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I purchased a canon t7i and found the iso at 400 or higher is really grainy I had a t3 that had less noise. Any explanation?

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6ya6ya

6ya staff

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Posted on Jan 02, 2017

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Anonymous

  • 255 Answers

SOURCE: Grainy Pictures

With the iso set on auto mode it will change depending on the light and anything above iso 200 is very bad on this camera i know have the 717 and it does a lot better but if you can set the iso yourself and take it off auto allways use 100 or 200 for low grain.

Posted on Sep 13, 2005

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Anonymous

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SOURCE: camera

Please more explanation - 'The ISO'
The iso related to image quality- you appear to have it set to low quality setting which gives the maximum number of images but of low resolution. Reset it to HQ or SHQ for best results.
Check your manual re how to do this.
The is usually a more comprehensive manual of the software CD in PDF format

Posted on Dec 21, 2007

Anonymous

  • 155 Answers

SOURCE: performance of digital camera

Unfortunately this is a problem that ALL digital cameras suffer from, not just your particular model. It might be less noticeable on other cameras but it still happens.

High ISO settings and/or low light levels will result in grainy images.

Think of a TV studio. That's why they have such bright studio lights!

Matt

Posted on Mar 07, 2008

Anonymous

  • 1 Answer

SOURCE: Focusing issues with canon 40D when taking sports shots

I believe I have found my problem. I think my image stablizer on my lens is on the brink! I turn it off and got good pictures.

Posted on Jun 07, 2009

dennis bullard

  • 4090 Answers

SOURCE: grainy pictures...iso problem for olympus stylus 820

Without ISO you will not be able to take pictures.
ISO is the old ASA which is related to film speed
ISO 50 is very slow film speed and may result in blur and some grainy appearance , same as if you PUSHED ISO up to 800 in low light.

Try setting it to ISO 100 and see if that helps.

You can still select auto, but its related to either shutter or aperture priority in relation to the set film speed ( now ISO 100)

Posted on Sep 10, 2009

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1 Answer

All the pictures that I took at a cheerleading camp in an indoor football field are grainy. I had the setting on P and iso on 1600. What did I do wrong


Hi it is normal that you had setting ISO1600. If the picture come fine then something wrong. Up to 400 speed, you can see fine picture. Higher than that would come picture grainy.

Jun 05, 2011 | Canon PowerShot SX30 IS Digital Camera

2 Answers

All of my shots are grainy--really grainy. My old 8 mpx camera took beautiful, tack-sharp photos. This is 14 mpx and it looks terrible. Someone suggested that maybe the contrast needed to be adjusted ...?...


Unfortunately with higher mpxs sometimes you pay for it with higher noise levels. The smaller pixels are more sensitive and can cause noise. A couple of things you can do to help control the noise is make sure your pictures not underexposed, you may need to bump up you exposure compensation a little as long as you don't end up too bright.
You can also try to shoot with the lowest ISO setting your camera has. High ISO = NOISE!
Last you can run your photos through a noise reducing program such as"Noisware" their community edition is free. http://www.noiseware.com/download_nwsa.aspx
PS Contrast settings will do nothing for noise.

May 03, 2011 | Kodak EasyShare Z981 Digital Camera

1 Answer

Really Grainy low quality pictures with my new camera.


Try shooting with ISO value of 200 or less; or set to "Auto".

If you're missing the manual, you can get it in English, here. Page 76 briefly discusses ISO settings. This camera can select an ISO as high as 1600. ISO has to do with graininess of film - the higher the number - the more grainy the images. Higher ISOs are selected when light levels are low and no flash is used or is usable (such as when the subject is too distant). Some photographers use higher ISO settings with high shutter speeds to stop fast moving objects (like wheels on a race car). The grainier the film, the quicker it captures light. Fime grained film takes longer to capture light.

Generally, pictures taken outdoors in sunshine look best when ISO is 100 or less. 100 is a good choice for well lit indoor pictures, too; but may be better with an ISO of 200. ISO works like this:

If a picture can be properly exposed with an ISO of 100 in 1/15 sec, it would require only 1/30 sec at ISO 200, or 1/60 sec at ISO 400. When you double the ISO value, the exposure times are halved. What's the big deal about 1/15sec, 1/30 or 1/60 sec you might ask? Easy! the picture will probably be blurry at 1/15 and even 1/30 sec exposure time, due to the camera recording even the slightest movement of your hands. You'll need to supply a tripod or do something else (such as increase the size of the opening of the aperture or f-stop) to get a properly exposed image.

I hope this helped - if it isn't an ISO problem - let me know. Good luck!

Dec 10, 2010 | Canon PowerShot SX30 IS Digital Camera

1 Answer

It takes very grainy pictures in cloudy weather and at dusk. Even a very basic digital camera won't have this problem. Wonder if there is any solution, or it is a factory defect.


Check you ISO settings. If it is set high (400 or higher) there will be increased sensor noise. Sometimes a camera will automatically set a high ISO when the light is low. You can check the ISO in the exif data on your computer, by right clicking the file and checking the advanced properties. If the noise is excessive, send it in for repair.

Jul 05, 2009 | Konica Minolta DiMAGE A2 Digital Camera

1 Answer

Focusing issues with canon 40D when taking sports shots


I believe I have found my problem. I think my image stablizer on my lens is on the brink! I turn it off and got good pictures.

Jun 03, 2009 | Canon EOS 40D Digital Camera

1 Answer

My photos are coming out slightly grainy in low light. Have played around with ISO and aperture etc but no luck. All modes have the same problem. Camera= canon powershot S5 I5


When you use auto mode on most point and shoot digital cameras ( which includes the F717) the camera software gets to choose aperature, shutter speed, and ISO setting. When the ISO setting is used at the faster ISOs, the images get digital 'noisy' very quickly. There is a much higher noise level in consumer digicams at the higher ISOs, because the sensor chip is much smaller than in the digital SLRs. F2.0 suggests yoiu are shooting at the maximum aperature of your lens and that the light is pretty dim.
If you learn to use your camera in the Av ( aperature preferred) mode at ISOs of 50 or 100, most of the noise you are describing will disappear. The camera should take very nice images at ISOs less than 200.

Consult your manual on aperature preferred or manul setting of the ISO speed

Nov 20, 2008 | Canon Cameras

1 Answer

Grainy pics


When using sport mode the ISO jumps to 400 or more, and this is very noticeable in the grain of the picture. S3 renders good detail up to ISO 200. My advice: Set ISO to 200 in Tv mode, then set the shutter speed to 400 or something like that using the < > buttons. You have to try the best speed under the light you are. If the light is very good, perhaps you can use ISO 100 and get much better results.


Oct 23, 2008 | Canon PowerShot S3 IS Digital Camera

1 Answer

Pictures come out very grainy


Most likely, you've set the ISO value higher than necessary for most circumstances. You may have done this deliberately to catch some fast action, or you accidentally hit the ISO button without realizing it. If you reset to lower ISO settings, your graininess problem will probably disappear.

The faster the "film speed", whether you're using real film or a digital camera, the more grainy the pictures will be. ISO is the film speed. The ISO speed is set by pressing the ISO button (just above the "FUNC SET" button); it cycles thru AUTO, HI, 80,100, 200, 400, 800, 1600, then back to AUTO. If you've set the camera to AUTO on the control wheel opn the top of the camera, then you can only select ISO of AUTO or HI (which is slightly faster than AUTO).

The higher ISO settings are useful in low light conditions or to catch fast action, but those higher settings should not be used otherwise because of the increased graininess.

I hope this helps you.

Oct 19, 2008 | Canon PowerShot A540 Digital Camera

1 Answer

OLYMPUS FE-340/X 8.0 MEGAPIXESL


Hey bljack,
There are two main causes of grainy images with digital cameras. The first cause could be that the image size is set too low. I would have it set to the highest size and quality possible, because you can always reduce an image size but you can never make the image size bigger. A list of the possible image sizes are on page 21 of your camera manual. The next main reason for digital noise is having the ISO set to high. ISO is the sensitivity of the digital sensor, and the higher the sensitivity the more digital noise that will be in your images. I would very rarely have the ISO set to higher than 400. I have provided a link to the camera manual below. I hope this helps!

http://www.olympusamerica.com/files/FE-320_FE-340_Instruction_Manual_EN.pdf

Sincerely,
Allan
Go Ahead. Use Us.

May 28, 2008 | Cameras

2 Answers

Having problems with the flash\ blurred and grainy images


You should not use the flash for these shots (unless you connect a powerful external flash), it won't help you at this distance. You should use the shutter priority mode and experiment with shutter speed (no flash) to get the best result - for sports action it should probably be faster than 1/100 sec. If the light is too low you may use higher ISO setting - 200 or 400 (though higher ISO will result in grainier images, it may be your only option for blur-free photos).

Sep 07, 2005 | Olympus Camedia C-2100 Ultra Zoom Digital...

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