Why are my photos noisy - discussion

sony usa

end of discussion.

That article confirms what I and many others having been saying.

That article says: "This means that adjusting the setting to ISO200 lets you shoot with the same brightness as ISO100 even in half the amount of light."

which is exactly what I have been posting earlier.

For a given scene lighting:

f/8, 1/400s, ISO 200

and

f/8, 1/200s, ISO 100

will output the same image lightness (or brightness if you like) but the ISO 200 shot will have had only 1/2 the exposure* of the ISO 100 shot and so the ISO 200 shot will have more visible noise than the ISO 100 shot.

The sensor's sensitivity had not changed at all by changing the ISO setting.

ISO does not affect the sensor's sensitivity because for a given scene lighting, aperture and shutter speed the number of photons a sensor's pixel/photosite sees at ISO 100 will be the same as the number of photons seen with ISO 6400. Raising ISO does not enable the sensor to somehow 'suck' in more photons/light from the scene. It will just make the same amount of noise more visible.

* exposure - amount of light that struck the sensor per unit area while the shutter was open
** optimal exposure - the maximum exposure* within dof and motion blur requirements without clipping important highlights.
*** under exposed - more exposure* could have been added with the DOF and blur constraints still being met without clipping important highlights.

the penny has dropped "Why are my photos noisy" your camera has taken on your personality 🤣😂🤣 its possessed. 😈

Another fairy tale tangent as described earlier.

has anyone disputed that ? now confirm the rest.

You have because you believe exposure is how light or dark an image looks on the medium the image is being viewed on.

You two still at it? Good god....

i only push the go to last post button, what's before that is old news. we need threaded view, flat view does my head in. may be that's my problem 😵🥴

noooOOOh.......I think there is more to it than that 🙂

Sure. I have doubts, however, about the efficiency. The math says that averaging noise by multiple frames is with the square root of the number of shots. You need 4 shots to half it, and then you have only one stop.

Some compact cameras do this. The one I tried it on (I believe it was the RX100) was not very efficient.

this is my little yacht i built when i was 25 and i built the house its getting lifted over when i was 22. my big yacht i built at 33.

[]
(/a/KzCHSfJG0FmUOCjGpeNnM9kgMnKolVuF9rSLDhM2tq5ZYPzyFGvrSdqOVIffbtm6/5050/?shva=1)

same on my old Olympus cameras. my a7r2 single shot was much better in every way than hi res. i got banned for posting a comparison and from there they never ended.

Maybe it is, maybe it isn't. I have no reason to believe it is. That photo could have come from anywhere. So the obvious question is "So what?"

It's just another fairy tale tangent as described earlier and nothing at all to do with this thread 😊

You know how. Arguing about offtopic and authorities. It has nothing to do with OP.

This is unnecessary. I did. And it is what it is. More than couple of threads now full of arguing, accusing, name calling, reputation damage, offtopic, flame. That´s not what users expect. Some agree with my statement, some come to my DMs to discuss just that. It is awful, and It is quite alarming that support team actually "supports" that. Awful realisation.

@MikaY They might need to get a life. Yet, terrible....

I agree. Despite the great potential there could be in two extremely different but also clearly capable and intelligent individuals arguing and going back and forth - this is not only a bad look for the two people involved, but also a little bit for the site as a whole.

Not a dealbreaker (for me), but I think it might prevent at least a couple of people from staying here or even signing up.

its friendly banter./intense debating and presenting facts. arguing is far from these discussions. some are just provoking for me to disclose my pro photography sites. but that's not going to happen. i PM my links if i think a person is worthy to see what i shoot.

I think the less oppressive environment here compared to the old site is refreshing. So people bicker. Let them. As long as it's kept at a reasonable level I don't have a problem. I can skip threads I get tired of.

It also prevents some people deliberately trying to rally moderators by starting fights in threads/subjects they know the moderators don't like, and getting the threads closed. I've seen that a lot.