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- Name
- Steve
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Hello folks,
I have a Nikon D750 with Nikon AF-S 70-300 VR lens and recently I purchased a Kenko 1.4 TC to stretch the reach a little. This 70-300+TC is a combination I have owned in the past, albeit on a D300 body, so thought I knew what to expect. Anyway, I have been putting off adding the TC until I was satisfied with the focus of the D750 and 70-300 alone, which I think I have now aced.
Yesterday I thought it's time to give the TC a go so set up the camera to do an AF fine tune and was somewhat surprised to find the camera struggle to get a focus on the (static) focus target. Despite trying maybe 50 times to focus through the viewfinder it never really got it right. So I thought I would check it out in live view and hey presto it hits focus straight away every time - yay!
I appreciate that the AF principle and light path is different between LV and viewfinder but none of my other lenses has this problem with the TC mounted.
There's obviously something I am missing here so was wondering if anyone can put me right and help me out or I'm gonna have to annoy the wife and spring for a 150-600 - which is what I wanted in the first place
I have a Nikon D750 with Nikon AF-S 70-300 VR lens and recently I purchased a Kenko 1.4 TC to stretch the reach a little. This 70-300+TC is a combination I have owned in the past, albeit on a D300 body, so thought I knew what to expect. Anyway, I have been putting off adding the TC until I was satisfied with the focus of the D750 and 70-300 alone, which I think I have now aced.
Yesterday I thought it's time to give the TC a go so set up the camera to do an AF fine tune and was somewhat surprised to find the camera struggle to get a focus on the (static) focus target. Despite trying maybe 50 times to focus through the viewfinder it never really got it right. So I thought I would check it out in live view and hey presto it hits focus straight away every time - yay!
I appreciate that the AF principle and light path is different between LV and viewfinder but none of my other lenses has this problem with the TC mounted.
There's obviously something I am missing here so was wondering if anyone can put me right and help me out or I'm gonna have to annoy the wife and spring for a 150-600 - which is what I wanted in the first place