wooferdog Posted May 14, 2018 Share #1 Posted May 14, 2018 Advertisement (gone after registration) After 30 years manual focus , I'm using my first auto focus lens on the SL , the 75 App. I'm not sure which mode to use , single point or field ....could someone advise me in the practical us elf both. Many thanks Quote Link to post Share on other sites More sharing options...
Advertisement Posted May 14, 2018 Posted May 14, 2018 Hi wooferdog, Take a look here Field autofocus V's single point. I'm sure you'll find what you were looking for!
sillbeers15 Posted May 14, 2018 Share #2 Posted May 14, 2018 Use single point when you want specific location to be in focus out of a busy background. Use field or zone when the subject are either in group or comes randomly onto a clean background such as sky or water surface. 1 Quote Link to post Share on other sites More sharing options...
thighslapper Posted May 14, 2018 Share #3 Posted May 14, 2018 (edited) You will have more success and less aggravation using field with the 75/2, especially wide open. This is counter intuitive ....... with the narrow DOF you would have thought that you would be better with Single Point for accuracy ..... but in fact locking onto the required point is harder than it looks, especially for small objects, flowers, foliage, noses etc .... you can easily find the camera focussing on things in front or behind ...... better to let Field pick an average point centred on the area you want. I’d try a bit of experimentation (as I did) and you will soon find out which is the most reliable. Edited May 14, 2018 by thighslapper 1 Quote Link to post Share on other sites More sharing options...
jaapv Posted May 14, 2018 Share #4 Posted May 14, 2018 It sounds decadent, but Face Recognition is quite useful. It will lock on a face if it can find one, and revert to Field when there is no face. 3 Quote Link to post Share on other sites More sharing options...
Chuck Albertson Posted May 14, 2018 Share #5 Posted May 14, 2018 It sounds decadent, but Face Recognition is quite useful. It will lock on a face if it can find one, and revert to Field when there is no face. I've also found face recognition very useful for portraits. It mostly works, even locking onto the nearest eye of the subject, but sometimes gets thrown off if the subject is wearing glasses, or their eyes are shaded (like by a hat brim). Quote Link to post Share on other sites More sharing options...
lx1713 Posted May 14, 2018 Share #6 Posted May 14, 2018 It sounds decadent, but Face Recognition is quite useful. It will lock on a face if it can find one, and revert to Field when there is no face. Scott taught me this trick with AFc for video. It's sort of embarrassingly fun to use. Quote Link to post Share on other sites More sharing options...
wooferdog Posted May 21, 2018 Author Share #7 Posted May 21, 2018 Advertisement (gone after registration) Thank you all for your help .... I'm experimenting , prefer single point , but am missing a few. Quote Link to post Share on other sites More sharing options...
Chuck Albertson Posted May 23, 2018 Share #8 Posted May 23, 2018 I've also found face recognition very useful for portraits. It mostly works, even locking onto the nearest eye of the subject, but sometimes gets thrown off if the subject is wearing glasses, or their eyes are shaded (like by a hat brim). Reinforcing this point, most of the security checkpoints I've been through this week have been flummoxed when I show up, until one of the attendants yell at me to take off my cowboy hat and glasses. Quote Link to post Share on other sites More sharing options...
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