p.3 #3 · Zeiss Distagon 2.8/15 ZE official, release in May 2012
Rodluvan wrote:
Where does it say its 15mm?
All signs point to it being a 15mm lens (rumors stating this focal length and Zeiss calling it a super-wide at this point). Zeiss hasn't officially announced the lens yet though.
p.3 #4 · Zeiss Distagon 2.8/15 ZE official, release in May 2012
The Facebook photo of the rear element, when clicked upon, says: "Explore new perspectives in your pictures with a super-wide, 110° angle of view". A 110-degree angle of view requires a 15 mm focal length for a rectilinear lens on the 24×36 mm format.
It's starting to look interesting, albeit unaffordable (for me). Not a particularly bulbous front element, it seems. But with a 95 mm filter thread, and a fixed shade beyond that, it's going to be truly enormous.
p.3 #7 · Zeiss Distagon 2.8/15 ZE official, release in May 2012
I wonder about the deep recessed back lens. Pretty good for compatiblity for different cameras, but harder to design. OK, with the bigger back lens diameter this could be equalized.
Or is this image at minimum object distance, and this is very close to to the camera?
p.3 #8 · Zeiss Distagon 2.8/15 ZE official, release in May 2012
In the picture it looks to be recessed at least 5 mm. Even if this is a EF mount, an F or M42 mount there would still be 3.5+ mm recess. That's quite a lot. Considering it's a retrofocus design, it also wouldn't give any significant advantage in corner performance on short flange distance mirror less systems.
I would go along with your suggestion that the picture shows the lens at close focus.
Then this would imply that it's not a floating element design (unless the rear element is floating, though I don't know of any such design).
p.3 #10 · Zeiss Distagon 2.8/15 ZE official, release in May 2012
I agree it looks quite recessed for an EF-mount version, and therefore the lens is likely to be shown at close focus.
However, the recessed rear element wouldn't preclude a floating-element design. I'm sure it will have floating elements! Otherwise the performance would be terrible at close range.
The 21 mm Distagon, for example, has a floating-element design. But its rear element is similarly recessed at minimum focus distance (extrapolating from my ZF version). Maybe I didn't exactly understand your comment, jotdeh?
Smridevan wrote:
This lens would be pretty sweet on a NEX or any crop-sensor cameras if it's not too heavy or big. I would not buy it if it's more than $2000.
I'm almost certain it will cost more than $2000, and it will also be big and heavy compared to anything except, possibly, an elephant!
p.3 #11 · Zeiss Distagon 2.8/15 ZE official, release in May 2012
You understood my comment just fine Just to clarify though, my line of thought is this:
1) Retrofocus design is more complicated.
2) Hence there wouldn't be *more* retrofocus than necessary.
3) Here it looks like there is either
a) excessive retrofocus design (so the picture may show the lens at close or infinty focus, and nothing can be concluded about the presence of a floating element), or
b) the lens is at close focus (so the rear element is recessed more, if it's not a classical floating element design)
By 2) I favour 3b).
But all that may be moot if as you say the 21 also has excessive retrofocus.
And I agree, I would expect a floating element in a high end lens like we expect this one to be.
Mar 12, 2012 at 11:03 AM
Lars Johnsson Offline • • • • • • • Upload & Sell: Off
p.3 #12 · Zeiss Distagon 2.8/15 ZE official, release in May 2012
Smridevan wrote:
This lens would be pretty sweet on a NEX or any crop-sensor cameras if it's not too heavy or big. I would not buy it if it's more than $2000.
From the small pics on the Zeiss website and the 95mm filter thread, I don't think you can expect a small lens
p.3 #13 · Zeiss Distagon 2.8/15 ZE official, release in May 2012
Okay, thanks jotdeh.
Lars Johnsson wrote:
From the small pics on the Zeiss website and the 95mm filter thread, I don't think you can expect a small lens
Agreed. The Nikkor 14-24 mm f/2.8 has a maximum diameter of 98 mm. The forthcoming Zeiss has a 95 mm filter thread, so it must be at least as fat as the Nikkor: probably around 100 mm wide at the front. It's probably in the "kilo class", too.
p.3 #15 · Zeiss Distagon 2.8/15 ZE official, release in May 2012
j.liam wrote:
€2000 a kilo. Like truffles.
If you drop the truffles you can pick them up and wash them, and they are "like new". Not so the Zeiss, I don't think
p.3 #16 · Zeiss Distagon 2.8/15 ZE official, release in May 2012
Smridevan wrote:
This lens would be pretty sweet on a NEX or any crop-sensor cameras if it's not too heavy or big. I would not buy it if it's more than $2000.
i think $2000 is the minimum expected price. also, with a 95mm filter thread you'll probably be able to fit at least 3 NEXs inside the lens.
p.3 #17 · Zeiss Distagon 2.8/15 ZE official, release in May 2012
Guys, the 21 f:2.8 lists for $1843 on the Amazon price list. By all accounts, a 15mm lens of equal speed must be quite a bit larger, as evidenced by the 95mm filter. And the 15mm focal length also gives this lens less wide an appeal than its less wide sibling, meaning it will be produced in lesser numbers. Larger, and produced in lesser numbers, and you would that it cost only 5% more? I don't think so.
p.3 #18 · Zeiss Distagon 2.8/15 ZE official, release in May 2012
philber wrote:
Guys, the 21 f:2.8 lists for $1843 on the Amazon price list. By all accounts, a 15mm lens of equal speed must be quite a bit larger, as evidenced by the 95mm filter. And the 15mm focal length also gives this lens less wide an appeal than its less wide sibling, meaning it will be produced in lesser numbers. Larger, and produced in lesser numbers, and you would that it cost only 5% more? I don't think so.
Exactly. However, considering that this lens is likely to be The extreme wide of the ZE/F lens series, they might sell it with less margin just to stay within the almost affordable envelope.
Before we know the price, my main "problem" is the same as sebboh´s, 21mm is almost too wide for me. If I ever and extremely rarely need anything wider my 15 and 8mm fisheyes can manage those situations, though I know I will be extremely tempted when you guys are showing off you new large and heavy jewel of a lens. Hoping for 3500 of moneto-egoistic reasons...
p.3 #19 · Zeiss Distagon 2.8/15 ZE official, release in May 2012
I dunno. If the "world-class" 14-24 Nikkor zoom can be profitably manufactured and sold at right around $2k, I don't think it's unreasonable to assume that an equally "world-class" single FL 15mm prime couldn't come in at around that price too.
p.3 #20 · Zeiss Distagon 2.8/15 ZE official, release in May 2012
The Nikkor zoom is impressive, but since it's a cornerstone of Nikon's professional lens lineup, it's produced in greater numbers (about 150,000 in five years) than could be expected for an exotic, all-metal, manual-focus prime.
And we don't truly know how profitable it is for Nikon. Japanese companies are sometimes funny like that.
I also expect the new Distagon to be better than the Nikkor in some ways, e.g. lateral chromatic aberration. On the other hand, I don't know if Zeiss or Cosina can produce or source large-diameter aspherical elements, as used in the Nikkor. So the comparison might prove interesting!
for 3000 Euro...
Just to clarify though, my line of thought is this: