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Graham In Kenya   -   Page   13
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Posted: Fri Dec 27th, 2019 11:39
 
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jk



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Eric wrote:
Edit: on reflection, it's the Panasonic that enables you to configure the focus square size. I set it down to almost a dot ....and Jan couldn't find where it was on the screen

And the Fuji.



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Posted: Fri Dec 27th, 2019 13:06
 
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Graham Whistler



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I have checked both cameras and can see no way of altering the size of the focus point sq. As all else failed I have read both instruction books again and can find no more info on this. Eric give it a go you may see something I have missed.



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Posted: Fri Dec 27th, 2019 14:13
 
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jk



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Graham Whistler wrote:
I have checked both cameras and can see no way of altering the size of the focus point sq. As all else failed I have read both instruction books again and can find no more info on this. Eric give it a go you may see something I have missed.
The focus points on DSLRs from Nikon is single sized.
I dont think there are any DSLRs that have resizeable focus points.
Nikon Z6/7 have adjustable focus point size.

On a Nikon the best we can do is use the Dynamic AF feature that aggregates focus points to make a large area that is focus dedicated but in this situation a single point is in control of the grouped points.



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Posted: Fri Dec 27th, 2019 15:50
 
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jk wrote:
The focus points on DSLRs from Nikon is single sized.
I dont think there are any DSLRs that have resizeable focus points.
Nikon Z6/7 have adjustable focus point size.

On a Nikon the best we can do is use the Dynamic AF feature that aggregates focus points to make a large area that is focus dedicated but in this situation a single point is in control of the grouped points.

I wonder if the common denominator, all being mirrorless, has a bearing on this feature?

As for DSLR, I know that the metering system uses the focus point to measure the exposure. I wonder if the reverse is true ...viz that spot metering considers a sharper focus point? Too much to ask.



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Posted: Sat Dec 28th, 2019 01:56
 
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jk



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Mirrorless is the common technology feature and this technology has AF points on the sensor which may or may not be linked to the use for exposure.



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Posted: Sun Dec 29th, 2019 08:13
 
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Iain



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You can do it no the Olympus but again it's mirrorless.

 




Posted: Sun Dec 29th, 2019 12:34
 
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Eric



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Another advantage of mirrorless. :sssshh:



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Posted: Sun Dec 29th, 2019 16:07
 
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jk



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Eric wrote:
Another advantage of mirrorless. :sssshh:
Yep, it is the future but it is still improving whilst DSLRs are more or less as as advanced as they can be.



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Posted: Mon Dec 30th, 2019 03:09
 
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on the Panasonic you can alter the size of the focus point by simply pulling it together on the rear screen ,I don't think you can on the Olympus ? but the smallest focus point is the one I use 95% of the time as it sees through foliage etc but still works for b.i.f

 




Posted: Mon Dec 30th, 2019 04:36
 
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Graham Whistler



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I agree with your remarks about smaller focus point Jeff gets through foliage that was problem with the D500 in Kenya focus point is quite large compared with the D850 and I find I have far less missed shots with focus problems with the D850. Perhaps I took the wrong camera with me? This is a typical focus failure, the picture is also a medium 50% crop . Good light was holding the camera well and sitting in the Landrover. I took three and this was the best! D500: 1/400 sec f22 ISO 500 80-400mm at 400mm plus x1.4 single focus point and it was held steadly on the birds head! The D850 with the same lens and setting would have been spot on but the larger focus spot on the D500 made focus slightly forward as you can see. At the time in very bright light looking at rear screen pix looked good it was only later on laptop that I could see the problem.



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