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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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  #46  
Old 4th March 2015
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Re: 15 frame sequence E-M1 BIF after firmware update

Cliff - the benefits should be apparent whatever rate for 'H' you select. The maximum actual rate will be dictated by the lens - i.e. How fast the lens aperture can close down and open for each shot.
For prime lenses, shooting wide open at the max aperture removes this limit as the aperture doesn't need to move. For zoom lenses it is more complicated. At a given focal length, the lens might have a real maximum aperture and maximum selectable that differ.

As an example, the 14-35 f2 is actually a 14-35 f1.8-f2, with the aperture being closed down slightly at focal lengths less than 35mm to give you a 'constant' zoom. This means if you select f2, you'll get the max fps at 35mm, but it will slow down at wider focal lengths irrespective of which f no you dial in. This effect is seen on many of the zoom lenses.

Cheer

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  #47  
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Re: 15 frame sequence E-M1 BIF after firmware update

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Originally Posted by oly_om View Post
Cliff - the benefits should be apparent whatever rate for 'H' you select. The maximum actual rate will be dictated by the lens - i.e. How fast the lens aperture can close down and open for each shot.
For prime lenses, shooting wide open at the max aperture removes this limit as the aperture doesn't need to move. For zoom lenses it is more complicated. At a given focal length, the lens might have a real maximum aperture and maximum selectable that differ.

As an example, the 14-35 f2 is actually a 14-35 f1.8-f2, with the aperture being closed down slightly at focal lengths less than 35mm to give you a 'constant' zoom. This means if you select f2, you'll get the max fps at 35mm, but it will slow down at wider focal lengths irrespective of which f no you dial in. This effect is seen on many of the zoom lenses.

Cheer

Andy
Thanks Andy. That explains it better for me too.

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  #48  
Old 5th March 2015
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Re: 15 frame sequence E-M1 BIF after firmware update

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Originally Posted by oly_om View Post
Worth remembering with the FT glass, they were never designed to run at 9fps. So if you use them wide-open, no problem, stop them down and the aperture mechanism can't keep up and you frame rate will drop .
You are right regarding this. Do you have figures or estimates how long it takes to open/close the iris?

On the other hand shooting wide open increases the risk of not getting focus where you do want it - head/eye. As example, say a moving subject 15-20 meters away. The depth of field is about +/15 cm only at F/2.8. At F/5.6 it is around +/- 30cm. Having some more leeway to workaround the limitations in AF capability is maybe not a bad thing...

What gives highest chance getting at least one keeper from a sequence of same time length with more or less same distance to subject? More frames with less DOF, or fewer frames with more DOF? I will test when next opportunity is given. Probably on gulls since most numerous and predictable.
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  #49  
Old 5th March 2015
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Re: 15 frame sequence E-M1 BIF after firmware update

Hi Tord, don't forget as a rough guide you can look at the clock in the exif info for fps and count the frames with the same time logged, look at Ian's shots in the op, or just try it on your own settings

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  #50  
Old 6th March 2015
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Re: 15 frame sequence E-M1 BIF after firmware update

Interesting "review" here...

http://www.furnfeather.net/Reviews/3...mwareTest.html
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Re: 15 frame sequence E-M1 BIF after firmware update

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Originally Posted by Beagletorque View Post
That was helpful & encouraging (especially as I've just bought a used 50-200 SWD lens, in very good condition though).
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Re: 15 frame sequence E-M1 BIF after firmware update

Yes. I think as has already been said, keep the aperture maxed out for fastest frame rate. Not a problem on the 50-200 as it is sharp wide open.
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Old 6th March 2015
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Re: 15 frame sequence E-M1 BIF after firmware update

I had my first opportunity to test my E-M1 with the firmware 3 update yesterday.

I have little experience in photographing BIF however, I set the camera to C-AF and H sequential, I was pleased with the results and I think I achieved circa 50% keeper rate, which seems good for a first attempt.















Encouraging results I think.

Dave
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Old 6th March 2015
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Re: 15 frame sequence E-M1 BIF after firmware update

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Thanks for that, an interesting read.
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Old 6th March 2015
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Re: 15 frame sequence E-M1 BIF after firmware update

I'm delighted with the v3.0 upgrade with my 50-200 SWD. However, I have discovered two snags when using Lightroom. Firstly when you import a sequence from the card it does not put them in the library in the strict order in which they were shot. The second snag is that you end up with hundreds more photos than you would otherwise have taken!
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Re: 15 frame sequence E-M1 BIF after firmware update

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I'm delighted with the v3.0 upgrade with my 50-200 SWD. However, I have discovered two snags when using Lightroom. Firstly when you import a sequence from the card it does not put them in the library in the strict order in which they were shot. The second snag is that you end up with hundreds more photos than you would otherwise have taken!
The first problem I don't have as I import mine with OV3, but the 2nd problem.......? I guess we'll have to learn to live with it.
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Re: 15 frame sequence E-M1 BIF after firmware update

I can live with the second issue Ross because the quality of the images is so good. Incidentally, I see you are in the Blue Mountains, i have a relative who lives in Leura.
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  #58  
Old 7th March 2015
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Re: 15 frame sequence E-M1 BIF after firmware update

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I can live with the second issue Ross because the quality of the images is so good. Incidentally, I see you are in the Blue Mountains, i have a relative who lives in Leura.
Yes & Leura is a lovely town. Conversely, I have several rellies scattered around in the UK (Wales & England & in New Zealand too).

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I fiddle with violins (when I'm not fiddling with a camera).
Flickr: https://www.flickr.com/photos/ross-the-fiddler/
Cameras: OM-D E-M1 & Mk II, Olympus Stylus 1, OM-D E-M5.
Lenses: M.ZD7-14mm f2.8 PRO Lens, M.ZD12-40mm f2.8 PRO Lens, M.ZD40-150mm f2.8 PRO Lens, MC-14, MC-20, M.ZD12-50, M.ZD60 Macro, M.ZD75-300 Mk II, MMF-3, ZD14-54 II, Sigma 150mm F2.8 APO Macro DG HSM.
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Re: 15 frame sequence E-M1 BIF after firmware update

Quote:
Originally Posted by DavyG View Post
I had my first opportunity to test my E-M1 with the firmware 3 update yesterday.

I have little experience in photographing BIF however, I set the camera to C-AF and H sequential, I was pleased with the results and I think I achieved circa 50% keeper rate, which seems good for a first attempt.

...

Encouraging results I think.

Dave
Agree, these look good to me.
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Old 7th March 2015
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Re: 15 frame sequence E-M1 BIF after firmware update

Quote:
Originally Posted by Glenn S View Post
I'm delighted with the v3.0 upgrade with my 50-200 SWD. However, I have discovered two snags when using Lightroom. Firstly when you import a sequence from the card it does not put them in the library in the strict order in which they were shot.
When importing to Lightroom, go to the bottom right hand main window, and, beside 'Thumbnails' you will see 'sort' and if you scroll down to 'Capture Time' it will import in order of shot taken.
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