GH4: sequence (many pics)

Started Apr 28, 2014 | Discussions
Lab D
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GH4: sequence (many pics)
Apr 28, 2014

First and only try today.  The GH4 locked on to the top of his head.  He runs pretty quick and if you are not careful he WILL knock you down.  DoF was pretty shallow at the end.

There is no "my camera is better than yours" claim here (so find another thread of that), but we can conclude DFD is real and good enough for most buyers.

By the end he was still moving very fast and it was very difficult to keep him in the frame.

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Lab D
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My favorite
In reply to Lab D, Apr 28, 2014

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jalywol
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Re: My favorite
In reply to Lab D, Apr 28, 2014

Cute dog!  Is he a labradoodle?

-J

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danieljcox
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Re: My favorite
In reply to jalywol, Apr 28, 2014

Getting ready to run this test this evening myself. Will let yo know. It looks somewhat promising I will say.

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Lab D
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Re: My favorite
In reply to jalywol, Apr 28, 2014

Cute dog!  Is he a labradoodle?

-J

Yes, and thank you. Now you know where my ID comes from.

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s_grins
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Re: GH4: sequence (many pics)
In reply to Lab D, Apr 28, 2014

Yes, it works (DFD i mean).

It will work better in future models.

I've never been successful when taking photos of running dogs with my GH2 and G1

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Camera in bag tends to stay in bag...

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jalywol
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Re: My favorite
In reply to Lab D, Apr 28, 2014

Lab D wrote:

Cute dog! Is he a labradoodle?

-J

Yes, and thank you. Now you know where my ID comes from.

That had occurred to me after I posted the question 

(I have a yellow Lab myself, wonderful dogs).

-J

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Lab D
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Looking forward to it!
In reply to danieljcox, Apr 28, 2014

danieljcox wrote:

Getting ready to run this test this evening myself. Will let yo know. It looks somewhat promising I will say.

Thanks in advance.  I look forward to more people testing this.  I know the lens may affect results too.  It will be nice to see which work best.

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Ontario Gone
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Re: GH4: sequence (many pics)
In reply to Lab D, Apr 28, 2014

Excellent series. I guess that takes care of the question can it track well. Now as you say, to see which lenses work better or worse, and perhaps if there are conditions where it could be better or worse than your results. As an overall average, i would say we have a perfectly capable, DSLR equivelent, action camera (as well as 4k ect). So much for the theory about basing this all on one or two pics 

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robonrome
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Re: My favorite
In reply to Lab D, Apr 28, 2014

I've tried this many time with my gh3 but never had anything like this sort of success so I'm impressed.

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David 247
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Re: GH4: sequence (many pics)
In reply to Lab D, Apr 29, 2014

Looking good so far.  Like what I see.

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Lab D
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Here is what really impresses me...
In reply to robonrome, Apr 29, 2014

robonrome wrote:

I've tried this many time with my gh3 but never had anything like this sort of success so I'm impressed.

It is very hard to keep a crazy fast charging dog in the frame especially when he is only a few feet away, but when you do and even though the DoF is only a few inches, the camera seems to nail it.

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neil holmes
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Re: GH4: sequence (many pics)
In reply to Lab D, Apr 29, 2014

Not sure if that is evidence of DFD but it is certainly very good ....how does it do with DFD off? (or is it always on when tracking)??

That shows as around 6fps.....Does turning things on or off affect the speed? (have you turned anything on/off yet?

Tracking (not something I usually do) with my GX7 is great but seems a bit slower than 5fps it is supposed to be able to do but I have lots of things turned on.

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Lab D
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Re: GH4: sequence (many pics)
In reply to neil holmes, Apr 29, 2014

neil holmes wrote:

Not sure if that is evidence of DFD but it is certainly very good ....how does it do with DFD off? (or is it always on when tracking)??

That shows as around 6fps.....Does turning things on or off affect the speed? (have you turned anything on/off yet?

Tracking (not something I usually do) with my GX7 is great but seems a bit slower than 5fps it is supposed to be able to do but I have lots of things turned on.

From what I can tell it is about 7-8 FPS which matches the 7.5 FPS the specs say.  When you switch form AF-S mode to AF-C it changes from 12 to about 7 or 8 FPS I found earlier today.

Tracking is always DFD and I do not think you can turn it off.   It is simply an improved version/next generation of CDAF that works in any lighting condition.  This why even when I have a lens focused on infinity and I snap a picture in near darkness of something close (forcing the focus to make a maximum change), it still can do it in the blink of an eye (with the right lens).

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neil holmes
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Re: GH4: sequence (many pics)
In reply to Lab D, Apr 29, 2014

Lab D wrote:

neil holmes wrote:

Not sure if that is evidence of DFD but it is certainly very good ....how does it do with DFD off? (or is it always on when tracking)??

That shows as around 6fps.....Does turning things on or off affect the speed? (have you turned anything on/off yet?

Tracking (not something I usually do) with my GX7 is great but seems a bit slower than 5fps it is supposed to be able to do but I have lots of things turned on.

From what I can tell it is about 7-8 FPS which matches the 7.5 FPS the specs say. When you switch form AF-S mode to AF-C it changes from 12 to about 7 or 8 FPS I found earlier today.

Tracking is always DFD and I do not think you can turn it off. It is simply an improved version/next generation of CDAF that works in any lighting condition. This why even when I have a lens focused on infinity and I snap a picture in near darkness of something close (forcing the focus to make a maximum change), it still can do it in the blink of an eye (with the right lens).

Thanks.

Your sequence had 6 shots on the same second with others before and after....

I had the same thing the other day with the GX7.... I THOUGHT I was shooting at 5fps but it was only 2 or 3 shooting at 1/8000 when I looked at the times in the photo details.... that's why I was asking about things on/off making a difference....I think it does with the GX7....seems less so though with the GH4 (if it is affected at all).

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Old Listener
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Re: GH4: sequence (many pics)
In reply to neil holmes, Apr 29, 2014

This doesn't prove anything.  You need to use a greyhound! 

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neil holmes
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Re: GH4: sequence (many pics)
In reply to Old Listener, Apr 29, 2014

Old Listener wrote:

This doesn't prove anything. You need to use a greyhound!

LOL

That wont prove anything either.....a couple of years ago I used to shoot greyhounds with manual focus lenses and they were used by Australia's biggest circulation greyhound racing paper.

Focus advances with mirrorless cameras have accelerated a LOT lately.

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amtberg
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Re: GH4: sequence (many pics)
In reply to Old Listener, Apr 29, 2014

Old Listener wrote:

This doesn't prove anything. You need to use a greyhound!

I could just as well with my Kodak Instamatic.

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guybie
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Re: GH4: sequence (many pics) BIF test?
In reply to Lab D, Apr 29, 2014

Waw, very good! I just ordered mine this morning, hope to receive it in two weeks.
I would like to ask you whether you can test fast moving BIF for me, if possible with the
100-300mm .

ab D wrote:

First and only try today. The GH4 locked on to the top of his head. He runs pretty quick and if you are not careful he WILL knock you down. DoF was pretty shallow at the end.

There is no "my camera is better than yours" claim here (so find another thread of that), but we can conclude DFD is real and good enough for most buyers.

By the end he was still moving very fast and it was very difficult to keep him in the frame.

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photofan1986
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Re: GH4: sequence (many pics)
In reply to Lab D, Apr 29, 2014

This looks promising. I wonder how it compares to the GM1, which really surprised me recently.

The question is:  is this possible thanks to the new DFD method or the better contrast detection algorithms, aslo used in the GM1.

http://www.dpreview.com/forums/thread/3649108

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