Recently I picked up a well-used Canon EF 600mm f4 IS II at what I *think* is a great price. The seller was very upfront on the condition of the lens and he noted that the front rubber ring on the lens had some denting "due to leaving the lens shade on overnight." I'm not quite sure how that would be, but the lens seems to be function perfectly.
As with any supertele that I have owned I purchased the Zemlin hood + cap combo (highly recommended) but unfortunately the lens cap doesn't fit well due to the denting of the rubber ring. I was able to get the cap on with some effort and as of right now I am leaving it there in the hopes, albeit how unrealistic, that it might help push the rubber ring back into place a touch. As it stands now, the Zemlin cap is really hard to put on and remove.
Has anyone attempted to "fix" the dented front rubber bumper of a Canon supertelephoto lens? I am tempted to use a pair of soft-jaw pliers to see if I can reposition the dented portion of the ring, but I don't know what risk there is in doing so. I am not sure what the 'anatomy' of the rubber bumper is or what it connects to.
Alternatively I do have a Lenshood Hoodie XXXX that would fit over the lens's glass when the Zemlin hood is in the reversed position, but gosh, those Zemlin caps are AMAZING and I'd love to be able to use it.
Recently I picked up a well-used Canon EF 600mm f4 IS II at what I *think* is a great price. The seller was very upfront on the condition of the lens and he noted that the front rubber ring on the lens had some denting "due to leaving the lens shade on overnight." I'm not quite sure how that would be, but the lens seems to be function perfectly.
As with any supertele that I have owned I purchased the Zemlin hood + cap combo (highly recommended) but unfortunately the lens cap doesn't fit well due to the denting of the rubber ring. I was able to get the cap on with some effort and as of right now I am leaving it there in the hopes, albeit how unrealistic, that it might help push the rubber ring back into place a touch. As it stands now, the Zemlin cap is really hard to put on and remove.
Has anyone attempted to "fix" the dented front rubber bumper of a Canon supertelephoto lens? I am tempted to use a pair of soft-jaw pliers to see if I can reposition the dented portion of the ring, but I don't know what risk there is in doing so. I am not sure what the 'anatomy' of the rubber bumper is or what it connects to.
Alternatively I do have a Lenshood Hoodie XXXX that would fit over the lens's glass when the Zemlin hood is in the reversed position, but gosh, those Zemlin caps are AMAZING and I'd love to be able to use it.
Thoughts?
Oct 26, 2025 at 07:05 AM
Previous versions of jaredmizanin's message #16915713 « Dent on Canon Supertelephoto rubber bumper ring? *PICS ADDED* »
