telephoto.
I hope that makes sense!
Tags: Canon Camera
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