Noisy images from my D70 - DPChallenge Forums

01/10/2005 10:33:01 AM · #1

I have noticed lately that my pictures, when viewed in full size, are really noisy. I looked back and over the past few months, they went from nothing like this to the picture below. I don't know what happened, but I haven't really tinkered with the settings (just the normal ones)... so I don't think anything has changed. I tried turning off the Auto ISO, I tried taking the images as Vivid, sharp, soft, and normal, and they all get the same way. I tried changing ISO, Aperture, shutter speed, even shooting in all file types (RAW, JPEG etc) and sizes! Everything I could think of.

Now, I called the store I normally do all my printing with (the guy who owns it was a fashion photographer and still does work), and he gave me some tips and tried to help. He offered me more help, but I can't afford the $100 an hour fee. And if I go in and he checks out my camera... it starts the clock running. That is why I was hoping someone here could help me.

Thank you so much everyone!
*Lor

The most recent image.... untouched, just cropped.

01/10/2005 10:36:01 AM · #2

How much did you pay for the lens?

01/10/2005 10:47:36 AM · #3

Could you re-post the photo but this time with a lot less compression. There is so much jpg artifacts in your cropped photo that it is hard to see any noise that might be from the camera.

Thanks

01/10/2005 10:50:33 AM · #4

Originally posted by pitsaman:

How much did you pay for the lens?

It's a quantaray lens.. I paid $199 a little over a year ago. But this happens even with the Nikon lens that came with the D70. That is why I am concerned.

01/10/2005 10:51:16 AM · #5

Camera is not the problem,the glass is ! Cheap lens = ugly photos.
check these samples:
Sigma 105 f2.6 EX

Canon 200 mm f2.8 L

Message edited by author 2005-01-10 10:52:16.

01/10/2005 10:55:01 AM · #6

I assume we are talking about the noise in the background, cheap glass may give a blurry photo but it should not add noise.

01/10/2005 10:57:37 AM · #7

Originally posted by pitsaman:

Camera is not the problem,the glass is ! Cheap lens = ugly photos.

Even with the Nikkor lens? And like I said, it started getting worse in November... before that I didn't have the problem. Ugh

Message edited by author 2005-01-10 10:58:39.

Tamron SP AF 28-75mm f/2.8 XR Di for Canon

01/10/2005 10:59:13 AM · #8

Originally posted by scottwilson:

Could you re-post the photo but this time with a lot less compression. There is so much jpg artifacts in your cropped photo that it is hard to see any noise that might be from the camera.

Thanks

How do I do that? I am still learning PS :)

strangeghost

Canon EOS-7D

01/10/2005 11:00:44 AM · #9

It could be some setting that you inadvertantly changed. If the D70 has the option to restore all settings to default, try that and then shoot some more samples.

Originally posted by nsoroma79:

Even with the Nikkor lens? And like I said, it started getting worse in November... before that I didn't have the problem. Ugh

01/10/2005 11:06:38 AM · #10

D70 is little more noisier than Rebel, but also bad glass can cause light distortion.

Tamron SP AF 28-75mm f/2.8 XR Di for Canon

01/10/2005 11:07:37 AM · #11

Originally posted by nsoroma79:

Originally posted by scottwilson:
Could you re-post the photo but this time with a lot less compression. There is so much jpg artifacts in your cropped photo that it is hard to see any noise that might be from the camera.

Thanks

How do I do that? I am still learning PS :)

When you do a save as there will be a quality number, make this number as high as possible with out the size going over 150K. For a photo like this you should be able to go to almost the highest quality and still have it be under the 150K limit. At least this is how it works in PS Elements, which is what I have, I would believe it would be the same for PS.

strangeghost

Canon EOS-7D

01/10/2005 11:12:44 AM · #12

Originally posted by scottwilson:

For an image in your portfolio, you can submit the original, unedited photo direct from camera too. The 150K limit is only for challenge submissions. You have a 25mb limit for your portfolio.

01/10/2005 11:14:36 AM · #13

It might also be a good idea to take a photo of a blank wall with the camera way out of focus and the aperture stopped way down. This will show if there is any junk on your sensor, which could look like noise. Take a couple of photos and if you see the same noise pattern then it is most likely something on the sensor.

01/10/2005 11:14:53 AM · #14

Hey, stop to put the guilt over the poor glass!
Picture are taken with the sensor and glass.
- Glass are capable of distortion, bad focus, purple fringing and chromatic aberration.
- Sensor (CCD or CMOS) are responsible by noisy, moirÃ© and other bayer array throubles.

Then letÂ´s put the foots on the floor! Please post our picture in a 100% crop.

Message edited by author 2005-01-10 11:15:29.

01/10/2005 11:39:43 AM · #15

Originally posted by GoodEnd:

Cool down man,I don't see any sensor noise on that sample,just very soft focused distorted image.

01/10/2005 11:42:53 AM · #16

Originally posted by pitsaman:

Cool down man,I don't see any sensor noise on that sample,just very soft focused distorted image.

So, now what would cause that? Sorry for being so dumb, I just don't understand why the big difference. :)

01/10/2005 11:51:18 AM · #17

Originally posted by nsoroma79:

Originally posted by pitsaman:

Cool down man,I don't see any sensor noise on that sample,just very soft focused distorted image.

So, now what would cause that? Sorry for being so dumb, I just don't understand why the big difference. :)

If you spent 1200 $ on nice camera and you are planing to use Quantaray lenses,you well wasted your money.
Photos taken with your Sony DSC85 will be much better !

01/10/2005 11:53:17 AM · #18

Well, letÂ´s begin from the start:
1) What are noisy? Noisy is the grain that can be saw in the image at all. But particularly in the sky or solid color background, like the green background in the picture discussed here.
2) Focus, bad focus, or sharpness of the image are the lack, intentional or not, to soft the edges or whole picture. O sharpen well focused picture needs to be very high level of detais, we say that this picture is crisp.

Now that concpts are explained, letÂ´s to the facts itself:
1) This discussed picture has a bit of noise!
2) This is not the best focused picture that I saw. Nor the most crisp.
3) More crisp, more detail and more visible "clear" noise.

Now IÂ´m convinced that we are speaking (I and the Thread author), about the same thing, the noise at the image. No?

01/10/2005 11:59:44 AM · #19

Originally posted by pitsaman:

Originally posted by nsoroma79:

Originally posted by pitsaman:

Cool down man,I don't see any sensor noise on that sample,just very soft focused distorted image.

So, now what would cause that? Sorry for being so dumb, I just don't understand why the big difference. :)

If you spent 1200 $ on nice camera and you are planing to use Quantaray lenses,you well wasted your money.
Photos taken with your Sony DSC85 will be much better !

Well pitsaman, you are almost right!
A DSLR is beter than any snapshot camera by other factor than simply glass. LetÂ´s try to see it:
1) Camara Processor itÂ´s enhanced, quick and responsive.
2) Full manual control over all photo process.
3) Large pixels on the sensor giving more DoF control and expression.
4) Low level of noise.

But if you compares only with lens DSC-S85 has a good lens, but a hardware done by a walkmanÂ´s manufacturer! The most bad Quantaray lens is 100 times better, in your camera than it! (LOL)

Obvious, if you have the money, great lens are best!

Message edited by author 2005-01-10 12:04:32.

01/10/2005 12:01:52 PM · #20

Originally posted by nsoroma79:

Hi nsoroma79, can you publish all EXIF data of the original picture discussed?

01/10/2005 12:07:25 PM · #21

Originally posted by GoodEnd:

Originally posted by nsoroma79:

Originally posted by pitsaman:

Cool down man,I don't see any sensor noise on that sample,just very soft focused distorted image.

So, now what would cause that? Sorry for being so dumb, I just don't understand why the big difference. :)

Hi nsoroma79, can you publish all EXIF data of the original picture discussed?

Well, I deleted the file.... but here is the info I had on it:

shot as a jpeg
image size - 3008x2000
Metering - spot
Aperture - 6
Shutter speed - 200
ISO - 320
WB - cloudy
taken at 300mm

I can always shoot another and post the full data. There are birds everywhere on my deck! :)

Sony 24-70mm F4 Vario-Tessar T* FE OSS

01/10/2005 12:10:28 PM · #22

Originally posted by GoodEnd:

Pretty much, I just didn't understand how my images went from this:

to the one I posted. The tiger is crisp and clear... I guess that is where I was going.

Bear_Music

Samsung Galaxy S24 Ultra

01/10/2005 12:17:45 PM · #23

The original image looks like a cropped-in section to show the "noise"; the tiger looks liek an essentially uncropped full frame image; it's impossible to compare them.

Robt.

01/10/2005 12:27:15 PM · #24

Hi, nsoroma79;

I saw the tiger picture, it was crisp and clear, as you notice very well. But I noticed you shoot in the bird picture a 300mm in 1/200 ISO 320.
ISO 320 is a bit weird to me. I have read so much over DSLR hardware, include Nikon D70 and canÂ´t remember that it suports Dynamic ISO ranges, like 160, 240, 320 and other setting. But, I know that it suports ISO 3200, througt an ISO Boost feature. Do you can set up 320 manually? Your shoot the picture over (P) Program Auto setting?

Other issue is the 1 to 1 Rule. This is know that to freeze action you need to have 1/Film speed setting into the digital world I use LENS/ISO/Shutter. This concerns to the blur on the bird picture (soft focus issue noted by Pitsaman). To achieve a beter result you may use 300mm ISO 200 1/250 or 300mm ISO 400 1/500, regards the light and using apperture to compensate.