D600 RAW is not much better than A900

Started Sep 27, 2012 | Discussions thread
Allan Olesen Veteran Member • Posts: 3,391
Re: D600 RAW is not much better than A900

Michel J wrote:

No, I don't asking for a non-linear A/D-conversion.

Yes, you do. You may not realize it, but that is the logical consequence of what you are asking for.

But if that can help to achieve better lowlights, why not. The actual design is not conducive for lowlights. Period. As a reprographer, I saw many time the lack of details in lowlights area (from DSLR), comparing to a Dainippon scan of MF slides (or very best 35mm). What tell to me we have a loss of some details here, maybe from this bits count, the linear A/D-conversion or watever: but we can expect more from a camera dedicated to lowlights imho, if so....

If we are talking real low light photography (ISOs in the thousands), the problem is not a lack of digital resolution in the raw file format. As I wrote earlier, when you have digital resolution enough to count fractions of photons, you already have more than you need.

Why can't we change of paradigm here? The EVF embedded in the DSLR design tell to us that current design would be change to get better optimisation

Moreover, since we know that the EVF can show things indistinguishable in OVF (in lowlights) there will be more demand to justify R&D innovations in this direction..

Sorry, but I don't understand what you mean. We can only feed the EVF with a signal which is in accordance with the laws of physics.

Here, the sensor don't percieve colours (of course) but frequencies, and they can sort too according to the penetration in the substrate what balancing well the colours according to the size of sensors area dedicated to. A very clever design:

Gain expected: about a half stop and more(?)

Yes, if this design can sort and catch all photons instead of rejecting photons with the wrong wavelength, I agree that the possible improvement would be in that ball park.

I don't know enough about the Foveon sensor. I assume that it also has the same disadvantage of having to throw photons away to discern between colors, or some other similar disadvantage. Otherwise I would have expected it to prove better than a normal sensor with Bayer filter years ago.

Are you pessimist? I notice that you don't react about the idea of Iliah Borg?

All pessimists say that they are realists. Do you want me to say that too?

The reason I didn't comment on the Iliah Borg part was that I couldnt figure out what you were trying to say.

Post (hide subjects) Posted by
Keyboard shortcuts:
FForum PPrevious NNext WNext unread UUpvote SSubscribe RReply QQuote BBookmark MMy threads
Color scheme? Blue / Yellow