Red and blue dots on viewfinder and lcd


13 Dec 2019 9:30PM
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I bought a second-hand Sony alpha 58.
On the viewfinder and lcd-screen there are blue and red dots/snow. The menu is fine and the photo's seem ok.
Does anyone know what this is and if it's fixable..?
Thanks

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Tianshi_angie 5 2.7k England
14 Dec 2019 10:29AM
I think that probably your best shot at an answer would be from Sony. It needs someone here to have the same camera to be able to help you. I have always had Sony cameras and they are prone to noise - which this may be but I have never seen on the screen of any of my cameras - only lots of noise in the images themselves. It may be a connection problem somewhere in the camera - did you buy it from a reliable source? If so then you could try asking them. In case it is covered in the manual and you didn't receive one then you can download a copy from here https://www.sony.co.uk/electronics/support/res/manuals/4459/44597051M.pdf
14 Dec 2019 12:24PM
I bought it on ebay. I sent the seller an email yesterday, it's the weekend so probably an answer on monday. In the meanwhile I thought I'd ask here.

In the manual it does say :
" However, there may be
some tiny black points and/or bright
points (white, red, blue or green in color)
that constantly appear on the LCD screen
and electronic viewfinder. These points
are normal in the manufacturing process
and do not affect the images in any way."

I bought it at a nice price, this is probably why..but it was sold as fully working. This is not fully working to me.
I'll see what the seller says.

Thanks for the response.
MentorRon 1 101 Canada
15 Dec 2019 7:56PM
That's exactly what you get when the lens sees no illumination. Sort of like an unhooked TV set.
My screen illumination level is probably set a bit darker than what yours is set at, so I don't see the red as much.
I just pointed the lens into a cushion and got 1.6": yours had probably less light at 2".
What the manual refers to is the occasional "dead" or fully blown out pixel(s). They rearely occur
and are usually only visible on a 100% enlarged photo "IF" they are in the CCD/CMOS, not the viewing screen.
Just Sony trying to protect themselves warranty-wise. There have to be a defined number of dead/blown pixels
in a CCD/CMOS before the warranty is usable.
Enjoy your a58: love mine. Just recently added a Sigma 10-20 EX (used). Love both lenses (the one in photo is an 18135 SAMII.
319285_1576439772.jpg



MentorRon 1 101 Canada
15 Dec 2019 8:06PM
Forgot to mention: both the camera and the 18135 were "Open Box" purchases online.
319285_1576440331.jpg


319285_1576440513.jpg



My Sigma 1020 EX was from FaceBook Marketplace (local $140 Cdn. ).
319285_1576440672.jpg


With 5 minutes of cleaning, looked like this:
319285_1576440706.jpg


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