Bizarre Noise On My K7 Images!!!!

Christopher M.W.T · 07-10-2009, 07:37 AM

I'm really stumped, have no idea but its coming up on all my dark images.

Here's a prime example of it, can't seem to figure out why...just my luck if I have a faulty camera lol

Attached Images

Christopher M.W.T · 07-10-2009, 07:38 AM

The photo was taken at 100 ISO in manual mode,

I have more taken in AV mode at 100iso with f2.8 and exposure set from -1 to -3 which are .... really bad.

I'll upload in a moment.

**Lowell Goudge** · 07-10-2009, 07:44 AM

what are you talking about specifically?

is it the poor representation of the background pattern on the molded plastic parts of the computer?

nostatic · 07-10-2009, 07:46 AM

the light smear on the bottom right?

Wheatfield · 07-10-2009, 07:46 AM

Originally posted by Lowell Goudge

what are you talking about specifically?

is it the poor representation of the background pattern on the molded plastic parts of the computer?

I'm not actually seeing any unusual noise, but I am having an Oscar Wilde moment with the pattern on the fabric.

**Ash** · 07-10-2009, 07:47 AM

Sorry for asking, but what noise are you referring to?
The image above doesn't have much that I can see, is terribly underexposed if anything, and doesn't really reflect the cameras abilities.

The 'reflection' of the laptop keyboard on its screen is all I see, and I don't know if that's what you're referring to.

Looks like we all answered at the same time....

Wheatfield · 07-10-2009, 07:49 AM

Originally posted by C.W Tsorotes

The photo was taken at 100 ISO in manual mode,

I have more taken in AV mode at 100iso with f2.8 and exposure set from -1 to -3 which are .... really bad.

I'll upload in a moment.

Can I ask a perhaps dumb question?

Why are you deliberately underexposing by several stops and then complaining about the quality?
It's much like crashing your car into a brick wall and complaining that the radiator started leaking.

nostatic · 07-10-2009, 07:49 AM

I think I see MJ's face. Quick, put your camera on eBay, you've got a miracle!

Christopher M.W.T · 07-10-2009, 07:52 AM

http://farm3.static.flickr.com/2465/3706575375_59a8a26be3_o.jpg

Yes I have deliberately underexposed the photo, I have never noticed this sort of noise on my K100D look around the black areas.

Christopher M.W.T · 07-10-2009, 07:52 AM

Originally posted by C.W Tsorotes

The photo was taken at 100 ISO in manual mode,

I have more taken in AV mode at 100iso with f2.8 and exposure set from -1 to -3 which are .... really bad.

I'll upload in a moment.

The part where it says DELL and the dark area on the top left hand side.

Christopher M.W.T · 07-10-2009, 07:58 AM

As a basis for comparison I took the same shot on my K100D with the same lense at 2.8, ISO 200 and EV -2.

Far better.

http://farm3.static.flickr.com/2513/3707404570_5bf08a0a05_o.jpg

Christopher M.W.T · 07-10-2009, 08:07 AM

Another really bugging me as I can't seem to make it go away, this photo was taken with the flash and cropped.

Christopher M.W.T · 07-10-2009, 08:16 AM

http://farm3.static.flickr.com/2517/3707445098_4eba75f548_o.jpg

**Ash** · 07-10-2009, 08:18 AM

I'm afraid I still don't see it.
Sorry, but even your second posted image (and the subsequent linked image) is a poor example of the K-7's potential.
Still no noise, but just nothing to see: underexposed, dull & poorly lit, minimal detail. Flash was used you say, but how? I don't see the flash's light brightening up the image. Mate, sorry but I don't get your point.

Deliberately underexposing images is not helpful unless that's the way you want them to turn out, in which case you would expose them that way in camera, not pushed by software (this minimises noise).

You really need to grasp how to take photos effectively for your critique to be valid - these photos don't show this.

slomojoe · 07-10-2009, 08:22 AM

Don't worry about pic noise in underexposed shots: CLEAN UP YOUR ROOM, man!

(Sorry for channeling your mom.)

07-10-2009, 07:37 AM	#1
Christopher M.W.T Veteran Member Join Date: Jun 2009 Posts: 1,689	Bizarre Noise On My K7 Images!!!! I'm really stumped, have no idea but its coming up on all my dark images. Here's a prime example of it, can't seem to figure out why...just my luck if I have a faulty camera lol Attached Images

07-10-2009, 08:07 AM	#12
Christopher M.W.T Veteran Member Join Date: Jun 2009 Posts: 1,689 Original Poster	Hmmm Another really bugging me as I can't seem to make it go away, this photo was taken with the flash and cropped. Attached Images

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07-10-2009, 07:38 AM	#2
Christopher M.W.T Veteran Member Join Date: Jun 2009 Posts: 1,689 Original Poster	The photo was taken at 100 ISO in manual mode, I have more taken in AV mode at 100iso with f2.8 and exposure set from -1 to -3 which are .... really bad. I'll upload in a moment.

07-10-2009, 07:44 AM	#3
Lowell Goudge Site Supporter Join Date: Jan 2007 Location: Toronto Photos: Gallery \| Albums Posts: 17,892	what are you talking about specifically? is it the poor representation of the background pattern on the molded plastic parts of the computer?

07-10-2009, 07:46 AM	#4
nostatic Veteran Member Join Date: Feb 2008 Location: socal Photos: Gallery Posts: 1,575	the light smear on the bottom right?

07-10-2009, 07:46 AM	#5
Wheatfield Moderator Join Date: Apr 2008 Location: The wheatfields of Canada Posts: 15,991	Originally posted by Lowell Goudge what are you talking about specifically? is it the poor representation of the background pattern on the molded plastic parts of the computer? I'm not actually seeing any unusual noise, but I am having an Oscar Wilde moment with the pattern on the fabric.

07-10-2009, 07:47 AM	#6
Ash Loyal Site Supporter Join Date: Mar 2007 Location: Toowoomba, Queensland Photos: Gallery \| Albums Posts: 23,920	Sorry for asking, but what noise are you referring to? The image above doesn't have much that I can see, is terribly underexposed if anything, and doesn't really reflect the cameras abilities. The 'reflection' of the laptop keyboard on its screen is all I see, and I don't know if that's what you're referring to. Looks like we all answered at the same time....

07-10-2009, 07:49 AM	#7
Wheatfield Moderator Join Date: Apr 2008 Location: The wheatfields of Canada Posts: 15,991	Originally posted by C.W Tsorotes The photo was taken at 100 ISO in manual mode, I have more taken in AV mode at 100iso with f2.8 and exposure set from -1 to -3 which are .... really bad. I'll upload in a moment. Can I ask a perhaps dumb question? Why are you deliberately underexposing by several stops and then complaining about the quality? It's much like crashing your car into a brick wall and complaining that the radiator started leaking.

07-10-2009, 07:52 AM	#9
Christopher M.W.T Veteran Member Join Date: Jun 2009 Posts: 1,689 Original Poster	http://farm3.static.flickr.com/2465/3706575375_59a8a26be3_o.jpg Yes I have deliberately underexposed the photo, I have never noticed this sort of noise on my K100D look around the black areas.

07-10-2009, 07:52 AM	#10
Christopher M.W.T Veteran Member Join Date: Jun 2009 Posts: 1,689 Original Poster	Originally posted by C.W Tsorotes The photo was taken at 100 ISO in manual mode, I have more taken in AV mode at 100iso with f2.8 and exposure set from -1 to -3 which are .... really bad. I'll upload in a moment. The part where it says DELL and the dark area on the top left hand side.

07-10-2009, 07:58 AM	#11
Christopher M.W.T Veteran Member Join Date: Jun 2009 Posts: 1,689 Original Poster	As a basis for comparison I took the same shot on my K100D with the same lense at 2.8, ISO 200 and EV -2. Far better. http://farm3.static.flickr.com/2513/3707404570_5bf08a0a05_o.jpg

07-10-2009, 08:16 AM	#13
Christopher M.W.T Veteran Member Join Date: Jun 2009 Posts: 1,689 Original Poster	http://farm3.static.flickr.com/2517/3707445098_4eba75f548_o.jpg

07-10-2009, 08:18 AM	#14
Ash Loyal Site Supporter Join Date: Mar 2007 Location: Toowoomba, Queensland Photos: Gallery \| Albums Posts: 23,920	I'm afraid I still don't see it. Sorry, but even your second posted image (and the subsequent linked image) is a poor example of the K-7's potential. Still no noise, but just nothing to see: underexposed, dull & poorly lit, minimal detail. Flash was used you say, but how? I don't see the flash's light brightening up the image. Mate, sorry but I don't get your point. Deliberately underexposing images is not helpful unless that's the way you want them to turn out, in which case you would expose them that way in camera, not pushed by software (this minimises noise). You really need to grasp how to take photos effectively for your critique to be valid - these photos don't show this.

07-10-2009, 08:22 AM	#15
slomojoe Veteran Member Join Date: Mar 2007 Location: Upstate NY Posts: 788	Don't worry about pic noise in underexposed shots: CLEAN UP YOUR ROOM, man! (Sorry for channeling your mom.)