Official: Sigma 24-105mm f/4 DG OS

[mackguyver]

Re: 82mm

True, but the point he made still stands. A typical 50-55mm f/1.4 has a 58mm filter size. 77mm is huge for a 55mm f/1.4.

It seems lots of these lenses that do better at the edges than before are having extra larger fronts (70-300L, 24-70 II, 55mm Otus, etc.).

When the Zeiss 55 was first announced, many people believed that the only way to create superior IQ from the lens was if it had a huge image circle and only used the central (best) part. I'm guessing that is a realistic possibility and might be what many of the "oversized" 77 / 82mm lenses are doing.

 

[Sporgon]

Re: 82mm

When the Zeiss 55 was first announced, many people believed that the only way to create superior IQ from the lens was if it had a huge image circle and only used the central (best) part. I'm guessing that is a realistic possibility and might be what many of the "oversized" 77 / 82mm lenses are doing.

That doesn't seem to have helped edge of frame on the Sigma 50mm 1.4 though. I believe that has a 77 front end.

 

[Rick]

Re: 82mm

The Zeiss Otus 55mm f1.4 has an 82mm filter size too.

... I believe the Otus 55/1.4 is a 77mm.

Yep:

The quote "The new 82mm front element was designed to produce sharpness across the entire frame " was copy/pasted directly form the Zeiss website, but I see in the pic the 77mm thread. Can the front element be 82mm while the thread is 77? Just curious.

 

[G650ER]

Lens isn't listed on Sigma's Global site. The links directed to it don't work, and error occurs.
Perhaps they aren't ready to release it?

 

[Jibz]

Hey,

The lens is now listed on SIGMA website, It's official : http://www.sigma-global.com/en/lenses/cas/product/art/a_24_105_4/

 

[Valvebounce]

Hi folks.
Available TBA.
Price ????

So not much change except it has reappeared on the site?

Cheers Graham.

Hey,

The lens is now listed on SIGMA website, It's official : http://www.sigma-global.com/en/lenses/cas/product/art/a_24_105_4/