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Archive 2013 · Sony A7r shutter vibration

  
 
jcolwell
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p.17 #1 · Sony A7r shutter vibration


jaclarkaus wrote:
Yes, but that is with an IS lens .. add the stops back


Not for panning, like the last example - IS is off in that case.



Jan 13, 2014 at 09:16 PM
jaclarkaus
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p.17 #2 · Sony A7r shutter vibration


jcolwell wrote:
Not for panning, like the last example - IS is off in that case.


Why wouldn't you use Mode 2?



Jan 13, 2014 at 11:51 PM
Cliff L.
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p.17 #3 · Sony A7r shutter vibration


Everyone can rest easy - Sony says there is no shutter vibration in the A7R.

http://diglloyd.com/blog/2014/20140116_1-Sony-A7R-shutter-vibration.html



Jan 16, 2014 at 09:48 PM
Gary Clennan
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p.17 #4 · Sony A7r shutter vibration


Great - I feel much better now! I think there is likely a minor issue with vibration but not nearly as serious as some may claim.


Jan 17, 2014 at 12:50 AM
snapsy
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p.17 #5 · Sony A7r shutter vibration


hmm, pretty bad news for me and my adapted Canon IS lenses


Jan 17, 2014 at 12:51 AM
philber
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p.17 #6 · Sony A7r shutter vibration


The last line in Lloyd Chambers' paper in interesting: according to him, the Leica M type 240 has the same problem. That will make for happy campers!


Jan 17, 2014 at 01:21 AM
philip_pj
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p.17 #7 · Sony A7r shutter vibration


Lloyd never saw a camera that he could not find fault with, it is deeply surprising that the camera makers do not employ him as an engineering consultant to pre-release check every prototype.


Jan 17, 2014 at 05:28 AM
Cliff L.
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p.17 #8 · Sony A7r shutter vibration


philip_pj wrote:
Lloyd never saw a camera that he could not find fault with, it is deeply surprising that the camera makers do not employ him as an engineering consultant to pre-release check every prototype.


Not nearly as surprising as the number of issues these manufacturers miss when (or is it "if"?) they do their own pre-release checks...



Jan 17, 2014 at 08:52 AM
jcolwell
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p.17 #9 · Sony A7r shutter vibration


jcolwell wrote:
I often shoot handheld telephoto lenses at shutter speeds well below the "reciprocal of focal length" rule of thumb.

jaclarkaus wrote:
Yes, but that is with an IS lens .. add the stops back

jcolwell wrote:
Not for panning, like the last example - IS is off in that case.

jaclarkaus wrote:
Why wouldn't you use Mode 2?


For handheld BIF shooting, Mode 2 is fine for a straight, crossing flight path, but it doesn't work very well for an erratic flight path, as it can stabilize in horizontal or vertical axes, but it fights itself for diagonal panning or when changing between horizontal and vertical axes. It's similar to the problems with early generation IS when on a tripod.

I've found that when handheld panning with a heavy lens like the 500/4L IS, the system inertia keeps things nicely steady (for constant panning angular velocity), and so I don't need Mode 2. I will sometimes use Mode 2 for handheld panning with lighter lenses (e.g. 70-200/2.8L IS II), when there is a predictable path, like is often the case for motorcycle racing.

Of course, I will use Mode 2 for horizontal panning with the 500/4L IS, when the panning angular velocity is relatively slow. Most of the BIF and racing shooting that I do with the 500/4L IS is relatively close to the subjects, and so the panning rotation is pretty fast, and smooth.



Jan 17, 2014 at 09:28 AM
philip_pj
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p.17 #10 · Sony A7r shutter vibration


yes, molson, also true...you hope aircraft are better tested than what we get sometimes. All of these cameras can for sure be improved.


Jan 18, 2014 at 01:50 AM
Rikaro
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p.17 #11 · Sony A7r shutter vibration


molson wrote:
Everyone can rest easy - Sony says there is no shutter vibration in the A7R.

http://diglloyd.com/blog/2014/20140116_1-Sony-A7R-shutter-vibration.html


I'm quite disappointed at Sony as I have the A7R myself and i'm still having the same issue. I have to shoot at over 1/125 to reduce shake. Auto iso doesn't work anymore because at lower light conditions the camera would lower the shutter speed to 1/60.

The rep from Sony obviously doesn't know what he's talking about.



Jan 21, 2014 at 01:00 PM
philip_pj
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p.17 #12 · Sony A7r shutter vibration


Or maybe he does know, but it is different from what he can say. They would be reeling from several of the senior and very public figures making a well-publicised fuss on their ass.

We don't know enough about what exactly they can do in firmware. They also have a heavy (860 gram) long G zoom coming out soon, that one sits on a typical spindly lens tripod mount arm - how will it go on the a7r?




Jan 21, 2014 at 09:58 PM
Peter Le
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p.17 #13 · Sony A7r shutter vibration


Rikaro wrote:
I'm quite disappointed at Sony as I have the A7R myself and i'm still having the same issue. I have to shoot at over 1/125 to reduce shake. Auto iso doesn't work anymore because at lower light conditions the camera would lower the shutter speed to 1/60.

The rep from Sony obviously doesn't know what he's talking about.


I don't disbelieve you ...but I can't seem to reproduce this...... I'm getting tack sharp photo's at 1/60 and all shutter seeds around there. Tack sharp at 100%......I'm using the battery grip on tri-pod. I understand adding some weight solves this...... could the battery grip be solving this shutter problem ?



Jan 21, 2014 at 10:19 PM
ulrikft2
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p.17 #14 · Sony A7r shutter vibration


Peter Le wrote:
I don't disbelieve you ...but I can't seem to reproduce this...... I'm getting tack sharp photo's at 1/60 and all shutter seeds around there. Tack sharp at 100%......I'm using the battery grip on tri-pod. I understand adding some weight solves this...... could the battery grip be solving this shutter problem ?


I'm getting nice results from my rokkor 58/1.2 at 1/60 myself. I'm a big/heavy fellow though, so that might explain it.



Jan 22, 2014 at 03:11 AM
snapsy
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p.17 #15 · Sony A7r shutter vibration


Lloyd tries to go viral on the issue:

http://diglloyd.com/blog/2014/20140123_2-SonyA7R-shutterVibration-CallForAction.html
http://www.sonyalpharumors.com/diglloyd-photographers-ask-sony-to-address-the-a7r-shutter-vibration-issue/



Jan 23, 2014 at 02:34 PM
sflxn
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p.17 #16 · Sony A7r shutter vibration


Lloyd did a huge disservice to the cause. Really huge disservice. The issue is real (it doesn't affect me personally), but Lloyd ran around like a whiny little girl about it. He claimed there was vibration even at 55mm, which there isn't. His stupidity in his testing, which no one has been able to reproduce, claimed there was a fraction of a pixel blur with the 55mm. The real problem is the several pixel blur with longer lenses than 100mm when you mount the camera-lens setup in a way that doesn't allow the body to dampen the vibration. So, he took his non-issue to Sony, and they checked it out (probably with the 55mm), and probably thought this guy is an idiot and decided the internet was overreacting.


Jan 23, 2014 at 03:12 PM
dennishh
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p.17 #17 · Sony A7r shutter vibration


+1 to Lloyd Chambers.
Did you hear the breaking news from Lloyd on his test of the Ferrari LaFerrari, "I would love to recommend the new Ferrari but there is some minor vibration above 300 miles an hour when bucking a headwind in a driving rain so I can not recommend this car to anyone until a new firmware update from Ferrari"



Jan 23, 2014 at 04:11 PM
philip_pj
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p.17 #18 · Sony A7r shutter vibration


Ashtray don't work on my Williams F1 - Sebastian Vettel
No grab handle on the MotoGP Honda - Marc Marquez

Both refuse to participate until these grave faults are rectified. As if.

It's interesting that it's almost certain none of these dudes have ever used Sony. They sure like to amp up the criticism. Soon as I saw that Ming character was involved the exercise lost even the thinnest shred of cred that remained at that stage.

It also shows they know nothing about the Japanese character in such affairs - there are much better ways of doing this with a much higher chance of success.

Unless of course the aim was simply to maximise public embarrassment for the maker, who just produced a product none of their favourites had been prepared to even try to date. One which happens to deliver image quality of a level not before seen in this format.



Jan 23, 2014 at 04:31 PM
briantho
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p.17 #19 · Sony A7r shutter vibration


It's a smart move.

Sony are probobly already working on a FW fix for this problem, either an option to enable FCS or an optional delay between shutter actions.

When the fix is released, which should be very soon, Lloyd can take credit for being the one who pushed Sony to take action.



Jan 23, 2014 at 04:43 PM
bcaslis
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p.17 #20 · Sony A7r shutter vibration


I don't think EFCS can be added to the A7r with a firmware change. It needs to be part of the sensor design and it clearly is not, otherwise it would have been there to begin with.



Jan 23, 2014 at 04:44 PM
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