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NOISE! and wtf is .CR2?

PostPosted: Sat Jan 06, 2007 8:02 pm
by !~DeViNe~DaRkNeSs~!
Hi all :D
I have heard ppl say when shooting RAW images on a canon they have alot of noise pre-processing...i am finding this quite annoying atm as most images are quite bad especially of the sky.
I was wondering if there are any tricks to overcome this noise like the camera automatically does when shooting JPG :evil:
Also may i ask why when i d/l my photos from the camera they are in .CR2 format which means a program i have called RAWSHOOTER does not recognise them thus i cannot use the noise filter within this program :cry:
Please point me in the right direction 8)
Thankies in advance :D Edit: add the photo stoopid!
hopefully u can see the noise? i have played with the contrast etc quite a bit :oops:
Image

Re: NOISE! and wtf is .CR2?

PostPosted: Sat Jan 06, 2007 11:48 pm
by DaveB
!~DeViNe~DaRkNeSs~! wrote:I have heard ppl say when shooting RAW images on a canon they have alot of noise pre-processing...i am finding this quite annoying atm as most images are quite bad especially of the sky.

I'm not quite sure what you're saying you've heard "ppl" say.

I was wondering if there are any tricks to overcome this noise like the camera automatically does when shooting JPG :evil:

If you're saying that your RAW converter isn't coping with image noise then the answers are going to be either: learn to use the Noise Reduction controls in the RAW converter if it has them (ACR and LR do) or learn to use something like Noise Ninja or Neat Image. But with most EOS DSLRs those specific noise-reduction programs are really only useful for extreme circumstances! The images are typically very clean and "noise-free".

Also may i ask why when i d/l my photos from the camera they are in .CR2 format

That would be because they're in Canon Raw format (v2). They're RAW files. It would have been useful for you to tell us what camera it was, but at least the EXIF data in your image tells us that it's an EOS 400D being used at ISO 200 (typically a setup that produces very clean images).
which means a program i have called RAWSHOOTER does not recognise them thus i cannot use the noise filter within this program :cry:

I'm guessing that the reason that RawShooter (a discontinued product) isn't able to read 400D files is that the 400D was introduced after RawShooter, and it hasn't been updated. You seem to have Photoshop CS2, so if you update the CameraRaw plugin to the latest version you'll be able to read the files directly into Photoshop. Or you can use the Canon software that came with the camera.

There seem to be some "hacks" around on the 'net to get RawShooter to read 400D files, but I think you'll find Adobe (the new owner of RawShooter)'s answer will be: use Lightroom.

If you're not able to read the CR2 files, that raises the question of where is this noise that you're seeing? In JPEG files created by the camera? Or did you find something to process the RAW files with?

hopefully u can see the noise? i have played with the contrast etc quite a bit :oops:

Nope. Is that a 100% crop or a resize of the entire image? Either way, there is some "texture" in the clouds but it's hard to say if it's just from the JPEG compression of that file!


So, take a deep breath, slow down, and start again:
If you have an example of a noisy image, post a copy of it along with explanations of where you see the noise, and a description of how you've taken and processed it. Otherwise we're just guessing.

Cheers

PostPosted: Sun Jan 07, 2007 6:17 am
by !~DeViNe~DaRkNeSs~!
Hi, thanks heaps for that :)
ok by "heard ppl say" i meant i had read a thread in another forum at sum stage abit canons being quite noisy in RAW :(
thats very good to know about RAWshooter, i may try one of those other programs u suggested out and see how i go :D
yes that image was a resize of the entire image, the photo was over exposed in some areas and under in the darker areas. i used the photoshop raw processor to brighten it up a tad and strengthen the blues (yes i am slowly learning :D)
even in the RAW image it was fairly noisy in the darker areas, quite noticable anyway. it was just alittle large ...3388X2568 or sumthing similar so i thought i may get flamed for posting a huge foto :(
i used noise reducer in PS to combat it alittle but it didnt do much when put into JPG :(

Sorry for being a pain in the arse but i REALLY hate noise stemming from my previous life with my Fuji S5500!

PostPosted: Mon Jan 29, 2007 11:30 pm
by fishafotos
Post up a link to a full-res image or crop a small (noisy) area and we might be able to better help you.

PostPosted: Mon Jan 29, 2007 11:45 pm
by Oz_Beachside
maybe its Canon terminology, I cant find a "wtf" function on my nikon... :wink:

PostPosted: Wed Jan 31, 2007 11:56 am
by Grev
Oz_Beachside wrote:maybe its Canon terminology, I cant find a "wtf" function on my nikon... :wink:

I think it's the panic button, which when you're in a bad situation, you can wtf it to safety.

PostPosted: Thu Feb 01, 2007 12:43 am
by !~DeViNe~DaRkNeSs~!
Oz_Beachside wrote:maybe its Canon terminology, I cant find a "wtf" function on my nikon... :wink:

i think ull find nikons dont have decent features such as the universal "wtf" button ;)


....this topic is OLD! ...i found PS noise red and noise ninja.....although havent figured out the latter as yet :S