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| 11 point focusing - Page 1 | |
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| Posted: Thu May 21st, 2015 11:28 |
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1st Post |
Eric
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I thought I would start a new thread on this subject. Ok I am a Luddite. I have always used AF-S and single centre spot metering. I am aware that these modern camera can flash focus lights all over the screen and do something clever, but I have always shied away from dabbling with this witchcraft. But when I read Graham was having some success changing to this 11point focusing thingie, I am now thinking I need to drag myself out of the dark age and use some of these 21century features. The trouble is...I don't understand it. If I am shooting an object centre screen, what relevance do the other 10focus point have? In the case of bird photography, why does the positioning of the birds next door to your subject have any relevance? Similarly if I am lucky enough to fill the frame with a single bird, why would the disposition of its feet or beak have any relevance if I want the eyes kept in focus? Can someone explain how multipoint focusing works, as I am a right numptie on this one? 
____________________ Eric |
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| Posted: Thu May 21st, 2015 11:56 |
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2nd Post |
Gilbert Sandberg
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Eric, There is some very clever logic/programming behind these multi-point fcusing features. I do not claim to understand them fully, although some Nikon rep's have tried to explain them to me. One of the tricks is to automagically follow the subject part focused on, based on the color. But of course, on a single-colour static object, in the centre of the frame, all those modern gizmos are of little consequence (grin). Regards, Gilbert
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| Posted: Thu May 21st, 2015 12:14 |
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3rd Post |
Graham Whistler
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Well done Eric I shall follow this with great interest. As you say I have used the single point system since I had Nikon Auto focus and for 99% of the time it has been spot on but with Macro work I still find manual focus works better for me. Now I am semi retired I have more time to explore new areas and hence my recent interest in bird photography. I find that even on the ground or wading in water they move all the time and single point does not always give you pin sharp.Birds in the air: I am still a long way off knowing what to do!!! Now I have changed to 11 point it is working better. Maybe it is just that my skill level is going up as I spend more time at it? Sadly the Nikon D810 instruction book even after reading all bits on auto focus has not been much help. Another retired pro photographer in our local camera club also has 810 but like me know that single point works best for most static subjects but told me to try 11 point thinking it may work better. I am learning but any help from any of our dslr.net Forum friends please would be great?
____________________ Graham Whistler |
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| Posted: Thu May 21st, 2015 13:10 |
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4th Post |
Eric
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I suppose I am getting a bit mixed up with terminology....easy for me! What exactly does one do differently when using 11 point, 24point or 51point focusing? What is the procedure? Is this any different to the 3D focusing option? I know with this option that if I lock onto a focus point and the point of focus moves around the viewfinder, the camera will track it and keep the point in focus. With AF-C, the focus point can move closer or further away and the camera will again keep track and adjust focus. So combining these two features means if the subject is girating ( eg a flower in the breeze) you have a good chance of keeping the subject sharp in focus...especially if you use a fast shutter speed.
____________________ Eric |
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| Posted: Thu May 21st, 2015 15:56 |
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5th Post |
TomOC
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Eric- Isn't the focus setting the dynamic focus that you want...if you start with center square and subject moves while you are half depressed with the shutter button, the focus square jumps along with the subject. Of course, I rarely use the Nikon out of studio lately so I really haven't checked this in real world...just how I remember it (and my memory is fading with age  Fuji doesn't have this problem - it's focus skills aren't quite up to Nikon level I'm even using Fuji with manual a lot Tom
____________________ Tom O'Connell -Lots of people talk to animals.... Not very many listen, though.... That's the problem. Benjamin Hoff, The Tao of Pooh |
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| Posted: Fri May 22nd, 2015 06:29 |
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6th Post |
Gilbert Sandberg
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Eric, re: do differently One thing is using a different amount of sensors and CPU processing time, affecting the response time of the AF system). Do not dispair, I still remember a USA wildlife photographer admitting online he took many weeks to understand and use modern AF system to its maximum (especially with difficult light settings and moving subjects. Regards, Gilbert
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| Posted: Fri May 22nd, 2015 08:26 |
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7th Post |
Eric
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TomOC wrote:Eric- The D750 has '3D focusing' which does that.... Off to read the manual. 
____________________ Eric |
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| Posted: Fri May 22nd, 2015 13:39 |
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8th Post |
jk
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BTW: There is a firmware upgrade for the D750. http://downloadcenter.nikonimglib.com/en/download/fw/141.html
____________________ Still learning after all these years! https://nikondslr.uk/gallery_view.php?user=2&folderid=none |
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| Posted: Fri May 22nd, 2015 13:42 |
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9th Post |
jk
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Eric wrote: I thought I would start a new thread on this subject. yep and it works time after time especially if you get the centre spot in the right place. I only use AFC Dynamic (however many points) for my flamenco shots where I know I want to 'track' a dancer and the point of interest face/hands/feet are not in the centre.
____________________ Still learning after all these years! https://nikondslr.uk/gallery_view.php?user=2&folderid=none |
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| Posted: Fri May 22nd, 2015 15:49 |
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10th Post |
Eric
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jk wrote:BTW: There is a firmware upgrade for the D750. Thanks:thumbsup:
____________________ Eric |
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| This is topic ID = 1188 Current time is 10:45 | Page: 1 2 3 4 5 | |
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