Plena?

[MILLIREHM]

it should have be named Plenum ;-)

and unfortunately it appears not to be a DC lens - would have been nice if Nikon continued this unique tradition

https://nikonrumors.com/2023/09/25/confirmed-massive-nikon-nikkor-135mm-f-1-8-plena-lens-without-defocus-control-coming-this-week.aspx/#more-185946

[Akira]

So, it turned out to be a 135mm f1.8.    Non-DC, but with almost the perfectly round bokeh.

https://www.nikon.com/company/news/2023/0927_lens_01.html

Some sample images from the Japanese official website:

https://www.nikon-image.com/products/nikkor/zmount/nikkor_z_135mm_f18_s_plena/sample.html

[Akira]

Here's the optical design.  The still-mysterious SR element is on the forefront.

[Bern]

The MTF chart...what do you think?

[MEPER]

It is a nice DX-lens 

[Erik Lund]

11 aperture blades - Round out of focus Bokeh gives a very calm image and no vignetting, interesting features!
Utilizing the Z mount to next level - Plena S lenses, will there be an 105mm?

[Birna Rørslett]

Obviously a well-thought out optical design.  Not restricted to DX, by the way. The principle of design might mimic the latest 58/1.4 F ('Neo-Noct') to perform visually much more satisfying than what the clinical MTF graph might indicate.

It's heavy and likely expensive. Oh well.

[Roland Vink]

MTF is outstanding to 15mm (DX image circle). Still excellent beyond that considering it is at f/1.8.

Close focus is 0.82m, which is relatively close for a 135mm, even slightly closer than the 85/1.2 gets. Max magnification is 0.2x (1:5), so will be good for closeups.

No LCD showing the focus distance or DoF scale. It seems Nikon has abandoned this feature, maybe most photographers don't find it to be useful.

[Eddie Draaisma]

Weight 995g and it will cost 2999 Euro over here in NL

[bressong]

personally, I don;t see the value of 2500USD
my copy is 1000USD, 1/3 of Plena and 250g heavier.

is anybody really care about how round the flare light spot is in background corner?

[bressong]

it is also sharp  and high resolution wide open,  focus fast

[bressong]

there is no onion circle as plena

[bressong]

different focus distance

[bressong]

nothing can complain on sigma 135/1.8 art optical performance except the weight.  8)Dam maybe it's my problem

[Erik Lund]

Plena utilizes round Bokeh balls combined with a large image circle ie. minimize Cat's eyes from out of focus highlights,,,
Onion rings? I have not seen that in the high end of the Nikon Z S-line of lenses