I cannot set an F stop of 4.0 using my EOS 60D with my Canon EF 75-300mm 1:4-5.6 IS lens.

[jag1213]

I cannot set an F stop of 4.0 using my EOS 60D with my Canon EF 75-300mm 1:4-5.6 IS lens.  I have tried changing the shutter speed and the ISO and I still cannot set an F stop of 4.0.  Any recommendations?  Thanks in advance.

[TCampbell · Accepted solution]

You would need to contact Canon for repair options and prices.  All we know at this point is that it's not correctly reporting it's focal length to the camera -- we don't know why.  It should be serviceable.

You would need to tell them that the lens always reports 300mm as the focal length even when set to other focal lengths.

[jag1213]

Thank You very much for your help.

[ebiggs1]

Way to go TCampbell. You get the "Gold Star" for the day.