Hi there,
I have recently taken up an interest in DSLR's and purchased a second hand D5100 with 2 lenses.
Unfortunately the first pictures that I took with it whilst on holiday all featured the mark within the red circle of the following photo everytime I oriented the camera to portrait mode.
I am inclined to think that the sensor is dirty although my knowledge is only in its inception.
Can somebody please indicate whether this is a cleaning process that I can take care of myself or whether I would have to pay someone to deal with the matter.
Cheers,
Seabeast.

I have recently taken up an interest in DSLR's and purchased a second hand D5100 with 2 lenses.
Unfortunately the first pictures that I took with it whilst on holiday all featured the mark within the red circle of the following photo everytime I oriented the camera to portrait mode.
I am inclined to think that the sensor is dirty although my knowledge is only in its inception.
Can somebody please indicate whether this is a cleaning process that I can take care of myself or whether I would have to pay someone to deal with the matter.
Cheers,
Seabeast.
