Sigma with OS for Sony/Pentax

According to this quote from a French site, Sigma's new "kit zoom alternatives" will have optical stabilisation even for Sony and Pentax:

"Par ailleurs, les 18-50 mm et 50-200 mm, destinés à concurrencer les zooms que les fabricants de reflex intègrent dans leurs kits de base, passent à la motorisation HSM et à la stabilisation OS. Y compris dans leur version Pentax ou Sony, afin d’affermir la visée, même si ces reflex comportent une unité de stabilisation au niveau du capteur".

This means that Sony owners can have a stabilised viewfinder image, but they don't say if the SSS has to be shut off, or if the OS is deactivated during exposure - or if both alternatives are available.

More at "le Monde de la Photo":
http://www.lemondedelaphoto.com/PMA-Sigma-resolument-haut-de-gamme,1969.html

information available on dpreview website for english spoken people ! lol

I saw something where Sony/Pentax users will have a 'choice', meaning that they can use one or the other,.

Some people would prefer the option to use in-lens AS as this stabilises the viewfinder but I assume that using such Sigma lenses would require the user to manually deselect the camera AS themselves ?

The idea of Sigma lenses interfering with the camera OS to switch off the in-camera AS settings would be surely not tolerated by Sony ?

Keith-C

KEITH-C said:

Some people would prefer the option to use in-lens AS as this
stabilises the viewfinder but I assume that using such Sigma lenses
would require the user to manually deselect the camera AS themselves ?

Click to expand...

I would suspect so. I can't imagine the 2 systems working in concert.

KEITH-C said:

The idea of Sigma lenses interfering with the camera OS to switch off
the in-camera AS settings would be surely not tolerated by Sony ?

Click to expand...

Does Sony have any say in the matter? From what I have read Sigma doesn't license the A-mount but instead reverse-engineers things and makes compatible lenses. Sony is not involved in the development of Sigma lenses at all (if you can believe what you read here .

KEITH-C said:

Keith-C

Click to expand...

--
Rick

I have the 18-50 2.8 and it is a great lens, but mine doesn't have OS. I do have the 18-200 OS. Both are great lenses, and Sony shooters will especially like the 18-50.
--

'A man will occasionally stumble over the truth, but most of the time he will pick himself up and continue on.'
Winston Churchill