<p>Just noticed a "spot" on pictures from my D800, only shows up against a plain background (usually sky). Appears to be only one & as it occurs whilst using different lenses I assume it must be dirt on the sensor. Example attached (the inset is at 100%).</p>
<p>As I'm new to Nikon digital cameras just looking for some advice - how easy is it to deal with a sensor clean oneself or is it advisable to send it for a professional clean.</p>
<p>Any advice would be appreciated.</p>
<p>Martyn</p><div></div>