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Archive 2013 · Pany 35-100mm stabilization problem
  
 
snapsy
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p.1 #1 · p.1 #1 · Pany 35-100mm stabilization problem


Got the lens 2 days ago. Great IQ but the OIS is giving me zero improvement vs OIS disabled. In fact it's a little worse. Stranger still is that when I disable the OIS and use the OM-D's IBIS it gets even worse. Can others share there experience with the OIS on this lens, and using it with the OM-D? Btw, I'm making sure to turn off IBIS when OIS is on. All my testing is at 100mm so far at 1/100. Here are my results:

IBIS disabled, OIS disabled: 4/5 sharp
IBIS disabled, OIS enabled: 3/5 sharp
IBIS enabled, OIS disabled: 1/5 sharp. nervous shake to image



Jul 19, 2013 at 04:10 AM
snapsy
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p.1 #2 · p.1 #2 · Pany 35-100mm stabilization problem


I've read about shutter shock but never ran into the issue before. For kicks I just took 5 photos at 1/100 w/IBIS with the OMD's shutter shock feature off vs on (exposure delay mode). With the exposure delay mode off all 5 images have a nervous shake to them. With the exposure delay mode on (set to 1 second) all 5 images were sharp. This was hand-held. hmm..


Jul 19, 2013 at 04:29 AM
snapsy
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p.1 #3 · p.1 #3 · Pany 35-100mm stabilization problem


Lastly, if I shoot at 1/25 w/IBIS I get 100% sharp photos even with the exposure delay mode feature off. I guess this kinda proves the nervous shake I see a 1/50 and 1/100 is shutter shock; that's the range of shutter speeds that's been reported before for the problem. I don't recall ever seeing this on < 100mm lenses on my OMD.








Jul 19, 2013 at 04:36 AM
snapsy
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p.1 #4 · p.1 #4 · Pany 35-100mm stabilization problem


Final postscript for my thread of 1 Dialing in an anti-shock delay of 1/4 second seems to do the trick with acceptable shutter lag. Here's a hand-held shot at 1/10 @ 93mm (186mm FOV) using IBIS on my OMD:

Image



Jul 19, 2013 at 05:15 AM
FlyPenFly
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p.1 #5 · p.1 #5 · Pany 35-100mm stabilization problem


Hmmm interesting, does the delay affect both IBIS and OIS?


Jul 19, 2013 at 06:09 AM
snapsy
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p.1 #6 · p.1 #6 · Pany 35-100mm stabilization problem


FlyPenFly wrote:
Hmmm interesting, does the delay affect both IBIS and OIS?


Good question. I just tried OIS and don't see the problem. So it appears to be an issue with the IBIS only. Doing a quick web search I found this.



Jul 19, 2013 at 03:22 PM
Jman13
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p.1 #7 · p.1 #7 · Pany 35-100mm stabilization problem


Very bizarre. I've had no issues at all with the 35-100 unless you're shooting with OIS enabled at extremely high shutter speeds (like 1/3200-1/4000s). I use the OM-D's IBIS with this lens, as it stabilizes a little faster and gives me about an extra stop over the OIS, but I have found the OIS to be very good for 2-3 stops and the OM-D's IBIS with this lens to be good for 3-4 stops. Very bizarre to see it with the IBIS. Possible your IS switch isn't working? (so that it's actually trying to use OIS with IBIS?)

In fact, of all the Panny OIS lenses I've used, the 12-35 and 35-100 have been the very best, with no major issues (except that super high shutter speed thing), and I've had no issues at all with the Oly IBIS.



Jul 19, 2013 at 03:27 PM
snapsy
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p.1 #8 · p.1 #8 · Pany 35-100mm stabilization problem


Jman13 wrote:
Very bizarre. I've had no issues at all with the 35-100 unless you're shooting with OIS enabled at extremely high shutter speeds (like 1/3200-1/4000s). I use the OM-D's IBIS with this lens, as it stabilizes a little faster and gives me about an extra stop over the OIS, but I have found the OIS to be very good for 2-3 stops and the OM-D's IBIS with this lens to be good for 3-4 stops. Very bizarre to see it with the IBIS. Possible your IS switch isn't working? (so that it's actually trying to use OIS with IBIS?)

In fact,
...Show more

I verified the switch is working because if I mount the lens on a GF2 I see the on-screen indication of OIS changing. I've never had an issue with IBIS before either, with any lens. I've repeated the experiment 5 times and each time it confirms the same - any shutter speed between 1/40 through at least 1/100 demonstrates nervous blurring with my 35-100. I found this reference online as well:

"IBIS has the dreaded shutter shock issue. The fast shutter movement (e.g. 1/60, 1/125) & firm hands grip might send enough shock to the sensor so that IBIS might try to fix it which might create double imaging sometimes. All of previous PENs have such issue. That's why PENs have anti-shock feature that delays photo taking where 1/8 is the shortest delay. Press shutter button, opens shutter curtain, waits, then captures lighting info. In-Lens IS has no such issue. Also ILIS keeps the sensor cool."



Jul 19, 2013 at 03:32 PM
FlyPenFly
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p.1 #9 · p.1 #9 · Pany 35-100mm stabilization problem


Hmmm why would IBIS heat up the sensor? That seems a bit sketchy to me.

These olympus vs panasonic compatibility problems are a bit of a pain what with P20mm banding on Oly cameras as well as 7-14mm blobbing on the OM-D.



Jul 19, 2013 at 03:35 PM
snapsy
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p.1 #10 · p.1 #10 · Pany 35-100mm stabilization problem


FlyPenFly wrote:
Hmmm why would IBIS heat up the sensor? That seems a bit sketchy to me.

These olympus vs panasonic compatibility problems are a bit of a pain what with P20mm banding on Oly cameras as well as 7-14mm blobbing on the OM-D.


I think that poster just assumed a sensor moving mechanism would generate heat - not sure it's true and I don't think it has anything to do with the problem anyway. I do know the shake issue is real, for me at least



Jul 19, 2013 at 03:41 PM
 

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FlyPenFly
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p.1 #11 · p.1 #11 · Pany 35-100mm stabilization problem


There is a chance your body might be the problem and needs repair.

This person was having IBIS problems on their E-PL5

http://www.mu-43.com/f42/desperate-2-axis-ibis-epl5-48925/

I did some tests and found I had no problems. I have no doubt he was experiencing legitimate issues though.

http://www.mu-43.com/f42/desperate-2-axis-ibis-epl5-48925/index4.html



Jul 19, 2013 at 03:48 PM
snapsy
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p.1 #12 · p.1 #12 · Pany 35-100mm stabilization problem


FlyPenFly wrote:
There is a chance your body might be the problem and needs repair.

This person was having IBIS problems on their E-PL5

http://www.mu-43.com/f42/desperate-2-axis-ibis-epl5-48925/

I did some tests and found I had no problems. I have no doubt he was experiencing legitimate issues though.

http://www.mu-43.com/f42/desperate-2-axis-ibis-epl5-48925/index4.html


Thanks for the links. Many who responded to the OP on that thread have seen the issue too. From what I've read it's lens specific, probably relating to how the vibration resonates back to the body. Perhaps there is variance from body to body but it seems to be a pretty widespread problem.



Jul 19, 2013 at 04:15 PM
FlyPenFly
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p.1 #13 · p.1 #13 · Pany 35-100mm stabilization problem


The lens difference was that he uses a Sigma 60mm and I was using an Olympus 60mm, that could be significant?

I think there's a possibility that the IBIS systems in these Olympus cameras are fragile and can have misalignment issues.



Jul 19, 2013 at 04:23 PM
snapsy
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p.1 #14 · p.1 #14 · Pany 35-100mm stabilization problem


FlyPenFly wrote:
The lens difference was that he uses a Sigma 60mm and I was using an Olympus 60mm, that could be significant?

I think there's a possibility that the IBIS systems in these Olympus cameras are fragile and can have misalignment issues.


I just checked all my lenses, including a 100-300, and none demonstrate the issue except for the 35-100mm.



Jul 19, 2013 at 04:40 PM
FlyPenFly
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p.1 #15 · p.1 #15 · Pany 35-100mm stabilization problem


Hmmmm.... I wonder then if it's a specific lens resonance issue... maybe Olympus only checks their lenses.


Jul 19, 2013 at 04:43 PM
Jman13
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p.1 #16 · p.1 #16 · Pany 35-100mm stabilization problem


Still sounds odd. I can't say I've ever had a single image with the 35-100 on the OM-D have this kind of blur in these shutter speed ranges. It is my go-to lens for pretty much everything over 35mm, unless I'm going for a specific look or shooting macro. I've shot a LOT with it over the past 9 months...probably 4,000 frames with that combo, and no issues.


Jul 19, 2013 at 04:47 PM
snapsy
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p.1 #17 · p.1 #17 · Pany 35-100mm stabilization problem


Jman13 wrote:
Still sounds odd. I can't say I've ever had a single image with the 35-100 on the OM-D have this kind of blur in these shutter speed ranges. It is my go-to lens for pretty much everything over 35mm, unless I'm going for a specific look or shooting macro. I've shot a LOT with it over the past 9 months...probably 4,000 frames with that combo, and no issues.


If you have the time can you do a controlled experiment on your OM-D and 35-100? Handling the camera from a focus chart near MFD @ 100mm and shooting at 1/100, can you take 5 photos with no anti-shock delay and then 5 photos with a 1/4 second delay and compare the two? Both sets should have IBIS set to mode 1 and OIS disabled. Thanks!



Jul 19, 2013 at 06:16 PM
Jman13
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p.1 #18 · p.1 #18 · Pany 35-100mm stabilization problem


snapsy wrote:
If you have the time can you do a controlled experiment on your OM-D and 35-100? Handling the camera from a focus chart near MFD @ 100mm and shooting at 1/100, can you take 5 photos with no anti-shock delay and then 5 photos with a 1/4 second delay and compare the two? Both sets should have IBIS set to mode 1 and OIS disabled. Thanks!


I can try, but I probably won't have time to do it until Sunday or Monday.



Jul 19, 2013 at 06:21 PM
Jman13
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p.1 #19 · p.1 #19 · Pany 35-100mm stabilization problem


Quick test....this is 100mm, f/2.8, not really at MFD (when I did it, I had forgotten that part), but not far either...about 4-5 feet away. I had to shoot at ISO 6400 to shoot at 1/100 in this lighting, but no real discernible difference, at least to my eye. I also don't have a focus chart, so I focused on books (all aligned the same so no misfocus possibility).

Here are four 100% crops from each mode (Processing in LR 5):











Jul 19, 2013 at 09:22 PM
Mescalamba
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p.1 #20 · p.1 #20 · Pany 35-100mm stabilization problem


Not sure if latest 5-axis create some heat, but regular in body stabilisation like in Sony does. It was reason why early dSLTs had issues with heat while capturing video.

Given how 5-axis work I sorta doubt it creates too much heat waste.

Theres either some problem with lens or body, cause Panasonic OIS does work, maybe not that good as IBIS, but it does work.

Just idea, is firmware latest?



Jul 19, 2013 at 10:06 PM
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