fearless leader wrote:
I meant Internal dust, not the ones on the front elements...
I think that's impossible to get, unless it was the manufacturing error, front and back might be spots, I'd take as it could also be the camera, check your sensor, veiwfinder prisim, and other spots before I'd jump to conclusions and sending it back
It is very possible! If you look at the number of lenses I have handled on my original post.
When I mean its inside the lens, it is inside the lens.
Could you please check yours and post back what your finding will be.
This is how to do it:
1.Remove lens from camera, put the back cover of the lens, remove front cover, zoom to maximmum, in a bright room, shine a torch/flashlight on the front element, try to look at all angles by turning your lens 360 degrees. Be aware that you might see reflections, try to avoid that by changiong angles of view. First focus your eyes behind front element (here you can see if there is dust just behind the from element). Second focus yous eyes on the inner element ( the lens that moves when you zoom in or out).
2. Now second test is to remove both covers and zoom to maximum. Now point the lens to a bright light focusing your eyes inside the lens and not the front or back element. Rotate the lens avoiding reflections. Im sure you will be surprizsed of what you will see.
I think we should ask Gordon to make a video and post it in youtube because anything he says, everyone believes including me