Hi
can you set the 7D to have the Back Button AF ? I found how to get it to Af using the back button, but it still meters, I am so confused.
peregrineflier Goldmember ![]() 4,069 posts Likes: 7 Joined Jan 2010 More info | Sep 11, 2010 01:26 | #1 Hi Thanks, Tom the Peregrineflier
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Sep 11, 2010 01:31 | #2 See the manual Page 217 Novice - So novice that I can learn from anyone even beginners
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MOkoFOko nut impotent and avoiding Geoff ![]() 19,889 posts Likes: 21 Joined Jun 2010 Location: Michigan More info | Sep 11, 2010 01:36 | #3 Yup, you can definitely turn off metering on the back button, and have the half-press of the shutter button take care of it. There's a whole menu screen for assigning button actions--easy to reach from custom functions as well.
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Sep 11, 2010 01:45 | #4 I still can not find it, I can turn off af ion the front button, but can not figure out how to stop the metering on the back AF-on button Thanks, Tom the Peregrineflier
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malla1962 Cream of the Crop ![]() 7,714 posts Likes: 5 Joined Jul 2004 Location: Walney Island,cumbria,uk More info | Sep 11, 2010 02:35 | #5 peregrineflier wrote in post #10888666 ![]() I still can not find it, I can turn off af ion the front button, but can not figure out how to stop the metering on the back AF-on button I use the * button for focus on my 7d.
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John Hayes Member ![]() 188 posts Likes: 10 Joined Nov 2009 Location: Eugene, Oregon More info | Sep 11, 2010 04:32 | #6 |
apersson850 Cream of the Crop ![]() More info | You can't turn off metering when you are focusing. Why would you? Anders
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NPuter Senior Member ![]() 574 posts Likes: 46 Joined Jul 2009 Location: Miami, FL More info | Sep 11, 2010 07:44 | #8 apersson850 wrote in post #10888982 ![]() You can't turn off metering when you are focusing. Why would you? You can turn off focusing when you are metering with the half-press of the trigger button, though. If you use AF-ON (properly labelled for it) or * (legacy solution for when cameras didn't have AF-ON) is of course up to you. When shooting action I have focusing with selected AF point on AF-ON and with registered Home Point on *. So you can actually have both. That sounds like exactly how I would have it... How to you register a Home Point? NPuter | flickr
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apersson850 Cream of the Crop ![]() More info | User's manual page 219. Anders
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sando Goldmember ![]() 2,868 posts Joined Apr 2006 More info | Sep 11, 2010 08:36 | #10 /\ Awesome. - Matt
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NPuter Senior Member ![]() 574 posts Likes: 46 Joined Jul 2009 Location: Miami, FL More info | Sep 11, 2010 08:39 | #11 apersson850 wrote in post #10889309 ![]() User's manual page 219. Select a single point, hold AF point selection button and press lamp button on top. The registration can be cancelled by pressing AF select button and ISO button at the same time. If you use orientation dependent AF point selection, you'll have to register Home Points (HP) for all orientations. When you set AF-ON and/or * to autofocus, you can press INFO to get deeper into the details, and there select with which point they should focus. You can also select if pressing the joystick should go to HP or not. The registered point will be shown as a small dot in the viewfinder. Last time I had good use for this was when shooting racing cars going in and out of a hairpin. For composition reasons, I didn't want to use the center AF point, but one a bit to the side. But the side changed when the cars changed direction in the hairpin. So by just selecting a point to the left and registering a point to the right, I could hold * when going into the hairpin and just changed to AF-ON when going out. A flick of the thumb while I tracked the car in the viewfinder. Thanks! I can't wait to get my 7D (soon NPuter | flickr
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apersson850 Cream of the Crop ![]() More info |
apersson850 Cream of the Crop ![]() More info | Sep 11, 2010 08:50 | #13 NPuter wrote in post #10889377 ![]() Thanks! I can't wait to get my 7D (soon ![]() If you use evaluative metering and One Shot AF, the shutter button half-press is AE lock by default. Anders
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NPuter Senior Member ![]() 574 posts Likes: 46 Joined Jul 2009 Location: Miami, FL More info | Sep 12, 2010 16:06 | #14 apersson850 wrote in post #10889396 ![]() If you use evaluative metering and One Shot AF, the shutter button half-press is AE lock by default. Don't forget that if you don't always want AE lock on half-press, you have yet another button now, the M-Fn. When shooting action with automatic exposure, I ususally move AE lock to the M-Fn button. Thus it's there, but still allows me to follow and adjust exposure automatically accordingly, if needed. I'm often taking photos of people running between bushes and branches, in and out of sunlit areas, so the difference in illumination is often too much to handle smoothly in M mode. There's enough to think about regarding focusing and tracking. Tv allows me to keep the shutter speed I want for the motion effect, while I'm busy adjusting zoom, AF-ON, * and DOF buttons to control framing and focus point and mode selection. The photo is one in a long sequence I shot when I evaluated the different AF settings for tracking runners that sometimes are hardly visible at all. Yep - I totally know what you are saying... On my T1i, I have always had * as focusing and shutter 1/2 press as AE lock - I actually like the shutter 1/2 press as AE lock for 90% of my shooting... NPuter | flickr
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apersson850 Cream of the Crop ![]() More info | All combinations of AF and metering except evaluative and One Shot AF will allow you to make the decision about if you want AE lock or not. Anders
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