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Nikon FF Mirrorless


Aussie Ash
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1 hour ago, kye said:

If anyone is comparing lenses, be aware that one of the advantages of having a fast lens is that you can stop down and get less distortion.  For example, if you get a 50mm F1.4 and use it at 1.8 then it is likely to be optically superior to the 50mm 1.8 at 1.8.

This is why people would buy a 1.2 lens in comparison to an 1.4 lens - it's not because they want to shoot a lot at 1.2, it's the performance at 1.4 or 1.8.

And generally less vignetting and better edge resolution than the F1.8. lens.

 

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On 8/28/2018 at 9:51 AM, Django said:

50mm F1.2L & 85mm F1.2L are hallmarks of Canon's lens line-up, especially pro portrait photography.

Also let's not forget that on a Super35/APS-C crop sensor/mode F0.95 becomes F1.4 & F1.2 becomes an F1.8 in DoF.

They are pretty versatile & unique lenses imo.

MFT, CA & breathing are pretty poor though (especially on the 50mm L) and this is where i'd expect Nikon's Z primes to take the lead.

Why oh why did Canon announce the 85mm f1.4? Because that is fast enough. Just make it usable (or excellent even) wide open. I had their 50mm f1.4 and it was not stellar at all, so IMO f1.2 was the only real choice for PROs. I would bet that Canon will replace the current 50mm f1.2 with a f1.4 excellent wide-open.

Judging by the forums, videographers and astrography are two of the most common use-cases for most DSLR, which is ridicules of course (they are loud, though). Astro can be done with super fast manual exotic primes from less known manufacturers and it would be stupid for Canon to cater to these niche needs (make lenses needlessly huge and expensive). Same could be said for pre-DPAF videography, when manual focus was king. If you need no focus breathing, parfocal lenses, you will not haul these huge, expensive lenses around, when using your gear causally and Canon will gladly sell you some photo lenses as well.

This super fast primes is just a nice buzzword for headlines at launch. They will be negligible once the new mount lens line-up matures.

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Go to DXOMark website and look at T stop ratings for f1.2 and f1.4 lenses and be amazed at the marketing mumbo jumbo. Also, what good is light if it is almost completely OOF? Lens designs have matured to the point that most high end primes are excellent wide open. No more stopping down that f1.2 lens to get decent sharpness etc.

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7 hours ago, kye said:

If anyone is comparing lenses, be aware that one of the advantages of having a fast lens is that you can stop down and get less distortion.  For example, if you get a 50mm F1.4 and use it at 1.8 then it is likely to be optically superior to the 50mm 1.8 at 1.8.

This is why people would buy a 1.2 lens in comparison to an 1.4 lens - it's not because they want to shoot a lot at 1.2, it's the performance at 1.4 or 1.8.

That's actually not true, maybe it is sometimes, but is it mainly dependent on the optical design itself. Oh, and the glass looks a bit fancier both on the specs sheet and in real life... I am sure Sigma could make even better f/2 ART prime lenses for instance, but people would just say 'meh, too expensive but not faster'.

Generally speaking, you can design a much higher resolving lens (especially in the corners) with lower geometric distortion and far less aberrations by opting to use a slower aperture (the increase going into extreme F-stops is actually monumental). The vignetting might be more significant, but that can be corrected. This is exactly why they went with f/1.8 Z primes instead of faster. Other casing point is the Leica 50/2 APO, which still sets the benchmark (although all the rest they made is not far off in absolute terms).

It will be interesting to see what the 58mm f0.95 can do.

I have to say, while the 35mm f/1.8 looks very sharp, I don't find the rendering anything special in these early samples. Only seen thumbnails from the 50mm f/1.8 so far.

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41 minutes ago, padam said:

This is exactly why they went with f/1.8 Z primes instead of faster. Other casing point is the Leica 50/2 APO, which still sets the benchmark (although all the rest they made is not far off in absolute terms).

 

Their new 50mm F1.8 Z is far from being a simple design,even compared to the 2011 release G which

was a significant step forward from the old film era AFD lens.

 

 

Nikon 50mm f1.8 Z.jpg

Nikon 50mm f1.8 G 2011.jpg

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2 hours ago, Mattias Burling said:

Super fast primes lets in more light. And light is definitely not a buzzword. Quite the opposite, the only word that really matters :)

Yeah, but with the low light sensibility of the last batch of FF cameras, it is somewhat less relevant than before, no? 

Of course that is better to use the lowest ISO possible, but we have more clean ISO range now than before.

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Interview with the Z engineers: IR Interview: A deeper dive with the Nikon Z7 engineers

F/0.95 is just the beginning? Now this was interesting: The amazing f/0.95 aperture of the coming 58mm lens is the starting point for super-aperture lenses, versus an end point! When I mentioned the f/0.95 aperture as a goal for the new mount, Mouri-san said that their goal was actually more ambitious than that, and that the 58/0.95 lens was just a "current point".

Also cheaper non-S line lenses will come out..

1 hour ago, padam said:

I have to say, while the 35mm f/1.8 looks very sharp, I don't find the rendering anything special in these early samples. Only seen thumbnails from the 50mm f/1.8 so far.

 

Current trend of high group/elements lens design is good for charts/performance but often means micro-contrast & 3D pop take a hit which is where lens mojo is imo.

Some new Z7 samples from Japan up on dpreview, these 2 high ISO shots were fairly impressive imo for SOOC jpgs:

Nikon Nikkor Z 35mm F1.8 S 35 mm, 1/80 sec, f/3.2, ISO 25600

Nikon Nikkor Z 35mm F1.8 S 35 mm, 1/80 sec, f/1.8, ISO 8000

 

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30 minutes ago, Aussie Ash said:

Their new 50mm F1.8 Z is far from being a simple design,even compared to the 2011 release G which

was a significant step forward from the old film era AFD lens.

Thom Hogan said that their Nikon sources said that because of the bigger mount, the new 35mm and 50mm Z lenses have much better optical capabilities than predecessor lenses - in fact, claiming exceptional corner performance. Let's see.

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