Sorry, I thought it was obvious that it is the distances from the viewer that appear to be compressed.
Take a simple example. Look through a 10x telescope or binoculars at something that is 1000 yards away. It appears to be only 100 yards away. The distance from you (to whatever you are looking at) appears to be compressed by a factor of 10.
As long as this thread is among the first ten in News, I stop reading this site.
Why is that?
You could tell if the distances appeared compressed if the objects kept their absolute sizes. Instead, the whole view is magnified. The actual compression is due to the gradual change in perspective at a distance.
Zooming in alone doesn't necessarily show compression as in my example image above, and you can see the 'compressed' perspective in wide angle shots without zooming in - just focus on the distant objects, again as in my examples above.
That is irrational nonsense. You are unwilling to accept a simple rational explanation.
I haven't seen anyone post that zooming will necessarily result in the compression effect in every situation. It may or may not depending on the distances of camera to foreground, camera to background and the amount zoomed in. There are countless videos on the web demonstrating the "lens compression" effect.
"Lens compression" is simply the appearance of background objects being closer to the foreground objects when, from a given position, you zoom in.
I provided visual counter-examples which you ignored.
I think the main point is, it's not zooming that creates the compression effect, but distant enough position of the camera.
Agreed - and someone talking again and again about "the appearance of background objects being closer to the foreground objects" is misleading - as is clearly shown when a zoomed out image is cropped to equalize the framing of those objects.
I see lens compression as described earlier when I zoom in.
You also see increased visible noise when you raise ISO, does high ISO setting create noise?
Not if you keep the exposure the same.
I meant an auto-metering mode, however it was about the visible noise: even if you keep the exposure the same, as you increase the ISO setting, it will gradually reveal more noise in the deep shadows. Although the fixed exposure should be low enough to not get highlights blown at high ISOs. But that's an off-topic I guess... :)
It looks like you have run out of ideas and are now letting your frustrations get the better of you by posting nonsense in relation to the op :-D
Anyway, the answer to your question is no for a constant exposure*.
* exposure - amount of light that struck the sensor per unit area while the shutter was open.
Even with a constant exposure it will increase the visible noise with certain constraints as in my message above.
Anyway the simple fact is, zooming in doesn't change the perspective, it only amplifies it somewhat. Same as with ISO that doesn't create but amplifies the visible noise (makes it more apparent).
This fact doesn't frustrate me.
Your question above
referred to the actual noise, not visible noise.
It's not that fact that I referred to.
The fact that
is clearly frustrating you because you are resorting to going way of topic now 🤗
In my question above I was specifically referring to the visible noise in the first sentence and you quoted it yourself.
Sorry I'm not interested in talking about my (or should I say, your) imaginary frustrations with you.
