Recent content by JoshuaP1993

Hello Bob, just a quick update but today I have tried again and after 2 attempts I've successfully rebuilt the lens and there is no rubbing. I believe the issue was the orientation of the collar/bushing. Thanks again for your help.

Many thanks Bob, I believe my goal now is to try and find either a diagram or image which will show the correct orientation of the bushings. I am rather reluctant to keep trying without that information because I fear that I could cause damage to them so I am going to wait until I can find this...

Images: 1. https://i.imgsafe.org/3d3bf3150f.jpg 2. https://i.imgsafe.org/3d3c96145f.jpg 3. https://i.imgsafe.org/3d3c9e3d1f.jpg I have been doing a little more testing and I have concluded that I believe it could be to do with the part shown in the first picture highlighted in blue. Hopefully...

No problem Bob, I appreciate the help. I will perhaps upload them a little later then so they will be ready for tomorrow. Kind regards, Joshua

Thanks, yes in future I would be wise to do that. There are only 3 screws w/ bushings holding in the element in question which I believe is causing the issue and as say 2 of them are different, therefore in theory I would only need to try 2 different combinations but I am quite sure that I...

Many thanks for your response Bob, I completely understand what you're suggesting. Sadly when dismantling the lens I spent hours trying to find a guide but was unsuccessful therefore everything was done from guess work, which perhaps in retrospect was a terrible idea. I should have known as I...

Hello, I have a 70-200 F4 L Lens which I have removed the front sections to clean and everything is almost perfect however there is a tiny amount of excess pressure when turning the focus ring now, specifically at 1.5m. I'm quite sure that anyone who repairs these lenses often would easily...