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Re: Grainy pictures at night
Low light without a flash will always cause grainy pictures unless you have a very high end camera that can shoot at very high ISO speeds like 6400 and up.
Try changing the camera from the green camera 'auto' setting to "P" and then press the Menu button (I think it's Menu) and look for the different mode settings. There should be one for Night or Night Portrait or similar, I can't recall Sony terms and I don't have one here to check sorry.
Your other option is to use the flash, try it with Red Eye turned on if possible.
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Grainy photos is due to high ISO that is needed to capture photos in low light. The solution to that problem is to use flash. Blur in low light would be due to a long shutter speed in an attempt to capture enough light to get a properly exposed photo. Again, the solution here is to use flash. Auto mode with flash on is just fine in this situation-- you could also try night mode if you wish.
If you are taking pictures in low-lighting conditions without flash, then the pictures will appear grainy. Set the ISO to a lower number (try ISO-100 to start with) and use the flash to compensate for low-light conditions.
This should improve the grainy appearance of your photos.
The reason for this is that the auto scene function chooses which ISO (light sensitivity) is needed to have a fast enough shutter speed to capture a still image (instead of a ghosted image). There is no way to change this. You can switch modes to P and specify the ISO you want to use (100-200 will give you a clear, non-grainy image, 400+ will be grainy). To capture a still image in low light with a low ISO, you need to use a tripod. Hope this helps.
If you can adjust the ISO sensitivity to a lower number then the graininess will be reduced.
However, by reducing the ISO, you will need a slower shutter speed and a larger aperture. A tripod, table or other support may be necessary.
The "noise reduction" setting on the camera can also be adjusted a step up.
Taking pictures at full resolution and fine compression will also help. ---------------------------------------------------------------------------- Overall, at least try lowering the ISO, and using the flash brighter.
grainy pictures are possibly casued by a very high ISO (sensativity) setting, you should be on 100 or lower for best normal shots. Higher settings are for low light and custom shooting in strange lighting or aperature/shutter speeds. Try full auto setting.
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.