You seem to be reading something into this that I can't see. The item has to do with image recording options, not single/continuous release.
Undoubtedly true, but you have to see if going from 14 to 12 bit is noticeable regarding the quality of your workflow/final work; basically you're reducing tonality/shades from 16384 to 4096 steps for each R,G,B, i.e, from 16384x16384x16384 to 4096x4096x4096 available "colours"...
I generally avoid 12-bit modes, but I'll admit to being less-than-informed about how much difference it really makes.Undoubtedly true, but you have to see if going from 14 to 12 bit is noticeable regarding the quality of your workflow/final work; basically you're reducing tonality/shades from 16384 to 4096 steps for each R,G,B, i.e, from 16384x16384x16384 to 4096x4096x4096 available "colours"...
Most time we will loose more colorinformation with not-ETTR, than with any of these modes. But if you shoot a landscape at base ISO and do ETTR, it may be good to avoid those modes. But with a spontanous family shot at ISO1600, you will never notice any difference.I generally avoid 12-bit modes, but I'll admit to being less-than-informed about how much difference it really makes.Undoubtedly true, but you have to see if going from 14 to 12 bit is noticeable regarding the quality of your workflow/final work; basically you're reducing tonality/shades from 16384 to 4096 steps for each R,G,B, i.e, from 16384x16384x16384 to 4096x4096x4096 available "colours"...
My speculation is that the roughly 15% reduction in going from 14-bit to 12-bit works out to a non-proportional loss of real-world IQ ... perhaps on the order of 5% or even less.
However, the explanations I've seen have tended to be "over my head".
Also, am I the only hobby'ist who wants to get every iota of IQ that the budget-busting a7Rii is capable of?
But .. am I "majoring in minor"? There are times when "Fast Continuous" or "Slow Continuous" would be very useful to capture a fleeting moment, for example.
I believe the important thing is to be aware of it - Using it or not depends, IMO, greatly on the final work pretended (or needed) IQ; for display/see on a monitor, even within today's state-of-the-art availability, there's no visible difference...I generally avoid 12-bit modes, but I'll admit to being less-than-informed about how much difference it really makes.Undoubtedly true, but you have to see if going from 14 to 12 bit is noticeable regarding the quality of your workflow/final work; basically you're reducing tonality/shades from 16384 to 4096 steps for each R,G,B, i.e, from 16384x16384x16384 to 4096x4096x4096 available "colours"...
My speculation is that the roughly 15% reduction in going from 14-bit to 12-bit works out to a non-proportional loss of real-world IQ ... perhaps on the order of 5% or even less.
However, the explanations I've seen have tended to be "over my head".
Also, am I the only hobby'ist who wants to get every iota of IQ that the budget-busting a7Rii is capable of?
But .. am I "majoring in minor"? There are times when "Fast Continuous" or "Slow Continuous" would be very useful to capture a fleeting moment, for example.
Most time we will loose more colorinformation with not-ETTR, than with any of these modes. But if you shoot a landscape at base ISO and do ETTR, it may be good to avoid those modes. But with a spontanous family shot at ISO1600, you will never notice any difference.I generally avoid 12-bit modes, but I'll admit to being less-than-informed about how much difference it really makes.Undoubtedly true, but you have to see if going from 14 to 12 bit is noticeable regarding the quality of your workflow/final work; basically you're reducing tonality/shades from 16384 to 4096 steps for each R,G,B, i.e, from 16384x16384x16384 to 4096x4096x4096 available "colours"...
My speculation is that the roughly 15% reduction in going from 14-bit to 12-bit works out to a non-proportional loss of real-world IQ ... perhaps on the order of 5% or even less.
However, the explanations I've seen have tended to be "over my head".
Also, am I the only hobby'ist who wants to get every iota of IQ that the budget-busting a7Rii is capable of?
But .. am I "majoring in minor"? There are times when "Fast Continuous" or "Slow Continuous" would be very useful to capture a fleeting moment, for example.
Here's a link to both graphs and pictures that show how the change in precision and increase in read noise affects photography:
blog.kasson.com
If you use compressed mode, the reduction in precision is from 13 to 12 bits, not 14 to 12 bits. However, there is also an increase in read noise.Undoubtedly true, but you have to see if going from 14 to 12 bit is noticeable regarding the quality of your workflow/final work; basically you're reducing tonality/shades from 16384 to 4096 steps for each R,G,B, i.e, from 16384x16384x16384 to 4096x4096x4096 available "colours"...
Lotta options there. You've got an a7x camera, why not produce exactly what you think is dispositive and post it here? I'm sure we'd all love to see it.
I wish I thought of it earlier, I just did some Milky Way shooting this weekend and kept LENR on.
If you use compressed mode, the reduction in precision is from 13 to 12 bits, not 14 to 12 bits. However, there is also an increase in read noise.Undoubtedly true, but you have to see if going from 14 to 12 bit is noticeable regarding the quality of your workflow/final work; basically you're reducing tonality/shades from 16384 to 4096 steps for each R,G,B, i.e, from 16384x16384x16384 to 4096x4096x4096 available "colours"...
Jim
Thanks for the follow-up, but I do have several questions after re-reading the blog article (some of which was over my head):
I have seen no difference in read noise measurements between compressed and uncompressed images.
blog.kasson.com
Probably not. I don't use continuous mode at ISO 100 myself.
It does apply, modulo gratuitous spatial filtering in bulb mode.
OK ... done. No reason not to dig deeper on this 12-bit vs 14-bit issue, at least regarding PDR.
You're thinking of EDR. The main factors influencing PDR are FWC, QE, and read noise.
