Focus on Flowers
The State Rose Garden is maintained by a group of hard-working volunteers.
I am working out the strengths and weaknesses of the new auto-focus on the Sony A7RV. It’s extraordinary when it recognises subjects, but what about when it doesn’t? I headed to the Rose Garden with two objectives: to try out Insect AF on bees, and to try the AF on flowers without bees – the list of subjects recognised by the A7RV does not include flowers. Perhaps Sony felt that flowers aren’t too difficult to photograph using old-fashioned techniques, or perhaps Sony’s monster AF training system had trouble locating the eyes on flowers?
These images were all shot with the A7RV set to Insect Subject Recognition (and mostly defaulting to a more normal auto-focus when it didn’t find an insect). The lens was the 70-200 f/2.8 GM II, set to f/8. ISO was on Auto, and shutter speed was mostly 1/2000. Most of the images have been cropped to around 5000 pixels wide (they vary from 2500 up to 6500 pixels wide).
Let’s start with the one flower that I found with a bee (click on the gallery to see the images larger):
I was wondering about the blur over the middle leg until I realised that the bee’s wings were buzzing because it was about to take off.
And now some bee-free flowers. Click on the gallery to see the images larger.
I think I may well leave subject recognition turned on most of the time, because it does not appear to impede auto focus on subjects which are not recognised. Would be worth turning it off if taking, for example, crowd photos that are not meant to be focussed on an individual.