EMLEICA Posted March 4, 2017 Share #1 Â Posted March 4, 2017 Advertisement (gone after registration) Hello there, Â When Touch-AF focusing is selected the shutter release button continues to focus when pressed. Â Is there any way to avoid the shutter release to focus when pressed ? Â Thanks for any help. Link to post Share on other sites More sharing options...
Advertisement Posted March 4, 2017 Posted March 4, 2017 Hi EMLEICA, Take a look here Focus Touch-AF and Shutter button separation. I'm sure you'll find what you were looking for!
EMLEICA Posted March 7, 2017 Author Share #2 Â Posted March 7, 2017 Hello there, Â Could anyone please give me some info about this ? Â Thanks for your help Link to post Share on other sites More sharing options...
Belle123 Posted March 7, 2017 Share #3 Â Posted March 7, 2017 Think I can answer your question, if I understand it. Am assuming you know the shutter button has a half position where doesn't release the shutter and just focuses? The half position triggers the focus and you can hold it down and move the camera view to your hearts content and it will stay in that focus position even though what you focused on originally might now be out of focus or even out of view. But, no, the camera will always refocus if in autofocus mode once you go from not touching the shutter button to either half down or all the way down which triggers the shutter. Does that answer your question? Link to post Share on other sites More sharing options...
EMLEICA Posted March 7, 2017 Author Share #4 Â Posted March 7, 2017 Think I can answer your question, if I understand it. Am assuming you know the shutter button has a half position where doesn't release the shutter and just focuses? The half position triggers the focus and you can hold it down and move the camera view to your hearts content and it will stay in that focus position even though what you focused on originally might now be out of focus or even out of view. But, no, the camera will always refocus if in autofocus mode once you go from not touching the shutter button to either half down or all the way down which triggers the shutter. Does that answer your question? Â Â Â In the first place I wish to thank you for your reply. What I would like to obtain is something similar to "back-focusing", in other words, beeing able to focus with the "Touch-AF" on the LCD and after that, simply press the shutter button to take the photo without the focusing of the "half position trigger". Hope I made it more clearly. Is that possible or there is no way to stop focus when pressing the shutter button ? Â Thanks again for any help. Link to post Share on other sites More sharing options...
Belle123 Posted March 7, 2017 Share #5 Â Posted March 7, 2017 In the first place I wish to thank you for your reply. What I would like to obtain is something similar to "back-focusing", in other words, beeing able to focus with the "Touch-AF" on the LCD and after that, simply press the shutter button to take the photo without the focusing of the "half position trigger". Hope I made it more clearly. Is that possible or there is no way to stop focus when pressing the shutter button ? Â Thanks again for any help. Hmmm. I don't think possible. Haven't found any way around it. Link to post Share on other sites More sharing options...
EMLEICA Posted March 7, 2017 Author Share #6 Â Posted March 7, 2017 Hmmm. I don't think possible. Haven't found any way around it. Â Â Â Thanks. Let's hope and ask for a new firmware upgrade to implement this feature... Link to post Share on other sites More sharing options...
euston Posted March 13, 2017 Share #7  Posted March 13, 2017 Advertisement (gone after registration) The Touch AF + Release setting of the auto-focus mode seems to do what you want, if I have understood you correctly. My apologies if I haven't. In this mode you touch the screen to focus and the camera operates the shutter. You don't need to touch the shutter release button at all. Link to post Share on other sites More sharing options...
EMLEICA Posted March 13, 2017 Author Share #8  Posted March 13, 2017 The Touch AF + Release setting of the auto-focus mode seems to do what you want, if I have understood you correctly. My apologies if I haven't. In this mode you touch the screen to focus and the camera operates the shutter. You don't need to touch the shutter release button at all.   Thanks for your comment but that's not exactly what I want. I would like to focus with the Touch-AF (at one specific location on the image) and, after that, use the shutter release to "measure the scene" (correct exposure) and take the shot at the right moment (without any refocusing). Link to post Share on other sites More sharing options...
Jkulin Posted March 13, 2017 Share #9 Â Posted March 13, 2017 The only way I can see to do this is use AF, then once focused switch to manual focus without touching the shutter or lens and mess around with the exposure/composition and take the shot. Â Long winded and IMHO totally unnecessary, either shoot manual or shoot AF by a half press to lock the focus. Link to post Share on other sites More sharing options...
EMLEICA Posted March 13, 2017 Author Share #10 Â Posted March 13, 2017 The only way I can see to do this is use AF, then once focused switch to manual focus without touching the shutter or lens and mess around with the exposure/composition and take the shot. Â Long winded and IMHO totally unnecessary, either shoot manual or shoot AF by a half press to lock the focus. Â Â Thanks for the comment but IMHO this is something, once in a while, too good to be wasted. My Leica-Q has this function and I love that "back-focusing" option. Link to post Share on other sites More sharing options...
Jkulin Posted March 13, 2017 Share #11 Â Posted March 13, 2017 Can you give a couple of examples when you would need this as I can't for the life of me figure a use for it? Link to post Share on other sites More sharing options...
EMLEICA Posted March 13, 2017 Author Share #12 Â Posted March 13, 2017 Can you give a couple of examples when you would need this as I can't for the life of me figure a use for it? Â Â Any situation when you need to separate focusing from exposure... Link to post Share on other sites More sharing options...
Jkulin Posted March 13, 2017 Share #13 Â Posted March 13, 2017 Sorry but that doesn't make any sense as all images require separate focusing from exposure. In fact every single time I pressure the shutter a different exposure and focus point takes place. Link to post Share on other sites More sharing options...
EMLEICA Posted March 13, 2017 Author Share #14 Â Posted March 13, 2017 Sorry but that doesn't make any sense as all images require separate focusing from exposure. In fact every single time I pressure the shutter a different exposure and focus point takes place. Â Â Maybe we are talking about different things. My English is not my native language... Many times you just may want to focus on one zone and get exposure from another diferent zone of the scene (highlights issues)... But dont worry... just keep doing your way, and I will keep waiting from a firmware upgrade... Thanks for your time. Link to post Share on other sites More sharing options...
Jkulin Posted March 14, 2017 Share #15 Â Posted March 14, 2017 Maybe we are talking about different things. My English is not my native language... Many times you just may want to focus on one zone and get exposure from another diferent zone of the scene (highlights issues)... But dont worry... just keep doing your way, and I will keep waiting from a firmware upgrade... Thanks for your time. Â Your English is excellent so please don't worry about that, if English is not your native language then you can be very proud of your ability.. Â In the old'un days I use to use my Lunasix F and take a light reading from a different area, especially when taking high contrast images such as snow, weddings or landscape photos and then would focus on the area of my final image. Â Maybe you could try something similar by taking a reading first and then focus on the area you want, I know it is the chicken before the egg but working in reverse might achieve your aim. Â Good Luck. Link to post Share on other sites More sharing options...
euston Posted March 14, 2017 Share #16  Posted March 14, 2017 Maybe we are talking about different things. My English is not my native language... Many times you just may want to focus on one zone and get exposure from another diferent zone of the scene (highlights issues)... But dont worry... just keep doing your way, and I will keep waiting from a firmware upgrade... Thanks for your time.  I think I see the problem now. Because focus and exposure are locked together when using autofocus, you can’t focus on one spot and meter off another, which is something I find myself wanting to do quite often. Some cameras have a button that will lock the metering so that it doesn’t change when you press the shutter button to focus and shoot. As far as I know, you can’t do that on a T.  The only solution I know of is to use manual focus. Depressing the shutter halfway will fix the metering to where you want it but you can change the focus independently. Also, with native T lenses it is possible to adjust the focus manually even when using autofocus. Half press the shutter button to fix metering and then, keeping it pressed, adjust the focus to precisely where you want it. Link to post Share on other sites More sharing options...
EMLEICA Posted March 14, 2017 Author Share #17  Posted March 14, 2017 I think I see the problem now. Because focus and exposure are locked together when using autofocus, you can’t focus on one spot and meter off another, which is something I find myself wanting to do quite often. Some cameras have a button that will lock the metering so that it doesn’t change when you press the shutter button to focus and shoot. As far as I know, you can’t do that on a T.  The only solution I know of is to use manual focus. Depressing the shutter halfway will fix the metering to where you want it but you can change the focus independently. Also, with native T lenses it is possible to adjust the focus manually even when using autofocus. Half press the shutter button to fix metering and then, keeping it pressed, adjust the focus to precisely where you want it.    Thank you so much for your comment. You made it more clear and exactly the way I was trying to explain. Link to post Share on other sites More sharing options...
JPP1 Posted March 14, 2017 Share #18  Posted March 14, 2017 when using autofocus, you can’t focus on one spot and meter off another,  Yes, you can because you can move the AF target anywhere on the screen/EVF. So the focus is on one point and the exposure in the center. Link to post Share on other sites More sharing options...
euston Posted March 15, 2017 Share #19  Posted March 15, 2017 Yes, you can because you can move the AF target anywhere on the screen/EVF. So the focus is on one point and the exposure in the center.  That’s news to me. Thank you! Link to post Share on other sites More sharing options...
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