Originally posted by audiobomber I agree that cropping a wide angle photo will give the same results as using a longer lens. That's not what I'm talking about. I'm talking about looking at the scene with your unaided eye. The scene I linked as an example. To my eye, the water tower was in the far distance. When I took the photo with the long end of an 18-250, the water tower looked a lot closer than it looked in real life. The telephoto lens perceptually compressed the depth of the scene. The distance from the train to the water tower looks unnaturally close to me when I view the photo.
Here's a little optical trick you can try:
Take a smallish sheet of cardboard, perhaps as big as 8x10 inches.
Cut a rectangular hole in it a few inches on a side.
Hold it close to your face and you have a wide angle lens.
Hold it a foot or so away and you have a normal lens.
Hold it at arms length and you have a telephoto.
You will be quite amazed at how removing peripheral vision can affect the way you see.