Tutorial ISO-Noise and how it effects shutter speed

Stevies

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ISO-Noise and how it effects shutter speed - ISO-Noise and how it effects shutter speed

I hope the pro's don't mind me posting her but I thought it might be off benefit to some people who don't know what noise is. Please excuse me using two posts - I ran into the 6 image limit.

I decided to do an update to my website yesterday and set up an ISO-Noise demonstration to show the effect it has on photographs and in particular how shutter speed can be increased by pushing the ISO up but at the expensive of the photograph quality. ISO noise is the apparent grain the photographs –...
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Read more about this resource...
 
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These are the last four images from the above thread.


I should add that I have been really impressed with the noise control with the 6D compared to the 60D - before my limit was 3200 and now it is 12,800 and that's not to say depending on the colours that a photograph at 25,600 wouldn't be usable.

Stevie
 
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Does this mean you dont have to use a flash as much indoors? Would a 6400 pic on the 6d look as good as a 400 iso pic on the 60d with a bounce flash?
 
Informative post although the 6D probably isn't the best camera to use for demonstrating noise :)

I've just got my 6D and the noise handling is incredible, especially coming from a 40D which was useless at anything above 800
 
danolive1 said:
Does this mean you dont have to use a flash as much indoors? Would a 6400 pic on the 6d look as good as a 400 iso pic on the 60d with a bounce flash?
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I took two photographs this morning - one at 6400 and the other with a bounced flash at 400. I'll post them later when I get home.
ecoleman said:
Informative post although the 6D probably isn't the best camera to use for demonstrating noise :)

I've just got my 6D and the noise handling is incredible, especially coming from a 40D which was useless at anything above 800
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You're probably right I'd a 60D before and it was unusable about 3200. Must say I think it was worth the upgrade almost for noise performance alone.

Thanks

Stevie
 
danolive1 said:
Does this mean you dont have to use a flash as much indoors? Would a 6400 pic on the 6d look as good as a 400 iso pic on the 60d with a bounce flash?
Click to expand...

Not really a fair comparison. Yes, higher iso can be a huge advantage indoors, but the inclusion of any additional light, can change the whole dynamic of the image.
 
johnnypanic said:
Not really a fair comparison. Yes, higher iso can be a huge advantage indoors, but the inclusion of any additional light, can change the whole dynamic of the image.
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I know just want to know how much of a differance it is in real terms.
 
Here you go as promised. Straight from the camera with absolutely no editing. The camera was set to take a large RAW and a large JPEG but to keep things the same I just used the large JPEG. I've uploaded the full size versions to Flickr for you to get a look at a real world test. They are both taken at f5.6 and 56mm from a distance of around 3 feet.

The first is the ISO-6400 version. Without any noise reduction carried out it definitely could do with some work but gives you an idea. Pass know remarks on the wee fella - smiling on demand is hard work!


Straight from the camera to show ISO at 6400 by Exif Data | Stephen Scott, on Flickr

As has already been said the bounced flash makes a huge difference to the lighting in the photograph. To be honest I quite like using bounced flash although I haven't used it much since getting the 6D. The ISO was manually set to 400 as that would be the default for flash photography anyway.


Straight from the camera to show the difference with bounced flash and ISO 400 by Exif Data | Stephen Scott, on Flickr
 
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Thanks, think i prefer the first one looks more natural to me. Your little boy looks very smart in his shirt and tie.
 
Thanks very much, as you can tell I took it in a hurry hence the laptop in the background before we headed for church. The blinds in the room where open (as in sideways but not pulled back) but the sun was at the back of the house at the time so not much natural light which is why I used such a slow shutter speed (1/40). I should have also added that the flash was set to ETTL mode. To be honest I think that without any work it makes the room look darker with the flash so would probably use the 6400 and do some noise reduction if it was a photograph I wanted to do anything with although first the background clutter would need to go!.

Thanks again and hope it has been some benefit.

Stevie
 
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