I recently bought an old Canon 100-300 5.6L lens 2nd hand.
It is over 10 years old and looks like it as well....
I finally managed to remove the uv filter, which was quite a challenge.
Now I noticed that there is not only dust underneath the filter, but also underneath the glas. Kind of inside the lens I guess. Is there any way to remove that dust somehow?
I attached a couple of pictures and I cannot see any sign of the dust on them. But not sure if I will in other shots.
What do you think of the IQ of that lens? I think it is really sharp and great colors, but i never used any L lens before so can only compare it to my other lenses. What do you recon?
Is there any way to find out when the lens was manufactured? A serial number or similar?
Thank you for your help!!!!