alcelc
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Forum Pro
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Posts: 19,005
Re: The Panny is not Dual IS
dezinerd wrote:
I paid a lot more for a used genuine lens a couple of years ago.
It was virtually free, together with the LVF2, when I bought GX1 in 2013.
What I like about it is its pancake compactness.
Same to me. I eyed on on its pancake design before 12-32 was available. Due to the shutter shock problem on certain bodies, and video is not my major thing, neither the power zoom, this lens has not been used a lot.
I set mine up with a stepup ring and used a rubber lens hood which kind of diminished the small size advantage.
I share an ultra thin JJC metal lens hood with 12-32...
https://www.amazon.co.uk/JJC-LH-37EPII-Panasonic-F3-5-F5-6-f3-5-5-6/dp/B00M7WRB3S
The other thing is this lens is fully compatible with the panasonic application for android. You can zoom,
It is the advantage of PZ lenses over others.
focus and set exposure. Which I found remarkable.
RE; the shutter shock thing. Panny did a firmware update to correct that.
No. So far nothing specially for the shutter shock of this lens I am afraid.
My lens had not been updated so I did that. I have never had an issue on my GX8 or GH3 with shutter shock.
E-shutter can eliminate shutter shock, with its downside (limited shutter speed to 1", no flash, rolling shutter effect etc).
Indeed, it is down to the requirement of the owner. If sort of soft feeling doesn't bother you, basically SS won't concern you at all. A lot of time if not examine an image down to the pixel level (1:1), SS could be overlooked. Since many usual factors could produce similar result: the sharpness of a sensor (e.g. has AA filter or not), the jpg engine (for SOOC jpg), the RAW converter setting, how we edited in PP, to very minor focusing issue, not shooting at sweetest spot of the lens, IQ of the lens (kit class lens), even very minor stability matter, even to the atmospheric factor etc.
To determine the existence of SS would need to compare shots from e-shutter and m-shutter. Nothing else. If there is SS it would not be eliminated on a tripod. If the shot from e-shutter is sharper than from m-shutter (all shooting conditions are the same), it should prove the existence of SS to your particular camera and lens.
The following was my home testing on G85 & 45-200 mk-I (it was another lens first found to suffer from SS in the old days):

If you look at the original @100% you should see the relatively extra sharpness of the e-shutter and EFCS shots over the m-shutter shot. Therefore despite of the new electromagnetic m-shutter on G85, trace of SS (very minor) could still be found.
Not sure how it would perform on GX8.
I agree that it was supposed to be dual IS but I am not sure how that was supposed to happen and if the lens was involved in that or just stabilized camera bodies.
Comparing between Lens OIS (currently the 14-42PZ) and DUAL IS, it could mean 0.5~1.5 stops depending on the combo.
Under my home testing:
- 14-45 f/3.5-5.6 (Lens OIS lens only) has effective stabilization of around 3.5 stops on GX85;
- 12-35 f/2.8 mk-I (DUAL IS on GX85) is around 5 stops.
Again, the effectiveness of stabilisation will also depend on the ergonomic of the combo. e.g. 12-32 on GX85 shows only 4 stops only.
I just took Panasonic for their word that it would happen. My lens is optically better than most reviews but not stellar.
Would those reviews, specially those older reviews tested on models without e-shutter, be affected by the SS? 🤔
My 12-35 sets such a high bar I did not expect it to be at that level. The full remote functionality of this lens is its hook for this user.
The white lens and shiny camera body make a traditional neck strap out of place, rhinestones or pearls would fit. High tech jewelry? Wear it with your Mr. Roark white suite.
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Albert
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