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R10 and Full-Frame Sensor


Agent M10

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I just read over at Luminous Landscape that Sony has just come out with a 25 megapixel full frame sensor. With the introduction of Nikon's full frame and now Sony, Leica would be hardpressed to have anything less than a full-frame sensor in an R10. That's a digital camera that I'm looking forward to.

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I do not think that this sensor is for D3X.

 

1) D3X development must be at least close to finishing now and so this sensor would come too late. The sensor is for sure already fixed since long time.

 

2) And I do not think that Nikon will give up on 14bit color depth in their new high end products. That would be a major step back from D3 / D300.

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Not with a pellicle mirror ... are we looking at 60 fps live view?

 

Live view? What, like P&S's have? Again, I sincerely hope not!

 

The thought might be on a mirror which is sliver when current is passed through it, and clear when the current is switched off (or vice-versa)

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Andy,

Most new DSLRs have LiveView, including the D3 and 1dsMKIII.

Of course that is not to say that Leica will or should incorporate it into the R10.

 

A transparent mirror would be interesting, but wouldn't a piece of glass between sensor and lens be detrimental to resolution?

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Live view? What, like P&S's have? Again, I sincerely hope not!

 

The thought might be on a mirror which is sliver when current is passed through it, and clear when the current is switched off (or vice-versa)

 

Andy, Canon and Nikon tried the pellicle mirror because at its time they couldn't move the mirror fast enough to sustain the high frame rate, and the trade off was obvious.

 

Anything getting into the way of light path is not good IMO.

 

A reflective layer on the mirror could only make things worse, it's probably introducing more troubles than solving problems by turning it on and off ... what ... when I put my eye up to the viewfinder then it's on and when I press the shutter it's off?

 

I could be wrong but with this limited information at current stage I just don't get it.

 

I hate live view by the way, I would pay 1800 US dollars (on top of the full retail price) to REMOVE it if they choose to build it in the camera. :)

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And now we have worry about dust and scratches on the mirror instead of the sensor ... and it can't be too fragile.

 

On a second thought, now the mirror can effectively serve as the cover glass of the sensor and it's certainly easier to wipe the mirror than to dust off the sensor. :)

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Andy,

Most new DSLRs have LiveView, including the D3 and 1dsMKIII.

Of course that is not to say that Leica will or should incorporate it into the R10.

 

A transparent mirror would be interesting, but wouldn't a piece of glass between sensor and lens be detrimental to resolution?

 

its a fact, that new dSLRs are being criticized for not having LV, so over at dp, Askey has had to 'adjust' his position from "a solution looking for a problem" in his critique of E-330, to the issue of the yellow card for not having LV. Of course he feels safe to say that now that Canon have LV ;)

 

Some SLRs indeed have half mirrors, so that they can execute AF and metering functions, but it makes the OVF sometimes a tad dull.

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I'm finding it very useful for macro work on the Nikon D3...

 

I almost never turned on the LCD once the menu items are all set, let alone chimping with the LCD, I find the electronic rangefinder and focus confirmation on both Canon and Nikon's top dogs are so good enough and I can leave even the slightest worries far behind.

 

My worst fear is that Leica trying to add too many gimmicks which they are not best at ... while I'm asking for is a picture taking machine with the least but most useful functions and I'm not going to feel very well when paying for stuff I don't need, and will never use.

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I remember the Canon Pellix, and the problems it had were exactly as listed here--dimmer finder, less sharp images (maybe due to shutter vibration as well as the extra mirror surfaces), some tendency for the mirror to catch dust. If a fixed mirror were used today, it would also hinder sensor cleaning.

 

But according to my dictionary, 'pellicle' means 'semitransparent.' Leicaflexes from the SL have used a semi-transparent center section for the spot meter; same with the R's.

 

So:

1) Where does the rumor of a pellicle R10 come from?

2) Are you sure it means 'fixed'?

 

And:

3) I was unaware that Nikon had tried a fixed pellicle mirror. What camera was it? Any links?

 

Thanks.

 

--HC

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1) Where does the rumor of a pellicle R10 come from?

2) Are you sure it means 'fixed'?

3) I was unaware that Nikon had tried a fixed pellicle mirror. What camera was it? Any links?

 

The pellicle mirror rumor was from the same source where the M8 upgrade info came from. A stationary pellicle mirror could be useful when they planned to stuff in an oversized sensor in a relatively moderate sized body so they can avoid:

 

1) an oversized mirror hitting the butt of many (old) lenses, when being used in cropped mode;

2) the vibration from a big mirror slapping up and down;

3) difficulties in both electronics and mechanics when maintaining high fps rate;

4) blackout in a (big) viewfinder

 

plus, get:

 

1) live view

 

These are the things on top of my head now and there could be more of them.

 

Nikon tried pellicle mirror on F3H, when coupled to the MD-4H motor drive, it can do 13 fps. Canon had it on EOS RT and EOS 1N RS if I remember it correctly, the light loss is about 2/3 stops.

 

Of course, there could be some high tech gizmos available to overcome its shortcomings, I don't know.

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You wouldn't need to clean the sensor if the mirror were fixed. It would be sealed in the shutter box.

 

Andy,

 

I think these constructions have already been tried several years ago (Canon RS something) but maybe these technologies have improved over the years.

 

Having said that - I think Life View became kind of a must for today's Top DSLRs, so Leica would do good if they would not ignore this fact.

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