Compression is Real

Started 6 months ago | Discussions thread
kiwi2
kiwi2 Veteran Member • Posts: 3,272
Re: No
1

Mike CH wrote:

Donald B wrote:

You have displayed in the images that the background looks closer to the team using longer focal lenghts.

No, he has shown that when he moves backwards and forwards the proportions between foreground and background changes. The lens and its focal length is only responsible for maintaining framing, i.e. size of the foreground subject.

The proof is easy.

In the position where the 400mm shot was taken, also take a 100mm shot. Crop that last shot to the size of the 400mm shot. You will now see that the cropped image show exactly the same "compression" as the 400mm image.

So you cannot keep the foreground subject taking up the same area of the frame at the longer distance with the shorter 100mm focal length.

You need the longer 400mm focal length for it to work.

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