Right, I can't see how in lens image stabilisation could work for a rotation
about the optical axis.
...Wayne
-----Original Message-----
From: olympus
[mailto:olympus-bounces+wayne.harridge=structuregraphs.com@xxxxxxxxxxxxxxxxx
] On Behalf Of Mike Gordon via olympus
Sent: Thursday, 27 November 2014 4:16 PM
To: olympus@xxxxxxxxxxxxxxxxx
Subject: Re: [OM] IBIS on the A7II and ? OMA9--works with OS in the lens
too--implications for OMZ lenses
I perhaps should have qualified the IBIS blanket statement a bit. The
latest incarnation of the Oly IBIS seemed to be king of the hill at least
under many circumstances especially very slow shutter speeds.
It is difficult to find carefully conducted comparisons with the latest
Panny in lens OIS.
Things do change rapidly though as it is clear form precious link I listed
that the GX-7 IS can out perform the OM- D version under many circumstances.
The major point was though that Sony seems to have found a way to leverage
the best of in lens IS and IBIS. I have read that in lens systems might
have trouble with "roll" compensation but have not seen an explanation or
confirmation. I did not think that the new A9 had much chance of having
IBIS given all the effort put into the in lens OIS but this new information
and the appearance of the hybrid IS in the A711 has changed all that.
Mike
On 11/25/2014 4:37 PM, Mike Gordon via olympus wrote:
> This is a first as far as I can tell. If the lens has IS it will
take care of
the pitch aand yaw while the body will
> stabilize the roll/x/y
> displacment. With Oly in MFT one can use the lens OSS or the IBIS
but not
both effectively--IBIS is better than
> almost every lens IS except in a very few exceptions.
Source? Panny has been consistent in saying that their latest lens IS is at
least slightly superior to IBIS. How would one even know if one or the other
is generically better, as there are not only various manufacturers, but
various ages of design.
>
http://www.sonyalpharumors.com/wp-content/uploads/2014/11/sonyfeatures.png
>
>
http://a.disquscdn.com/uploads/mediaembed/images/1466/1462/original.jpg
>
> Ah hah--just as on Oly MFT, no? This is great for alts as can dial
in the
proper FL. Perhaps one may have to lie to
> it on the FL if higher mag macro?
Funny story. at least I'm laughing at myself now, after quickly switching to
the
GX7 for the shot and getting it. I
tossed the Oly 9/8.0 lens cap fisheye on the E-M5 to take a shot at the top
of the rainforest globe at the Calif.
Academy of Science - and the LCD images started jumping all over the place.
Thought it through later, checked, and the IS MF FL setting* was for 600 mm!
> Also have read that the IBIS may NOT be Oly clone but a home brewed
version.
Could be Oly license, but Sony made. The Oly system couldn't be just
attached to
a much larger sensor. It would have to
be remade, scaled up. I can't see much point in reinventing something
demonstrated to work.
> This new type of hybrid stablization using both suggests (to me at
aleast) the
A9 will have it and could be
> the cat's meow for OMZ lenses and other alts. I have no doubt the
A7II will
have the same sensor flare
> as the A7.
:-) /:-( Like the smile and frown of comedy and tragedy?
> If they fix some of the ergonomic issue on the OM A9 may need to
have a mop
ready for AG drool.
> (as well as mine). It could essentially be the FF digital OM with
IBIS with
a great EVF Oly should/could have made.
Good luck!
Partially Framed Moose
How often do I get to use a trio of acronyms in a row?
--
What if the Hokey Pokey *IS* what it's all about?
--
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