Pretty sure it's just been two people arguing about pointless crap that means nothing to 99% of photographers.
There is no reciprocity in digital
You're welcome to leave the thread at any time you choose
There's no reciprocity? Of course there is. We're talking of reciprocity... you#'re referring to reciprocity FAILURE... the law of reciprocity is just the reciprocal relationship between shutter/aperture/ISO. Last time I checked, digital cameras still have apertures and shutter speeds, and one still effects the other... there's still a reciprocal relationship between them.
and as for the rest I think you are in the land of Star Trek

How else are you going to control the amount of light hitting the sensor without a shutter and an iris.
We're discussing a sensor so wide in dynamic range and bit depth, that exposure becomes irrelevant at time of capture, because it's simply wide, and deep enough to capture everything in on go, and exposure is selected post shoot.
This is NOT Start Trek.. it is the future, and it will happen sooner than you think. I bet you were one of those people who scoffed when people suggested you'd have a small device in your pocket that can make phone calls and access computer the world over, record images and video, and sound, navigate for you, be a personal computer, and all small enough to fit in your pocket

20 years ago THAT was Stark Trek!
The sensors we're discussing are being developed experimentally now... they just need extremely pure substrates, and near absolute zero temperatures to work. We'll crack it, and when we do, we'll need a whole new paradigm in their use.
When and if this day comes all we will do is adapt to using the new hardware. What that has do to with you and woody arguing over bit depths is beyond me.
Maybe we're enjoying a debate? Has THAT ever occurred to you?
P.S I was replying to one post which was not the OP's original. Not surprising you jump down my throat over and talk about something nothing to do with my reply.
Can we only reply to comments addressed directly to ourselves? Sorry.. I must have missed a meeting somewhere
Can we just 'cut to the chase'
We all know film and digital are different.
I don't need to know the science behind the differences. Maybe I should be interested, but I'm not.
I just need to know the practical implications of those differences.
Is there anything new here specifically relating to limitations/advantages of digital v film?
Not really... because we're discussing the limitations on potential digital imaging in the future if we carry on using the current paradigm of Shutter/Aperture/ISO, which is a legacy of film. There's nothing here really to affect the current use of digital... yet.. but it's a discussion on the internet... so who knows where it will go
That would mean a complete capture of the entire tonal image range as the ultimate goal.
Yep. I'm quite excited about that possibility. I'll miss the passing of the current way of doing things, but I see the potential of such a system. It would be amazing!
I suspect we will just have a seriously enlarged capture well before that.
I can't see it being implemented on even high end professional gear until storage is cheaper and faster... which again, is coming. Look how we've advanced in jjst 10 years. 10 years ago, even a fast 10K rpm SCSI drive could only manage what 5.4K rpm "green" storage drives can achieve now. The SSDs in my current machine can read/write large contiguous files at over 1GB/sec.
It will not be so much exposure selection as dynamic range selection to suit visual and out put devices.
That's what I was suggesting it would be: A selectable "range" wuold all that would be needed.
I am not sure where I read it, But it seems noise is being Filtered at an very Early stage on the sensor itself before the signal is otherwise processed... this means that the noise is not amplified with the rest of the signal. I have probably got that slightly wrong as it was going over my head.
No, you're right so far as I'm aware. It operates.. and this is a very basic analogy, like Dolby NR used to work on analogue recording. The noise floor was artificially lowered first, and the signal filtered accordingly. I know it's a poor analogy as digital image NR is not an analogue filter, but the workflow is similar... if that makes sense.
But it would account for the step change in the reduced noise in the more recent cameras.
It's just a general improvement in processing, power efficiency (remember heat plays a large role in noise generation in sensors.. which is why astrophotography cameras are cooled), lower voltages, and smaller silicon fabrication processes... much like improvements in CPUs.
and that is different to how we shoot digitally now?
Very much so, yes.
Because at the moment we are sometimes limited by the dynamic range of the sensor and finding ways to work around it
In the future we won't be
Exactly.