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#1
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Imagine the D600 with no mirror, no prism and an EVF
On 25/02/2013 5:35 p.m., RichA wrote:
Instead of sticking a FF sensor in a mediocre body that sheds dirt, the D600 could have been a ground-breaking. Moreso than the grossly overpriced Sony RX1. A flat format, with an included adapter to use current DSLR lenses and its own lens line in the pipeline. Better still the D800E sensor, which won't cost more to make (than the D600 sensor) in a mirrorless body where the slow burst frame rate is hardly going to be an issue, because everything else will be slow too, especially auto-focus. Yeah - they won't do it if it cannibalises D6/800 sales, which it will. Nikon also has the issue that with different flange distance, it might be a good time to revise the F-mount system, but need to do that maintaining some backward compatibility, but also with a good eye to the future. |
#2
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Imagine the D600 with no mirror, no prism and an EVF
In article , Me
wrote: Better still the D800E sensor, which won't cost more to make (than the D600 sensor) in a mirrorless body where the slow burst frame rate is hardly going to be an issue, because everything else will be slow too, especially auto-focus. Yeah - they won't do it if it cannibalises D6/800 sales, which it will. it's better if nikon cannibalizes it with another of their own cameras rather than a competitor cannibalizing it. Nikon also has the issue that with different flange distance, it might be a good time to revise the F-mount system, but need to do that maintaining some backward compatibility, but also with a good eye to the future. what are you talking about different flange distances?? all nikon slrs have the same flange distance and there's no need to change it. |
#3
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Imagine the D600 with no mirror, no prism and an EVF
On 25/02/2013 8:43 p.m., nospam wrote:
In article , Me wrote: Better still the D800E sensor, which won't cost more to make (than the D600 sensor) in a mirrorless body where the slow burst frame rate is hardly going to be an issue, because everything else will be slow too, especially auto-focus. Yeah - they won't do it if it cannibalises D6/800 sales, which it will. it's better if nikon cannibalizes it with another of their own cameras rather than a competitor cannibalizing it. I don't expect they'd hold back if Canon did this (Fx mirrorless) Nikon also has the issue that with different flange distance, it might be a good time to revise the F-mount system, but need to do that maintaining some backward compatibility, but also with a good eye to the future. what are you talking about different flange distances?? all nikon slrs have the same flange distance and there's no need to change it. Well, there's an opportunity for them with mirrorless to reduce the flange distance on the body. Of course they could just whack an F-mount on it, and you could use a standard extension tube with electronic contacts and mechanical stop-down mechanism. But there are a few good reasons why they might want to change it: F-mount is narrow - there's no room for the electronic contacts to fit beside the large rear element, hence while they make f1.2 lenses, they're manual focus with no "chip" because there's no room for the contacts. The mechanical stop-down linkage is also an issue - look at the problems with liveview implementation and changing apertures. They kind of "fixed" that with the D800/D4, but it's a complex servo stepper motor (IIRC) in the body, but this created other issues (with video IIRC?). A mirrorless will probably effectively be in "liveview" mode when you turn it on. Electronic (in lens) aperture control is a simpler, better solution these days. Nikon already implemented this is the TS-"E" (E for electronic aperture in this case) lenses because of the difficulty of a reliable functional mechanical linkage accommodating tilt and shift. Problem is that the electronic aperture won't work unless you have a recent pro-level Nikon camera. Nothing inherently wrong with F-mount for today's cameras - apart from those minor niggles, but times are changing, and as much as I believe the DSLR still has a few years left, it's going to be doomed eventually. Whatever they do, they need to be very careful. I suspect that part of their reason to hold-back on larger format mirrorless cameras will be to make sure that when they do make the move, they do it right. |
#4
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Imagine the D600 with no mirror, no prism and an EVF
On 25/02/2013 4:00 PM, Me wrote:
Nikon also has the issue that with different flange distance, it might be a good time to revise the F-mount system, but need to do that maintaining some backward compatibility, but also with a good eye to the future. The F mount all have the same flange distance. The distance to the film plane of the rear element on wide angles is limited so the mirror can move up. |
#5
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Imagine the D600 with no mirror, no prism and an EVF
In article , Me
wrote: Nikon also has the issue that with different flange distance, it might be a good time to revise the F-mount system, but need to do that maintaining some backward compatibility, but also with a good eye to the future. what are you talking about different flange distances?? all nikon slrs have the same flange distance and there's no need to change it. Well, there's an opportunity for them with mirrorless to reduce the flange distance on the body. that would likely be a new line of smaller lenses, unless the mirrorless is full frame. Of course they could just whack an F-mount on it, and you could use a standard extension tube with electronic contacts and mechanical stop-down mechanism. But there are a few good reasons why they might want to change it: F-mount is narrow - there's no room for the electronic contacts to fit beside the large rear element, hence while they make f1.2 lenses, they're manual focus with no "chip" because there's no room for the contacts. who cares. the main reason they don't is there's no demand for it. the days of needing f/1.2 lenses are long, long gone. that might have made sense when iso 400 was very grainy and anything beyond that was 'artistic' it was so bad. today with digital, iso 1600 is fantastic and iso 6400 is amazingly good. even f/2.8 lenses are not that important anymore. The mechanical stop-down linkage is also an issue - look at the problems with liveview implementation and changing apertures. They kind of "fixed" that with the D800/D4, but it's a complex servo stepper motor (IIRC) in the body, but this created other issues (with video IIRC?). A mirrorless will probably effectively be in "liveview" mode when you turn it on. Electronic (in lens) aperture control is a simpler, better solution these days. Nikon already implemented this is the TS-"E" (E for electronic aperture in this case) lenses because of the difficulty of a reliable functional mechanical linkage accommodating tilt and shift. Problem is that the electronic aperture won't work unless you have a recent pro-level Nikon camera. obviously, changes in the lenses need changes in the cameras. af-s won't work with cameras that predate it. stabilization won't work with cameras that predate that either. Nothing inherently wrong with F-mount for today's cameras - apart from those minor niggles, but times are changing, and as much as I believe the DSLR still has a few years left, it's going to be doomed eventually. Whatever they do, they need to be very careful. I suspect that part of their reason to hold-back on larger format mirrorless cameras will be to make sure that when they do make the move, they do it right. as i said they can come up with a new line of lenses and have adapters for legacy lenses. they don't have to change the f mount at all. |
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