I dont mean when for example 35mm on a crop sensor “equals” a 50mm on a full frame camera. My question is a bit weird, here we go.
So i have a 18-55mm lens (on a crop camera) and people say that 50-55mm is the focal length of the human eye. Here, my experiment comes into the play:
My camera has a 1.5x crop factor so 35mm looks like 50 mm on a full frame because of narrower field of view right? So when people say field of view of a 50mm on a full frame is the same as your eye, my first thought is 50mm on a full frame = 35mm on my camera. Then what i do is i take my camera put it on 35mm and then look at the vizor. What i expect is no zoom at all but the objects look smaller in the vizor (so fov is higher). When i put my camera at 55mm, the objects size match up with exactly what i see. But from what i learned 35mms should be like a 50mm on a full frame therefore it should match my eye.
So here comes my question:
Are the numbers of focal lengths on my lens already multiplier by 1.5x ? So do i have to subdivide the numbers to get the full frame equivalent ?
Sorry for spelling mistakes.
Oh, i understood the fov part and it makes more sense. The reason im asking this question is i want to buy a 200mm lens but should i look at videos of 300mm on a full frame or a 200mm ?
If you put a 200mm lens on your camera it will look like a 300mm lens on a “full frame” camera so if you look at videos, pay attention to the camera they’re using if they’re on a Canon 5D/R5 or Nikon D850/Z8 or Sony A7whatever, you’re going to want to see what 300mm can do in terms of field of view/zoom.