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Olympus OM-D E-M1 Mark II The second 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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  #151  
Old 3rd March 2018
Olybirder Olybirder is online now
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Re: Firmware Update

I think I may have found the answer to my post above in this article.

In the section entitled '5-level C-AF tracking sensitivity settings' it states that +2 (which is now called High) is suitable for moving subjects which quickly change direction toward and away from the camera. –2 (now called Low) is for maintaining focus on the main subject while other moving subjects pass in front. So I suppose it refers to sensitivity to unwanted, distracting elements. Now, can I remember that?

Ron
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  #152  
Old 3rd March 2018
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Re: Firmware Update

I found that a very useful article, printed off relevant sections and have been carrying them around in my camera bag. Believe I'm correct in saying, that article's not accessible through the UK site. Seems like there's useful info available but it takes a lot of digging to find it !


Mark.
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  #153  
Old 3rd March 2018
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Re: Firmware Update

A good way to check C-AF tracking sensitivity is say focus on a wall with a roof in the back ground then with caf engaged lift the camera from wall to roof and visa versa .
high it will change quickly low it will change slowly .

Rob.
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  #154  
Old 3rd March 2018
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Re: Firmware Update

The same sort of naming problems apply to the Nikon version of the same.

I found it easier to remember -2 = 'tight' = 'hangs on tight to the subject when interfering things cross in front'. Oh well...
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  #155  
Old 3rd March 2018
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Re: Firmware Update

I’d make a guess that high sensitivity would mean it would quickly switch from one target to another, whereas low sensitivity would mean it wouldn’t be so quick to switch to, say, a twig instead of a target bird.
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  #156  
Old 3rd March 2018
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Re: Firmware Update

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Originally Posted by Olybirder View Post
I see they have changed the wording for C-AF Lock. It is now called C-AF Sensivity and ranges from High (+2) to Low (–2). Can anybody tell me definitively what that means? Does High Sensivity mean that it sticks well to a subject which is moving erratically and unpredictably. Or does it mean that it will be distracted by other objects in the background? The Info button doesn't help and neither does the manual.

Ron
I wrote this for another forum. It isn't really sensitivity, it simply controls the delay before it starts refocussing. +2 means it starts changing focus without delay. Here is the whole story:

I have been experimenting with the C-AF sensitivity setting, now that I have upgraded to the new firmware v2.0. Go to Cog/A1, row 4.

To make sure I understood it, I stood with a window frame near me and a view out of the window. I set the camera to C-AF holding the shutter button half down and moved the focus point from the window frame to the distant view and back, many times.

1. First I tried sensitivity -2, the lowest setting. When I moved the focus point from near to far or far to near there was a long delay and then the focus quickly changed.

2. Then I tried the default sensitivity, 0. Now there was still a delay before it adjusted the focus, but only a short delay.

3. Then I tried sensitivity +2, the highest setting. Now there was no delay, it very quickly changed the focus.

All these tests were done with the new small single focus point. C-AF worked perfectly with the small focus point.

What I deduce is that I want the highest sensitivity, the +2 setting. I want the focus to change as quickly as possible to whatever target I am aiming at. And if the target is moving closer to me or further away, I want the camera to adjust to that immediately.

The +2 setting makes it behave like my old Nikon DSLR. Its AF-C simply worked all the time without delay.

I understand that the point of the lower settings is that if one loses sight of the target for a moment, or if I fail to keep the focus point on the target, then the focus will stay the same for a bit before changing. But I'm not convinced this is such a good idea. If I do lose focus long enough for the focus to change, then it will also take longer to reacquire the correct focus after I am aiming at the focus point again.

So if people are going to do C-AF tests to see how well it works now we have the new firmware, please could they include tests using a sensitivity of +2, which I think in most cases will be best.
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  #157  
Old 5th March 2018
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Re: Firmware Update

Quick question. Having updated the OM -D -E-M1ii and 8mm f1.8 fisheye lens the literature mentions the ability to go from fisheye to wide angle.

Having spent time trawling through many options I cannot find how to perform this operation! I thought I could use both PC and camera but this has defeated me!

I also cannot find an answer on this forum so, please, what's the answer!

Ian who started with an OM2n, then OM4TI with a 35 to 80mm f2.8 lens, numerous OM digital cameras and at last have found one that nearly always delivers! Just back from Australia with around 1,600 images and a talk based on trams to do by April for which the video function has produced some excellent footage.
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  #158  
Old 5th March 2018
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Re: Firmware Update

Quote:
Originally Posted by ianinsuffolk View Post
Quick question. Having updated the OM -D -E-M1ii and 8mm f1.8 fisheye lens the literature mentions the ability to go from fisheye to wide angle.

Having spent time trawling through many options I cannot find how to perform this operation! I thought I could use both PC and camera but this has defeated me!

I also cannot find an answer on this forum so, please, what's the answer!
See page 193 of the new version of the manual.
You have to have the lens on the camera for the option to be enabled.

See Menu/Cog/J1/Fisheye compensation
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  #159  
Old 5th March 2018
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Re: Firmware Update

Quote:
Originally Posted by ianinsuffolk View Post
Quick question. Having updated the OM -D -E-M1ii and 8mm f1.8 fisheye lens the literature mentions the ability to go from fisheye to wide angle.

Having spent time trawling through many options I cannot find how to perform this operation! I thought I could use both PC and camera but this has defeated me!

I also cannot find an answer on this forum so, please, what's the answer!
Hi Ian
I don't have this lens and don't know what software you use to process your images, but I have the Samyang 7.5mm fisheye and in Lightroom I can change the lens profile to a Canon 15mm which 'de-fishes' the image to a certain extent and gives a wide angle effect.
There is a thread here on the forum about 'de-fishing' images that recommends specialist software to do the job, but I couldn't find the thread just now; I'll have another look.

Here it is
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  #160  
Old 5th March 2018
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Re: Firmware Update

Thanks Growltiger! I have looked up the details and it works!

Ian
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  #161  
Old 5th March 2018
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Re: Firmware Update

Quote:
Originally Posted by IainMacD View Post
Hi Ian
I don't have this lens and don't know what software you use to process your images, but I have the Samyang 7.5mm fisheye and in Lightroom I can change the lens profile to a Canon 15mm which 'de-fishes' the image to a certain extent and gives a wide angle effect.
There is a thread here on the forum about 'de-fishing' images that recommends specialist software to do the job, but I couldn't find the thread just now; I'll have another look.

Here it is
There is a lens profile for the Samyang 7.5mm fisheye in Lightroom. My version is Classic CC.
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  #162  
Old 6th March 2018
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Re: Firmware Update

Quote:
Originally Posted by Shaw View Post
There is a lens profile for the Samyang 7.5mm fisheye in Lightroom. My version is Classic CC.
Thanks for that, I hadn't realised.
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  #163  
Old 7th March 2018
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Re: Firmware Update

A s-af shot seems to be ok after the update used single small focus point.
Rob.


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  #164  
Old 7th March 2018
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Re: Firmware Update

Quote:
Originally Posted by ianinsuffolk View Post
Quick question. Having updated the OM -D -E-M1ii and 8mm f1.8 fisheye lens the literature mentions the ability to go from fisheye to wide angle.

Having spent time trawling through many options I cannot find how to perform this operation! I thought I could use both PC and camera but this has defeated me!

I also cannot find an answer on this forum so, please, what's the answer
Am I right in believing that this is an in-camera "live" defish? If so can OV3 defish a RAW file from an 8mm lens ?
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  #165  
Old 7th March 2018
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Re: Firmware Update

Υes it can, OV3 can defish Raw files from fisheye 8/1.8 prior to firmware v2.0 update.
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