Thank you for being a valued part of the CNET community. As of December 1, 2020, the forums are in read-only format. In early 2021, CNET Forums will no longer be available. We are grateful for the participation and advice you have provided to one another over the years.

Thanks,

CNET Support

General discussion

ISO

May 20, 2007 2:10PM PDT

What is accepatble ISO with little noise?

i see a lot of cameras with high iso options but a lot lower noiseless, so what is acceptable now-a-days?

Discussion is locked

- Collapse -
Well, it all depends
May 20, 2007 5:15PM PDT

It really all depends, what kind of camera you have!
it these terms, likewise, i have a point-and-shoot, digital camera and then i have recently purchased and nikon d40!

There and loads of camparasons with these to unique camera.

Most point-and-shoot cameras have little iso selections. 200-500 and the most. The best one in this case has to be 300 because its not to high and not to low. But there is a little problem with image stabilisation. All you really need to know is how to hold a camera straight and subdivide movement.

So in a nutshell with point and shoot cameras, if 100-400-900 iso selections the best one to go for is the middle number.................But mabe heres a little catch
some newly cameras have a noice reduction mode, if you happen to have it then, switch it on, all blazing!

Now, if you have a slr or a more complex point-and-shoot camera this can get complicated.

It really all depends on what your shooting at.

And what is minimum and maximum iso selection is!

Lests just briefly go over the basics.

A most standard decent camera will have and iso strating with, 1.5 to 3 to 6 to 10 to 20 to 50 to 80 to 100(this is a rough guess) to 300 to 500 to 600 to 800 to 100 to 1200 to 300 to 3500 to 4000. These and rougnh selections of shudder speeds. You would probly neeever need to use 1.5 but if you do use a tripod.

Things get a little uneasy. If your taking pictures of flowers, dont use a high shudder speed cause it will look washed out and too dark, casue hardly and light is getting through the lense. Secondly, dont go too low, so much light and saturation is going through, it will have gamut(and overly flow of colour) and it will look to, random.

Its really all yo to you.

Be creative

- Aidan

>>>>>>>>>>>>Cheers<<<<<<<<<<<<

- Collapse -
Acceptable ISO - there's no such setting...
May 20, 2007 6:46PM PDT

The ability of a camera to take a photo with little or no noise is more an ability of the individual camera than the ISO setting. The different manufacturers have different methods for controlling noise at low light levels.

Some manufacturers favour in-camera image processing to reduce noise, whilst others use sensors and image processors that generally produce a lower inherent noise level, but don't process the image to reduce noise. The net result is that some may have more visible noise, but the others may have lost fine detail due to the processing, but you always have the option of doing your own post-processing to reduce or remove noise. Of course, You will also find that the noise levels are much lower with DLSRs (in general) than with P&S models.

If noise levels are a critical factor I would recommend doing some low light testing with your shortlisted models. As most camera shops are not open during hours of darkness try shooting indoors with no flash by pushing the ISO levels to 800, 1600 and 3200 if the camera supports them.

Paul

- Collapse -
But what hes trying to say...
May 21, 2007 5:28AM PDT

Yess but what he is trying to say, is "which is the best iso settings to ruduce noise" Pretty much every camera is fitting with a incresenly large or small selections of iso.

Yess you are right. some cameras do deal with noise with their unique functions.

But every cameras have an high iso in which noise occures, there will sill be noise though,

because remember the ccd dosent controll the light it only, processes it.

But i quess you are right in a sense

- Aidan

>>>>>>>>>>>>Cheers<<<<<<<<<<<<<

- Collapse -
Acceptable ISO
May 21, 2007 6:30AM PDT

Ultimately, it depends on you. Some people can tolerate digital noise more than others. What is acceptable to me may not be acceptable to you. All cameras will have noise at high ISO, some do better than others. D-SLR is still doing a much better job than most PS cameras. But don't judge the high ISO performance of a camera by how high the ISO option it offers; there is no correlation between the two. Many PS cameras offer high ISO options but cannot perform at a decent level beyond ISO 200, so it is more of a marketing scheme (or scam) than a real technological advance/breakthrough.

- Collapse -
Acceptable ISO - you decide
May 21, 2007 6:03PM PDT

The trouble with this is that it's up to each of us to decide what's acceptable, and then find out which camera(s) can satisfy our standards. I have a friend who uses ISO 800 on his EOS 400D (Rebel XTi) and only lowers it if he needs particularly fine detailed images.

Personally I prefer to shoot with as low an ISO as possible with my EOS 5D even though the noise levels are amazingly low up to 800 and even 1600 is pretty good.

All of this brings us neatly back to a trip to a local camera shop to take some test photos with the shortlisted models.

Ultimately this is the only way to make your own judgement before you buy. Unless anyone knows of a website containing test shots at different ISO settings as part of their reviews.

- Collapse -
ISO comparison
May 22, 2007 8:02PM PDT
www.dpreview.com often compares photos at different ISO settings among competitive cameras.