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Thread started 18 Nov 2013 (Monday) 11:05
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High ISO issues.

 
paintcheck
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Nov 18, 2013 11:05 |  #1

Ok so this is probably just a n00b question, but I'm a little discouraged.

This weekend I shot in an indoor paintball facility where the lighting was much less than optimal, which required me to use a very high ISO (6400 to be exact). Now I understand that higher ISO's create more digital noise in the pictures and what not, but what I'm bothered about is that several of the pictures are useless because of that noise.

So, I'm curious, would a better lens help with that, or is it completely a limitation of using a high ISO?:o


Camera(s): 7D, (wishing for a 5dm3)
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palad1n
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Nov 18, 2013 11:07 |  #2

show us the sample (best if you send us a link for raw sample) and we´ll see what it can be done ;-)a


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paintcheck
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Nov 18, 2013 11:08 |  #3

I will have to do that when I get home from work tonight. Thanks for the offer to help!


Camera(s): 7D, (wishing for a 5dm3)
Lenses: Tamron 70-200 f2.8 VC / Tamron 75-300 f/4-5.6 / Canon Nifty Fifty / Tamron 10-24 f/3.5-4.5
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MakisM1
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Nov 18, 2013 11:09 |  #4

A better lens might allow you to shoot at a lower ISO (assuming that by better you get 'faster' lens, like an f2.8 or constant f4 zoom, let alone a fast prime like a f1.4).

That been said can you post an example?

Also if you shot in RAW, maybe pick up a sharp but noisy image and post the file in a Dropbox?

EDIT: I see I got beaten to the punch... You may wish to change the permission to IMAGE EDITING OK under your avatar, so we can work on your files and show the results...


Gerry
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Nov 18, 2013 11:12 |  #5

abhphotography wrote in post #16460927 (external link)
So, I'm curious, would a better lens help with that, or is it completely a limitation of using a high ISO?:o

Lenses: 18-55 EFS f/3.5-5.6 IS II / EF 55-250 f/4-5.6 III

If you were using these lenses then you definitely have room for improvement. A better lens and shooting at 2.8 would have allowed you to save one or two stops (might have gotten down to ISO1600) depending on the zoom level of your lens for each shot.


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paintcheck
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Nov 18, 2013 11:12 |  #6

MakisM1 wrote in post #16460938 (external link)
A better lens might allow you to shoot at a lower ISO (assuming that by better you get 'faster' lens, like an f2.8 or constant f4 zoom, let alone a fast prime like a f1.4).

That been said can you post an example?

Also if you shot in RAW, maybe pick up a sharp but noisy image and post the file in a Dropbox?

Yes sorry. I am looking to go into the 70-200mm f2.8 rather than my 3.x-5.x lens.

All I shoot in is RAW so I could have the flexibility to edit it if I needed to. I will post up one tonight when I get home after work (around 530pm)


Camera(s): 7D, (wishing for a 5dm3)
Lenses: Tamron 70-200 f2.8 VC / Tamron 75-300 f/4-5.6 / Canon Nifty Fifty / Tamron 10-24 f/3.5-4.5
Cards: 16GB/32Gb SanDisks CF

  
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palad1n
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Nov 18, 2013 11:12 |  #7

biggest problem of fast prime lenses is pretty shallow depth of field on F/1.4, which requires a perfect focus and thus it´s pretty problematic to shoot fast action oriented shots....


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paintcheck
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Nov 18, 2013 11:15 as a reply to  @ paintcheck's post |  #8

MakisM1 wrote in post #16460938 (external link)
EDIT: I see I got beaten to the punch... You may wish to change the permission to IMAGE EDITING OK under your avatar, so we can work on your files and show the results...

I will have to see if I can figure that out. Thanks

hes gone wrote in post #16460944 (external link)
=he's gone;16460944]If you were using these lenses then you definitely have room for improvement. A better lens and shooting at 2.8 would have allowed you to save one or two stops (might have gotten down to ISO1600) depending on the zoom level of your lens for each shot.

1600 would certainly be better than 6400 thats for sure! The lighting in this place is terrible for photography but eh, I tried ha!.


Camera(s): 7D, (wishing for a 5dm3)
Lenses: Tamron 70-200 f2.8 VC / Tamron 75-300 f/4-5.6 / Canon Nifty Fifty / Tamron 10-24 f/3.5-4.5
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huntersdad
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Nov 18, 2013 11:15 |  #9

Faster lens would help, as would slightly overexposing the shot and pulling back in PP. A little work in post can do wonders if you are patient and learn to work the file.


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gonzogolf
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Nov 18, 2013 11:16 |  #10

Noise gets magnified in the shadow areas and if you are underexposing your shots then its magnified even more. If you are in the habit of shooting a bit under and then tweaking in post, you may find the higher ISO's a lot less forgiving.




  
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MakisM1
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Nov 18, 2013 11:16 |  #11

abhphotography wrote in post #16460945 (external link)
Yes sorry. I am looking to go into the 70-200mm f2.8 rather than my 3.x-5.x lens.

All I shoot in is RAW so I could have the flexibility to edit it if I needed to. I will post up one tonight when I get home after work (around 530pm)

If you get us a properly exposed or overexposed RAW, you might be very pleasantly surprised... :D

As an example at 100% crop (left is SOOC RAW, right is NR'd):

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Underexposure will drown you with noise... but we can try...

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Invertalon
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Nov 18, 2013 11:19 |  #12

When shooting at high ISO it is critical to nail exposure. Poorly exposed high ISO images will have a lot of noise, compared to an image properly exposed or slightly over-exposed and brought down in post some. Makes huge difference. My guess? It was underexposed.


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Copidosoma
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Nov 18, 2013 11:22 as a reply to  @ MakisM1's post |  #13

Well, you could go get a cheap, used film body. Put some 1600asa film in it and your current lens. Go get some shots and get the film developed.

Then, you'll understand just how good you've got it.:cool:

Alternatively, learn to expose properly for higher iso shots (overexposing a bit is waaay better than underexposing and trying to lighten in post) and post process your images.

Also, printing images out makes much of the concern over noise disappear as you generally need to print pretty big for the noise to even show up significantly.


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paintcheck
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Nov 18, 2013 11:25 |  #14

MakisM1 wrote in post #16460958 (external link)
If you get us a properly exposed or overexposed RAW, you might be very pleasantly surprised... :D

As an example at 100% crop (left is SOOC RAW, right is NR'd):

QUOTED IMAGE
IMAGE LINK: http://s37.photobucket​.com …3001_zps645c49d​a.jpg.html  (external link)

Underexposure will drown you with noise... but we can try...

I can tell you that most of mine look like the right side of that image :(


Camera(s): 7D, (wishing for a 5dm3)
Lenses: Tamron 70-200 f2.8 VC / Tamron 75-300 f/4-5.6 / Canon Nifty Fifty / Tamron 10-24 f/3.5-4.5
Cards: 16GB/32Gb SanDisks CF

  
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MakisM1
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Nov 18, 2013 11:30 |  #15

abhphotography wrote in post #16460980 (external link)
I can tell you that most of mine look like the right side of that image :(

If you think the right side of the image is noisy, I don't think anybody can help...??? That was a ISO 12800 by the way...


Gerry
Canon 5D MkIII/Canon 60D/Canon EF-S 18-200/Canon EF 24-70L USM II/Canon EF 70-200L 2.8 USM II/Canon EF 50 f1.8 II/Σ 8-16/ 430 EXII
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High ISO issues.
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