Recently I realised that my photos on small apertures yield this spot in the image (top right). Starting f/22 and it is visible.

http://imgur.com/jco1wwV

I cleaned the lens front and rear elements (blower and lens pen) properly, as well as the sensor (blower), but the spot still remains.

So it makes me wonder if it is fungus, although I do not see anything through the front element.

*the photo (f/29) is purposely edited to make the spot looks more significant.*

This post has been edited by yen2009: Jul 29 2014, 04:27 PM

should be on your sensor instead of lens.

if even after u use blower also cannot blow away the dust from image sensor, there got 2 options:

1. u use cleaning solution to clean the sensor. it not advicable if u not familiar of it
2. send to camera service center for clean it. of course, the shop will charge u

Yea, feels like sensor's problem. Thanks for the idea, I will see when to send for a service.