2 fixed typos
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Those are probably hot pixels, to test this just take a picture with the lens cupcap on - this picture will come out all black except for hot pixels (dust or lens problems wouldn't show up because there's no light to see them with).

I have no idea whatswhat's the acceptable number of hot pixels and when you should send the camera to be fixed but I can tell you how to map out those pixels, this worked for my 550D (copied from my answer on another question)

http://www.slashgear.com/how-to-remove-stuck-pixel-on-your-digital-slr-2227392/

The relevant part:

Test for dead pixels : Left lens-cap on, set camera to exposure 30 seconds black-out image at variesvarious ISO settings.

Fix for dead Pixels : Set camera to perform sensor cleaning mode manually (not auto) for one minute. You only execute the function, not exactly performing the whole sensor cleaning procedure. Magically, the sensor cleaning task should shake the stuck pixels off, if not, repeat couple more times until it does. Otherwise, time to call the technical support.

I've tested for hot pixels using only ISO 100 (I'm lazy), the image clearly showed the 2 pixels that caused me to look for this + another red pixel.

After enabling the manual lenssensor cleaning function (without even taking the lens off) and waiting for a minute the first two pixels disappeared, after 2 more "cleanings" the third also disappeared.

Those are probably hot pixels, to test this just take a picture with the lens cup on - this picture will come out all black except for hot pixels (dust or lens problems wouldn't show up because there's no light to see them with).

I have no idea whats the acceptable number of hot pixels and when you should send the camera to be fixed but I can tell you how to map out those pixels, this worked for my 550D (copied from my answer on another question)

http://www.slashgear.com/how-to-remove-stuck-pixel-on-your-digital-slr-2227392/

The relevant part:

Test for dead pixels : Left lens-cap on, set camera to exposure 30 seconds black-out image at varies ISO settings.

Fix for dead Pixels : Set camera to perform sensor cleaning mode manually (not auto) for one minute. You only execute the function, not exactly performing the whole sensor cleaning procedure. Magically, the sensor cleaning task should shake the stuck pixels off, if not, repeat couple more times until it does. Otherwise, time to call the technical support.

I've tested for hot pixels using only ISO 100 (I'm lazy), the image clearly showed the 2 pixels that caused me to look for this + another red pixel.

After enabling the manual lens cleaning function (without even taking the lens off) and waiting for a minute the first two pixels disappeared, after 2 more "cleanings" the third also disappeared.

Those are probably hot pixels, to test this just take a picture with the lens cap on - this picture will come out all black except for hot pixels (dust or lens problems wouldn't show up because there's no light to see them with).

I have no idea what's the acceptable number of hot pixels and when you should send the camera to be fixed but I can tell you how to map out those pixels, this worked for my 550D (copied from my answer on another question)

http://www.slashgear.com/how-to-remove-stuck-pixel-on-your-digital-slr-2227392/

The relevant part:

Test for dead pixels : Left lens-cap on, set camera to exposure 30 seconds black-out image at various ISO settings.

Fix for dead Pixels : Set camera to perform sensor cleaning mode manually (not auto) for one minute. You only execute the function, not exactly performing the whole sensor cleaning procedure. Magically, the sensor cleaning task should shake the stuck pixels off, if not, repeat couple more times until it does. Otherwise, time to call the technical support.

I've tested for hot pixels using only ISO 100 (I'm lazy), the image clearly showed the 2 pixels that caused me to look for this + another red pixel.

After enabling the manual sensor cleaning function (without even taking the lens off) and waiting for a minute the first two pixels disappeared, after 2 more "cleanings" the third also disappeared.

1
source | link

Those are probably hot pixels, to test this just take a picture with the lens cup on - this picture will come out all black except for hot pixels (dust or lens problems wouldn't show up because there's no light to see them with).

I have no idea whats the acceptable number of hot pixels and when you should send the camera to be fixed but I can tell you how to map out those pixels, this worked for my 550D (copied from my answer on another question)

http://www.slashgear.com/how-to-remove-stuck-pixel-on-your-digital-slr-2227392/

The relevant part:

Test for dead pixels : Left lens-cap on, set camera to exposure 30 seconds black-out image at varies ISO settings.

Fix for dead Pixels : Set camera to perform sensor cleaning mode manually (not auto) for one minute. You only execute the function, not exactly performing the whole sensor cleaning procedure. Magically, the sensor cleaning task should shake the stuck pixels off, if not, repeat couple more times until it does. Otherwise, time to call the technical support.

I've tested for hot pixels using only ISO 100 (I'm lazy), the image clearly showed the 2 pixels that caused me to look for this + another red pixel.

After enabling the manual lens cleaning function (without even taking the lens off) and waiting for a minute the first two pixels disappeared, after 2 more "cleanings" the third also disappeared.