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Olympus OM-D E-M1 The first Micro Four Thirds camera that offers phase detect focusing so you can use Four Thirds DSLR lenses normally as well a Micro Four Thirds lenses.

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Old 25th February 2015
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15 frame sequence E-M1 BIF after firmware update

I don't think I could have done this prior to yesterday's firmware update:

































All these shots are cropped to a quarter of the original frame.

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Old 25th February 2015
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Re: 15 frame sequence E-M1 BIF after firmware update

I feel it is better after the update - there was much less losing focus completely and 10fps is a bonus. I noticed that if the first frame wasn't in focus the rest were less likely to be as well but in my example sequence it does show that it can keep focus throughout a long sequence - the gull was definitely further away at the end of the sequence. Maintaining focus even when the subject is off-centre is better too. You just need to get the first in the sequence right.

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Old 25th February 2015
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Re: 15 frame sequence E-M1 BIF after firmware update

Big thanks for this Ian, I have updated the firmware but yet to try it out - your images clearly demonstrate what the new firmware/camera can deliver.

Excited!!
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Old 25th February 2015
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Re: 15 frame sequence E-M1 BIF after firmware update

Please don't expect a magical difference; it's better but you still need luck and skill (I had some luck ) to get consistently good results and I do feel it is important that the very first shot is in focus as I noticed that sequences where the first shot was not in focus were generally of relatively poor quality. But there is no doubt that C-AF has been noticeably improved for applications like BIF.

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Old 25th February 2015
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Re: 15 frame sequence E-M1 BIF after firmware update

It's certainly a step in the right direction.
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Old 25th February 2015
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Re: 15 frame sequence E-M1 BIF after firmware update

I've only been able to try it with our dogs when they actually move the way I needed them & the results certainly do look promising.
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Re: 15 frame sequence E-M1 BIF after firmware update

Agreed, I had a quick test at lunch time today, birds all at some distance so nothing really worthy of posting but the improvement in C-AF is marked I would say.
If they could now get the initial lock a bit quicker I would be very happy indeed
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Old 25th February 2015
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Re: 15 frame sequence E-M1 BIF after firmware update

Ian, which lens was this?
I have noticed much quicker focusing with the 50-200.
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Re: 15 frame sequence E-M1 BIF after firmware update

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Originally Posted by Beagletorque View Post
Ian, which lens was this?
I have noticed much quicker focusing with the 50-200.
75-300mm F4.8-6.7 II
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Old 25th February 2015
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Re: 15 frame sequence E-M1 BIF after firmware update

yes I would support Ian and Greytops findings the new firmware using CAF and H seq is the way to go for BIF with the EM1. I used the 50-200mmswd lens. The key thing being to get the first frame focus locked. I was getting in excess of 10 consecutive frames and feel that I can improve on that with more practice and better environment.
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Old 26th February 2015
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Re: 15 frame sequence E-M1 BIF after firmware update

Quote:
Originally Posted by Beagletorque View Post
Ian, which lens was this?
I have noticed much quicker focusing with the 50-200.
Quote:
Originally Posted by Greytop View Post
75-300mm F4.8-6.7 II
That's correct.

Conditions were far from ideal as literally five minutes after I went out the front door the late afternoon sun was obscured by cloud (always happens!).

Some good light is promised on or off in the next day or two so I will try some Four Thirds lenses given the chance (50-200, 90-250 and 300).

Incidentally, I used all AF points mode and Andy Elliot recommended C-AF Lock off.

I'd like to get the shutter speed up to 1/2000th and ISO down to 400 if possible. Better light and a faster lens will obviously help. I also had to add brightness in post processing (from RAW) so while I had centre-weight metering mode on plus +0.7EV exposure bias, I might increase the bias.

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Last edited by Ian; 26th February 2015 at 09:36 AM.
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Old 26th February 2015
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Re: 15 frame sequence E-M1 BIF after firmware update

Ian, your mention of using centre weighted metering is what I had thought to do too (not something I have really used much at all & is usually full or spot) thinking of the subject passing through different lighting environments, although Manual could work too if planned before hand.

I'm still interested to see how well the 50-200 SWD lens performs because that may be the lens I might get later this year if there is someone here willing to part with theirs at the right price.
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Old 26th February 2015
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Re: 15 frame sequence E-M1 BIF after firmware update

Quote:
Originally Posted by Ian View Post
Incidentally, I used all AF points mode and Andy Elliot recommended C-AF Lock off.
I was experimenting with C-AF yesterday afternoon and tried various AF points settings. I, too, found that All AF points worked best but sometimes the green box landed on the clouds instead of the bird, so I had to keep pressing the shutter button until it was in the right place. All AF points is no use if the bird is in front of a busy background, such as reeds or trees. Using single AF point was all right if I hit the subject first time but if I missed and 'caught' the sky instead the focusing would go to infinity and I could no longer see the bird in the viewfinder to try again. I suppose plenty of practice will help.

Ian could you please explain in simple terms exactly what the C-AF Lock is and how the various settings work?

Ron
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Old 26th February 2015
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Re: 15 frame sequence E-M1 BIF after firmware update

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Originally Posted by Olybirder View Post
Ian could you please explain in simple terms exactly what the C-AF Lock is and how the various settings work?
I second this request as I do not really understand what the different settings do.
I note you quote being advised by Andy Elliot (presumably an expert at BIF with an EM-1? I don't know who he is) but Olympus themselves recommend having C-AF lock on "standard" by which I assume they mean normal as there is no "standard" setting. All rather confusing!
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Old 26th February 2015
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Re: 15 frame sequence E-M1 BIF after firmware update

Quote:
Originally Posted by Olybirder View Post
I was experimenting with C-AF yesterday afternoon and tried various AF points settings. I, too, found that All AF points worked best but sometimes the green box landed on the clouds instead of the bird, so I had to keep pressing the shutter button until it was in the right place. All AF points is no use if the bird is in front of a busy background, such as reeds or trees. Using single AF point was all right if I hit the subject first time but if I missed and 'caught' the sky instead the focusing would go to infinity and I could no longer see the bird in the viewfinder to try again. I suppose plenty of practice will help.

Ian could you please explain in simple terms exactly what the C-AF Lock is and how the various settings work?

Ron
Quote:
Originally Posted by Miketoll View Post
I second this request as I do not really understand what the different settings do.
I note you quote being advised by Andy Elliot (presumably an expert at BIF with an EM-1? I don't know who he is) but Olympus themselves recommend having C-AF lock on "standard" by which I assume they mean normal as there is no "standard" setting. All rather confusing!
Using the Info key during Menu set up, when selecting C-AF Lock, the assisting Info given is "Adjusts the target activity level during C-AF." So from that, maybe erratic moving subjects would benefit with it being set to High, although thinking back to previous manuals (instructions) slower would be beneficial if there are objects interrupting the view so that the target point on the screen doesn't go erratic looking for the target subject.
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