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Sigma 70mm f/2.8 DG Macro Art Lens for Sony E

 
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Saul



Joined: 31 Jan 2011
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Location: Naperville, IL USA

PostPosted: Fri May 11, 2018 11:54 am    Post subject: Sigma 70mm f/2.8 DG Macro Art Lens for Sony E Reply with quote

Very pleased seeing the price, waiting for the Nikon version ...

https://www.bhphotovideo.com/c/product/1393483-REG/sigma_70mm_f_2_8_dg_macro.html
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Lou Jost



Joined: 04 Sep 2015
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Location: Ecuador

PostPosted: Fri May 11, 2018 1:16 pm    Post subject: Reply with quote

This is exciting! I'm eager for Robert O'Toole's report once he gets this.

One bad thing about the recent Sigma Art lenses for Nikon mount is their fully electronic apertures; they don't even have a stop-down lever inside the mount. They can't be stopped down at all when used in reverse, or when used on MFT bodies.

Edited to add: Darn, they've gone to Focus-by-wire, which makes it impossible to use the correct focus setting when used in reverse.

Edited again to add from Sigma literature "Photography enthusiasts will recall a certain legendary, razor-sharp macro lens -- the SIGMA MACRO 70mm F2.8 EX DG -- and be glad to learn it is available in a new form, updated with outstanding Art line quality."

They say it extends when focused, just like the old 70mm. Maybe it is not too different from that excellent lens. If so, for many of us, the all-manual old version might be better. Or the 65mm all-manual Cosina.
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Macro_Cosmos



Joined: 15 Jan 2018
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Location: Sydney

PostPosted: Tue May 15, 2018 8:08 am    Post subject: Reply with quote

There will be no Nikon version, that thing uses a stepper motor, focus by wire (AF-P). Sigma hasn't cracked the nikon codes yet.
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Lou Jost



Joined: 04 Sep 2015
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PostPosted: Tue May 15, 2018 8:24 am    Post subject: Reply with quote

Ah, of course that also means it can't be used on MFT cameras.
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RobertOToole



Joined: 17 Jan 2013
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PostPosted: Wed May 23, 2018 1:57 pm    Post subject: Reply with quote

Lou Jost wrote:
This is exciting! I'm eager for Robert O'Toole's report once he gets this.


One bad thing about the recent Sigma Art lenses for Nikon mount is their fully electronic apertures; they don't even have a stop-down lever inside the mount. They can't be stopped down at all when used in reverse, or when used on MFT bodies.

There is one around this

Edited to add: Darn, they've gone to Focus-by-wire, which makes it impossible to use the correct focus setting when used in reverse.

Edited again to add from Sigma literature "Photography enthusiasts will recall a certain legendary, razor-sharp macro lens -- the SIGMA MACRO 70mm F2.8 EX DG -- and be glad to learn it is available in a new form, updated with outstanding Art line quality."

They say it extends when focused, just like the old 70mm. Maybe it is not too different from that excellent lens. If so, for many of us, the all-manual old version might be better. Or the 65mm all-manual Cosina.


Hi Lou,

I do plan to get one and I will create a thread once I get it. I have the old Sigma 70 and the Voigtländer 65 standing by to shoot with it.

The old Sigma 70 was discontinued due the glass going out of production. The new green glass types are a lot more limiting for designers due to the severely limited types now available compared to the old lead glass but thankfully newer CNC technology and faster computers does make it possible to exceed the old designs even though the new glass is not as good generally speaking. The problem is that the available glass types are limited because, I was told, that there are only 3 main glass suppliers in the world now that all the manufacturers use.

Also don't forget there is no stabilization in the new Sigma 70 lens, which I think is great ( less complex and a better value without OS).

Robert
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Lou Jost



Joined: 04 Sep 2015
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Location: Ecuador

PostPosted: Wed May 23, 2018 2:17 pm    Post subject: Reply with quote

I thought you might. For me the focus-by-wire and aperture-by-wire are deal killers though. My cameras can't do that.
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