Telephoto lens only focusing close

2 months 23 hours ago #739023 by Diogo Alves
Hello, i bought an old FD telephoto lens for my EOS Rp and it seems like it is in good condition but when I went to use it, I noticed I can only focus on really close subjects (less than around 6meters), even with infinity. I was wondering if you have any idea on how to fix this or if its normal or anything.
I'm really disappointed as I wanted to use it for moon shots and airplane shots.
The lens is a Hoya HMC 400mm f5.6 Telephoto Lens for Canon FD and I used it with an fd to ef adaptor connected to an ef-rf adaptor


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2 months 19 hours ago #739030 by Razky

Diogo Alves wrote: Hello, i bought an old FD telephoto lens for my EOS Rp and it seems like it is in good condition but when I went to use it, I noticed I can only focus on really close subjects (less than around 6meters), even with infinity. I was wondering if you have any idea on how to fix this or if its normal or anything.
I'm really disappointed as I wanted to use it for moon shots and airplane shots.
The lens is a Hoya HMC 400mm f5.6 Telephoto Lens for Canon FD and I used it with an fd to ef adaptor connected to an ef-rf adaptor

I'm not familiar with Canon lens designations, but it sounds like you have one too many adapters there, and one is acting as an extension tube.


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1 month 4 weeks ago #739200 by Rudy Silvo
How do you have your focus set from within the camera?  


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1 month 4 weeks ago #739202 by Diogo Alves
Maybe that could be the reason, if nothing works, ill try to get an FD-RF adaptor


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1 month 4 weeks ago #739203 by Diogo Alves
I tried with both AF and MF (this one first) and nothing changes. When I rotate the focus ring, I can see adjustments but I can really only focus on the close subjects (which defeats the purpose of a telephoto for me ahahah). On subjects farther than 6-7 meters, I just cant focus, it reaches infinity but its all out.


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