Sigma 50-150 2.8 availability

Started Oct 20, 2011 | Discussions thread
phototherapy
Contributing MemberPosts: 716
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Re: Sigma 50-150 2.8 availability
In reply to lhkjacky, Oct 22, 2011

I now all about those theory's , but one can only judge when you handle such a lens, see picture, al lenses has shortcoming as will have the new version, maybe more then this one, who knows, anyway it's a great lens for indoor events.

lhkjacky wrote:

phototherapy wrote:

I have the old version, and is very very good, I don't think that the new version will be any better at all, on the contrary, to havy, no real need of in lens OS, the price is going to be the dubbel of the old version to.

The advantage of in body SSS is that all the lens, include old manual lens can be stabilized.
However, it does not perform well on tele-lens.
and it could not turn on continuously, because it will heat up the sensors.
Thus, the image at EVF or OVF are not stabilized.

Theoretically, the AF performance will be affected too.
Because the image at the AF module are not stabilized.

Just imagine, you are focusing on an steady object, but at the AF module, the image is keep on moving randomly.

You can see the comparison here.
Sony SSS VS Sigma OS:
http://www.kurtmunger.com/steady_shot_vs_sigma_osid165.html

I agree that the old Sigma 50-150 is a good lens, but it is a bit soft at 150mm.

It may good enough for A580 but for A77, I think it need a lens that can give more resolution.
Just my 2 cents.

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SONY DSLR-A350
SONY SLT-A77 + VG-C77AM
SONY DT 16-80mm F3.5-4.5 CZ
SONY DT 16-50mm F2.8 SSM
SONY 70-300mm F4.5-5.6 G SSM
Sigma 30mm F1.4 EX DC
Sigma 8-16mm F4.5-5.6 DC HSM

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