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GH4 focusing working well so far.

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Jorginho said:
amtberg said:
Jorginho said:
I know that DFD is just another word for CDAF as it is essentially just that with some algorithm.

Whatever it is called; why is no one going to some road, to some sportfield to some park were there are moving people, cars and/or birds and immediately try it out? I know 4K is the major feature but this DFD (depending on how good it is) is a close second. Well: at least to my mind. But like I said: I might overestimate this feature for most users..
Click to expand...
Why? Probably because most of us have to work and the cameras just started showing up on Monday! ;)
Click to expand...
I am pretty bussy with my job too, but the days are now long. You can easily shoot till 21 oçlock at my lattitude (52 north). But I am overenthusiastic at times, that is true also. I would rush out, not even reading the booklet (but taking it with me) and try it. everything else would be not important and not a reason not to go out and try it. But I am like that. Not necessarily a nice feature of mine. I am a weatherbuff. If it is my birthday and a supercell with tornadic tendenciess would be anywhere near me, I would leave my own birthdayparty and venture out to chase that storm down. "Have a nice party everyone, but I am gone. You'll know the way out whenever it suits you. Cheers". Just to say: it might be me and my character.
Click to expand...
Just for you I went out and shot some cars in tracking mode. I've got to say I'm impressed. I did this with four or five cars and they all tracked beautifully.

http://www.pbase.com/adamt001/gh4_af_tracking

Shot with the e-shutter, Panasonic 45-150, burst mode High, large jpegs straight out of the camera.
 
Last edited:
amtberg said:
Jorginho said:
amtberg said:
Jorginho said:
I know that DFD is just another word for CDAF as it is essentially just that with some algorithm.

Whatever it is called; why is no one going to some road, to some sportfield to some park were there are moving people, cars and/or birds and immediately try it out? I know 4K is the major feature but this DFD (depending on how good it is) is a close second. Well: at least to my mind. But like I said: I might overestimate this feature for most users..
Click to expand...
Why? Probably because most of us have to work and the cameras just started showing up on Monday! ;)
Click to expand...
I am pretty bussy with my job too, but the days are now long. You can easily shoot till 21 oçlock at my lattitude (52 north). But I am overenthusiastic at times, that is true also. I would rush out, not even reading the booklet (but taking it with me) and try it. everything else would be not important and not a reason not to go out and try it. But I am like that. Not necessarily a nice feature of mine. I am a weatherbuff. If it is my birthday and a supercell with tornadic tendenciess would be anywhere near me, I would leave my own birthdayparty and venture out to chase that storm down. "Have a nice party everyone, but I am gone. You'll know the way out whenever it suits you. Cheers". Just to say: it might be me and my character.
Click to expand...
Just for you I went out and shot some cars in tracking mode. I've got to say I'm impressed. I did this with four or five cars and they all tracked beautifully.

http://www.pbase.com/adamt001/gh4_af_tracking

Shot with the e-shutter, Panasonic 45-150, burst mode High, large jpegs straight out of the camera.
Click to expand...
Wow that is very kind of you! Thank you. On the flip side: you can look trhough my gallery and find focustracking with my EPL5 and it did equally well. There is a German test that showed G6 doing that well. A really fast moving car is more of problem, so how fast was this one? Sports...pooh...not very succesfull with GH2 (to be expected) and EPL5. But many thanks for your effort!
 
Eager awaiting the results.
 
Jorginho said:
I know that DFD is just another word for CDAF as it is essentially just that with some algorithm.
Click to expand...
It's a little more than that. The strong advantage of PDAF is that the autofocus sensor knows not only which direction it needs to move the lens but also how far to move it.

DFD still requires an extra sample to figure out which direction to move the lens in, but that second sample also gives it information about how far it needs to move. So instead of having to move one step at a time until a sharp image is obtained it can skip over many of the intermediate steps just like PDAF does.

So it really is an intermediate technology between PDAF and conventional CDAF, IMHO.

Whether it actually delivers depends on how clever the algorithms are, though.
 
Lab D said:
I did have the camera set to C-AF for every picture and I was using medium burst mode. The burst mode seemed very slow so I am have had a setting incorrect or the camera cannot shoot quickly while using C-AF - I can't say at this time.
Click to expand...
Were you shooting JPEGs, outdoors or indoors? With the GH3, if you shoot JPEGs at high ISOs, there is an annoying lag between shots, as if the the camera is applying a lot of PP to each picture before moving on to the next image. I hope GH4 no longer has this problem but what you said worried me. If you were shooting JPEGs, try to turn off all the settings (sharpening, NR, DR adjust, etc) and see if it goes faster.
 
Sergey_Green said:
Sergey_Green wrote:

It is rather diffuclt to tell whether the camera did focus right where it should have focused, or if it only fused in a ballpark of a three feet error margin. Makes some difference, does not it?
Click to expand...
Isn't "in a ballpark of being in focus" also known as being in focus?
 
honeyiscool said:
honeyiscool said:
Sergey_Green wrote:
It is rather diffuclt to tell whether the camera did focus right where it should have focused, or if it only fused in a ballpark of a three feet error margin. Makes some difference, does not it?
Click to expand...
Isn't "in a ballpark of being in focus" also known as being in focus?
Click to expand...
:)

Most people understand that, but I guess not all.
 
honeyiscool said:
honeyiscool said:
Sergey_Green wrote:
It is rather diffuclt to tell whether the camera did focus right where it should have focused, or if it only fused in a ballpark of a three feet error margin. Makes some difference, does not it?
Click to expand...
Isn't "in a ballpark of being in focus" also known as being in focus?
Click to expand...
Yes, but it does not say much about the abilty of the camea. Try it tigher, and with faster optic.

For example, I would not be expecting this to be missing focus,


Even with face detect on flowers :-)
 
amtberg said:
Just for you I went out and shot some cars in tracking mode. I've got to say I'm impressed. I did this with four or five cars and they all tracked beautifully.

http://www.pbase.com/adamt001/gh4_af_tracking

Shot with the e-shutter, Panasonic 45-150, burst mode High, large jpegs straight out of the camera.
Click to expand...
This is very good. I follow my toddler with center point often just to see what the limits of my GX7 are, i can say it wouldn't do this well on a moving car unless it's doing like 1mph. Also considering this is the first iteration of DFD, it's looking more and more like it has potential. I don't shoot a whole lot of action, but and i won't sacrifice what i like about my GX7 for it, but if i can get good tracking anyway, it's a good thing.
 
amtberg said:
Jorginho said:
amtberg said:
Jorginho said:
I know that DFD is just another word for CDAF as it is essentially just that with some algorithm.

Whatever it is called; why is no one going to some road, to some sportfield to some park were there are moving people, cars and/or birds and immediately try it out? I know 4K is the major feature but this DFD (depending on how good it is) is a close second. Well: at least to my mind. But like I said: I might overestimate this feature for most users..
Click to expand...
Why? Probably because most of us have to work and the cameras just started showing up on Monday! ;)
Click to expand...
I am pretty bussy with my job too, but the days are now long. You can easily shoot till 21 oçlock at my lattitude (52 north). But I am overenthusiastic at times, that is true also. I would rush out, not even reading the booklet (but taking it with me) and try it. everything else would be not important and not a reason not to go out and try it. But I am like that. Not necessarily a nice feature of mine. I am a weatherbuff. If it is my birthday and a supercell with tornadic tendenciess would be anywhere near me, I would leave my own birthdayparty and venture out to chase that storm down. "Have a nice party everyone, but I am gone. You'll know the way out whenever it suits you. Cheers". Just to say: it might be me and my character.
Click to expand...
Just for you I went out and shot some cars in tracking mode. I've got to say I'm impressed. I did this with four or five cars and they all tracked beautifully.

http://www.pbase.com/adamt001/gh4_af_tracking

Shot with the e-shutter, Panasonic 45-150, burst mode High, large jpegs straight out of the camera.
Click to expand...
thanks, this does look promising. I've never been very successful with this sort of shot sequence with my other m43 kit.
 
Sergey_Green said:
honeyiscool said:
Sergey_Green said:
Sergey_Green wrote:
It is rather diffuclt to tell whether the camera did focus right where it should have focused, or if it only fused in a ballpark of a three feet error margin. Makes some difference, does not it?
Click to expand...
Isn't "in a ballpark of being in focus" also known as being in focus?
Click to expand...
Yes, but it does not say much about the abilty of the camera.
Click to expand...
Actually it does., and it tells us a lot about you, LOL, btw, how much DoF is there on this one? LOL!!!

c16d015bb25c441bbb4c93380cce8153.jpg
 
Last edited:
Jorginho said:
amtberg said:
Jorginho said:
amtberg said:
Jorginho said:
I know that DFD is just another word for CDAF as it is essentially just that with some algorithm.

Whatever it is called; why is no one going to some road, to some sportfield to some park were there are moving people, cars and/or birds and immediately try it out? I know 4K is the major feature but this DFD (depending on how good it is) is a close second. Well: at least to my mind. But like I said: I might overestimate this feature for most users..
Click to expand...
Why? Probably because most of us have to work and the cameras just started showing up on Monday! ;)
Click to expand...
I am pretty bussy with my job too, but the days are now long. You can easily shoot till 21 oçlock at my lattitude (52 north). But I am overenthusiastic at times, that is true also. I would rush out, not even reading the booklet (but taking it with me) and try it. everything else would be not important and not a reason not to go out and try it. But I am like that. Not necessarily a nice feature of mine. I am a weatherbuff. If it is my birthday and a supercell with tornadic tendenciess would be anywhere near me, I would leave my own birthdayparty and venture out to chase that storm down. "Have a nice party everyone, but I am gone. You'll know the way out whenever it suits you. Cheers". Just to say: it might be me and my character.
Click to expand...
Just for you I went out and shot some cars in tracking mode. I've got to say I'm impressed. I did this with four or five cars and they all tracked beautifully.

http://www.pbase.com/adamt001/gh4_af_tracking

Shot with the e-shutter, Panasonic 45-150, burst mode High, large jpegs straight out of the camera.
Click to expand...
Wow that is very kind of you! Thank you. On the flip side: you can look trhough my gallery and find focustracking with my EPL5 and it did equally well. There is a German test that showed G6 doing that well. A really fast moving car is more of problem, so how fast was this one? Sports...pooh...not very succesfull with GH2 (to be expected) and EPL5. But many thanks for your effort!
Click to expand...
I'd estimate that the car was doing about 40 mph.
 
Hi Lab,

thanks for the information so far. What I'd like to know - if the new AF technology should be really working fine for action photgraphy - if it also does so with the µFT Zuikos. From what I've read it doesn't and if this is case, it would be a real pity and a deal breaker for me as I definitely won't and can't purchase a second set of µFT lenses.
 
DonParrot said:
Hi Lab,

thanks for the information so far. What I'd like to know - if the new AF technology should be really working fine for action photgraphy - if it also does so with the µFT Zuikos. From what I've read it doesn't and if this is case, it would be a real pity and a deal breaker for me as I definitely won't and can't purchase a second set of µFT lenses.
Click to expand...
 
Lab D said:
DonParrot said:
Hi Lab,

thanks for the information so far. What I'd like to know - if the new AF technology should be really working fine for action photgraphy - if it also does so with the µFT Zuikos. From what I've read it doesn't and if this is case, it would be a real pity and a deal breaker for me as I definitely won't and can't purchase a second set of µFT lenses.
Click to expand...
Click to expand...
 
Lab D said:
Sergey_Green said:
honeyiscool said:
Lab D said:
Sergey_Green wrote:
It is rather diffuclt to tell whether the camera did focus right where it should have focused, or if it only fused in a ballpark of a three feet error margin. Makes some difference, does not it?
Click to expand...
Isn't "in a ballpark of being in focus" also known as being in focus?
Click to expand...
Yes, but it does not say much about the abilty of the camera.
Click to expand...
Actually it does., and it tells us a lot about you, LOL, btw, how much DoF is there on this one? LOL!!!

c16d015bb25c441bbb4c93380cce8153.jpg
Click to expand...
a sequence with the dog running toward you would be great here…though you've already done more than your fair share so thanks :-)
 
amtberg said:
Jorginho said:
amtberg said:
Jorginho said:
I know that DFD is just another word for CDAF as it is essentially just that with some algorithm.

Whatever it is called; why is no one going to some road, to some sportfield to some park were there are moving people, cars and/or birds and immediately try it out? I know 4K is the major feature but this DFD (depending on how good it is) is a close second. Well: at least to my mind. But like I said: I might overestimate this feature for most users..
Click to expand...
Why? Probably because most of us have to work and the cameras just started showing up on Monday! ;)
Click to expand...
I am pretty bussy with my job too, but the days are now long. You can easily shoot till 21 oçlock at my lattitude (52 north). But I am overenthusiastic at times, that is true also. I would rush out, not even reading the booklet (but taking it with me) and try it. everything else would be not important and not a reason not to go out and try it. But I am like that. Not necessarily a nice feature of mine. I am a weatherbuff. If it is my birthday and a supercell with tornadic tendenciess would be anywhere near me, I would leave my own birthdayparty and venture out to chase that storm down. "Have a nice party everyone, but I am gone. You'll know the way out whenever it suits you. Cheers". Just to say: it might be me and my character.
Click to expand...
Just for you I went out and shot some cars in tracking mode. I've got to say I'm impressed. I did this with four or five cars and they all tracked beautifully.

http://www.pbase.com/adamt001/gh4_af_tracking

Shot with the e-shutter, Panasonic 45-150, burst mode High, large jpegs straight out of the camera.
Click to expand...
Super! Yet another feature I was anxious to see, is how much better e-shutter is at the faster readout of this camera. This isn't a perfect test for it, but it looks quite good. I expect the GX8 to be a killer stills camera, if it follows in the same foot steps of its predecessor (taking the best stills bits of its larger GH brother).
 
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