Mary Burgy Posted June 4, 2018 Share Posted June 4, 2018 I am trying to determine if lens has an issue or if it's me... I normally focus on front eye... I am not sure how close I was 85 mm... zoomed in on screen shot to show eyes... is that really that large of a plane difference? Link to comment Share on other sites More sharing options...
Damien Symonds Posted June 4, 2018 Share Posted June 4, 2018 All I know is that you can't use this. For actual technical discussion of the problem, we'll have to wait for @Brian. 1 Link to comment Share on other sites More sharing options...
Mary Burgy Posted June 4, 2018 Author Share Posted June 4, 2018 I know.. I just wanted an expert opinion on the "why" it happened. It may just be DOF Link to comment Share on other sites More sharing options...
Damien Symonds Posted June 4, 2018 Share Posted June 4, 2018 In that case, I'll move this post into Brian's area. 1 Link to comment Share on other sites More sharing options...
Mary Burgy Posted June 4, 2018 Author Share Posted June 4, 2018 Thanks - Brian, I think I focused and recomposed and I assume it caught the wrong eye. But I didn't think I needed to worry at this DOF but maybe I was closer than I thought.... Link to comment Share on other sites More sharing options...
Brian Posted June 5, 2018 Share Posted June 5, 2018 I don't think this is a DoF Issue. The camera seems to be focused on the wrong eye. By all accounts, this photo is backwards as far as the focusing-dept. is concerned. Two things come to mind: The wrong AF point was used, or the camera over-ruled your selection. Sometimes things get bumped and DSLR cameras typically have a setting that allows you to select an AF point, but if it finds something easier to lock-on to, it will use that area. So check your settings. Focus and recompose can bite you in this way. I know lots of Canon owners, especially 5D Mark II owners that focus and recompose a lot. If you move an inch or two more than you are supposed to, unpredictable things can happen. I feel that this is the case with this photo. It looks like you are using f/3.5 and are standing fairly close shooting at 85mm. Yes, the DoF is normal in this case; one eye will be in focus, the other won't be in focus. To get both, you'll need to stop down to at least f/5.6...maybe even use f/8 on where you are standing. Link to comment Share on other sites More sharing options...
Mary Burgy Posted June 5, 2018 Author Share Posted June 5, 2018 Okay, thanks. I normally don't focus and recompose but don't trust my outer focal points so was trying something new. I am not use to this focal length so there will be a learning curve I guess. Link to comment Share on other sites More sharing options...
Brian Posted June 7, 2018 Share Posted June 7, 2018 On 6/5/2018 at 12:45 PM, Mary Burgy said: don't trust my outer focal points Not all focus points are created equal. What camera body are you shooting with? Link to comment Share on other sites More sharing options...
Mary Burgy Posted June 7, 2018 Author Share Posted June 7, 2018 Canon mark iv and I have limited it tO cross type. Link to comment Share on other sites More sharing options...
Brian Posted June 8, 2018 Share Posted June 8, 2018 Alright. You beat me to it. Everything about this photo is fine, composition-wise, the focus is just on the wrong eye. It happens. Link to comment Share on other sites More sharing options...
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