Why all the noise??

[sparkie1263]

Why do I have so much noise in these shots?

Original
http://i305.photobucket.com/albums/nn219/sparkie1263/Sony%20A100/BeachafterStorm2copy.jpg

Crop
http://i305.photobucket.com/albums/nn219/sparkie1263/Sony%20A100/BeachafterStorm2crop.jpg

Tried to remove the noise
http://i305.photobucket.com/albums/nn219/sparkie1263/Sony%20A100/BeachafterStorm2cropNoiseRemoved.jpg

[DonSchap]

Frank ... when you say "CROP", what exactly am I looking at? It's nearly the same size as the original (75%). You might want to take another look at that ... because, I'm not really seeing all that much noise, at this resolution. SOme, admittedly, but it depends a lot on the ISO setting.

Try an 800x600 pixel 100% crop of the section of sky or beach.

Also, what settings were used in this shot? If this is a ISO-100 shot, then yeah ... if you are seeing noise, time to high-tail it to the SONY store.

[sparkie1263]

Sorry I forgot to list the settings.
speed 1/1250
IOS 200
F/5.6
Your favorite lens 18-70 Kit LOL

[sparkie1263]

Don
I also forgot to tell you I used PS Photo Tools plug-in. I used the Global Sharpening and Color Intensify.
I was told this on another forum.
The noise would have been added when the color intensify tool was used, and would have been made worse when the image was sharpened.
Here is the original image untouched.

http://i305.photobucket.com/albums/nn219/sparkie1263/Sony%20A100/BeachafterStorm2.jpg

[SONYNUT]

clean the dust off your monitor

[sparkie1263]

Are you saying there is no noise? You always leave me think when you respond to my posts. You are a man of few words. (Most of which I don't understand) LOL
Thanks Frank

[DonSchap]

You wish that was a 16mm lens, Frank. It's a 18-70mm ... LOL

[sparkie1263]

Never mind what lens how about the picture.LOL Noise or no noise

[SONYNUT]

I Can't Hear A Thing!!!!!!

[DonSchap]

Frank ... I'm not seeing the noise. Someone is being way too critical.

I still believe you would have a lot more fun with a PRIME lens ... such as the 50mm f/1.7 They are available for a reasonable price, Frank. Sharp image ... without having to buy another 17-50mm f/2.8 type lens.

[sparkie1263]

I know I don't have a good eye and like to listen to the comments to try to improve my images the best my equipment would allow. But when you are told you have too much noise in a shot that was taken at iso 100 in the middle of the day.Had me think like you that there is a problem with more than my cheap glass.
Thanks
Frank

Sonynut
I see now why you said you didn't hear anything. Need to get to know your sense of humor better.
Thank You Also

[truflip]

I see the noise mostly on the sky. They are rather monochromatic so it's not as distracting unless you point it out. Not sure if the A100 can go below ISO200, but try lowest ISO possible.

[DonSchap]

Unless less terribly mis-stated ... the A100, has a bottom floor of ISO-100 and a top stop of ISO-1600. The 1600 is a bit noisy on the CCD, which was corrected and enhanced to ISO-6400 on the A700.

Anyway ... off to the Ikebana International Flower show (http://www.chicagobotanic.org/plantshows/index.php), armed with both MACROs (90 & 180) and the 17-50mm. Outside, it's sunny and more direct than usual, today. Have a great last day of May, folks.

[sparkie1263]

Thanks Don and post some of your images

[DonSchap]

This first one is straight from the A700, other than resizing ... no post processing, no crop ... as is.

A700 w/ TAMRON 180mm f/3.5
36555
@ 180mm - f/6.7 - 1/500 - ISO-100 - Manual - Direct sunlight/outdoors

These next two, do to lighting issues, are a little more groomed.

36556
TAMRON 17-50mm f/2.8 lens @ 26mm - f/3.5 - 1/60 sec. - ISO-100 - Fill Flash


36557
TAMRON 17-50mm f/2.8 lens @ 35mm - f/5 - 1/60 sec. - ISO-400 - Fill Flash


I'm kind of in a hurry, so the others will have to wait until I get back from the party.

I figure this is a real nice start for something ...

[DonSchap]

Some of the blooms weren't ready ... and considering they had to last all weekend ... what the heck, right?

The explosion of color was fascinating, though.

36561
TAMRON 17-50mm f/2.8 lens @ 26mm - f/5.6 - 1/60 sec. - ISO-400 - Fill Flash

36562
TAMRON 17-50mm f/2.8 lens @ 28mm - f/8 - 1/60 sec. - ISO-400 - Fill Flash

36563
TAMRON 17-50mm f/2.8 lens @ 30mm - f/5.6 - 1/60 sec. - ISO-100 - Fill Flash
This arrangement seemed ... amazingly directive, in a simple way.

There was this one:
36564
TAMRON 17-50mm f/2.8 lens @ 35mm - f/3.5 - 1/60 sec. - ISO-100 - Fill Flash

Which I know you all were instantly thinking, "Doggone, Don ... that would make a great border sequence!"

Voila! . . . . . . . . . . . . . . . then, "Posterized edges"
36565 36566


Well, with a little more work on the merge, but Yeah ... you guys just might have something, there. Well, maybe not. :D LOL

Party was okay, nothing mind bending. Thanks for looking. :)

[Rooz]

don, i think you need your eyes checked. frank is right, the images do have something in them. i dont think its noise though. looks more like some sort of artefacting possibly from the compression you are using. does this noise appear on the original aswell or is it just in the resized one ?

the advice you go on the other forum is also correct. the more you fiddle with colour, saturation and particualrly sharpening, the more you degrade the IQ.

the lens you use will have nothing to do with noise. i noticed you shot that at f5.6. why is that ? typically you would want to shoot that scene with a little more DOF. maybe f8 or f11.

[DonSchap]

I had my eyes checked, Rooz ... and the news in not good. Thanks for the suggestion.

[Rooz]

lmfao
very good Mr Schap

[DonSchap]

Look ... without a 100% pixel peep crop ... seeing these "bit problems" is a little tough. Rather than make a blanket statement, I would like a 800 x 600 (or something close) 100% crop to look at.

Of course, these "one-of" shots are rather hard to criticize ... reproducability is at the heart of a noise issue. "Is it showing up in EVERY shot?" should be more of the focus when tracking it down.

There are certain settings to stay away from ... that just have "noise" written all over them. It would be wise to note these particular settings ... and use them several times, under various lighting conditions and inspect the results.

That's just my experience with it. Everyone needs some of their own.

[DonSchap]

Finishing up ... this was the walk-in greeting display for the "Ikebana Flower Show" It measures six feet wide ... and not really conducive to a table top setting.

36594
TAMRON 17-50mm f/2.8 lens @ 20mm - f/4 - 1/60 sec. - ISO-100 - Fill Flash


And then one of the other modest displays, using those very tropical island flowers, that I still don't have a name for. LOL


36589
TAMRON 17-50mm f/2.8 lens @ 26mm - f/5.6 - 1/60 sec. - ISO-100 - Fill Flash

and finally, these Irises ... a sampled border ... very intense
36578
TAMRON 17-50mm f/2.8 lens @ 45mm - f/3.5 - 1/60 sec. - ISO-100 - Fill Flash

[sparkie1263]

Very nice images Don
I went to the city and picked up my Tamron 70-300. I took some shots at my sons FDNY football game right after picking up the lens. I will post some images later they are on my other computer.
Frank

[sparkie1263]

Rooz I shot the images at a few settings. That is just the one I tried to work with. I was testing ot the Photo Tools plug-in and just picked one of the shots to work on. I will remember that for the future.
Thanks again Frank