Re: A7R2 dual gain sensor, should I go straight from ISO 200 to 640?
hasenbein wrote:
Bob_S wrote:
For stills, yes, but with mechanical shutter only. Dual gain seems to be ISO100 & then 640.
With E shutter ISO640 isn't as clean and with less DR than any sensitivity setting below it, so of you're shooting silently use the sensitivity you need to ETTR.
With mechanical or silent shutter set zebras to 100+ and shoot 1EV over then reduce your exposure in post for cleaner shadows. I'm not sure why but there is a stop of headroom other sensors don't have.
If you're using the SR app, the headroom isn't there, use zebras to protect highlights.
In video shoot correct exposure except LOG, SLOG2 (at ISO800+) likes to be shot 1EV over and correct exposure brought back in post.
None of the above has any data to support it, but I've shot hundreds of thousands of still images and hundreds of video productions with the 7R2 and tested my advice above dozens of times.
Hope that helps. The 7R2 has still the best bang for buck sensor Sony offer, very underrated device.
I used one body until it gave up and bought a second new for peanuts because the device is so good.
Now we are in fantasy land - camera esoterics unleashed.
Of course the quality of the resulting file (in respect to DR and noise) is NOT dependent on whether one uses mechanical or electronic shutter. That's utter BS, as there is - as you rightly wrote - no data to back that claim up.
If you now feel insulted, you could send your claim to Tony Northrup. Perhaps he then does a debunking video about it 😂
Re: A7R2 dual gain sensor, should I go straight from ISO 200 to 640?
hasenbein wrote:
Bob_S wrote:
For stills, yes, but with mechanical shutter only. Dual gain seems to be ISO100 & then 640.
With E shutter ISO640 isn't as clean and with less DR than any sensitivity setting below it, so of you're shooting silently use the sensitivity you need to ETTR.
With mechanical or silent shutter set zebras to 100+ and shoot 1EV over then reduce your exposure in post for cleaner shadows. I'm not sure why but there is a stop of headroom other sensors don't have.
If you're using the SR app, the headroom isn't there, use zebras to protect highlights.
In video shoot correct exposure except LOG, SLOG2 (at ISO800+) likes to be shot 1EV over and correct exposure brought back in post.
None of the above has any data to support it, but I've shot hundreds of thousands of still images and hundreds of video productions with the 7R2 and tested my advice above dozens of times.
Hope that helps. The 7R2 has still the best bang for buck sensor Sony offer, very underrated device.
I used one body until it gave up and bought a second new for peanuts because the device is so good.
Now we are in fantasy land - camera esoterics unleashed.
Of course the quality of the resulting file (in respect to DR and noise) is NOT dependent on whether one uses mechanical or electronic shutter. That's utter BS, as there is - as you rightly wrote - no data to back that claim up.
Re: A7R2 dual gain sensor, should I go straight from ISO 200 to 640?
hasenbein wrote:
Bob_S wrote:
For stills, yes, but with mechanical shutter only. Dual gain seems to be ISO100 & then 640.
With E shutter ISO640 isn't as clean and with less DR than any sensitivity setting below it, so of you're shooting silently use the sensitivity you need to ETTR.
With mechanical or silent shutter set zebras to 100+ and shoot 1EV over then reduce your exposure in post for cleaner shadows. I'm not sure why but there is a stop of headroom other sensors don't have.
If you're using the SR app, the headroom isn't there, use zebras to protect highlights.
In video shoot correct exposure except LOG, SLOG2 (at ISO800+) likes to be shot 1EV over and correct exposure brought back in post.
None of the above has any data to support it, but I've shot hundreds of thousands of still images and hundreds of video productions with the 7R2 and tested my advice above dozens of times.
Hope that helps. The 7R2 has still the best bang for buck sensor Sony offer, very underrated device.
I used one body until it gave up and bought a second new for peanuts because the device is so good.
Now we are in fantasy land - camera esoterics unleashed.
Of course the quality of the resulting file (in respect to DR and noise) is NOT dependent on whether one uses mechanical or electronic shutter. That's utter BS, as there is - as you rightly wrote - no data to back that claim up.
Re: A7R2 dual gain sensor, should I go straight from ISO 200 to 640?
hasenbein wrote:
Bob_S wrote:
For stills, yes, but with mechanical shutter only. Dual gain seems to be ISO100 & then 640.
With E shutter ISO640 isn't as clean and with less DR than any sensitivity setting below it, so of you're shooting silently use the sensitivity you need to ETTR.
With mechanical or silent shutter set zebras to 100+ and shoot 1EV over then reduce your exposure in post for cleaner shadows. I'm not sure why but there is a stop of headroom other sensors don't have.
If you're using the SR app, the headroom isn't there, use zebras to protect highlights.
In video shoot correct exposure except LOG, SLOG2 (at ISO800+) likes to be shot 1EV over and correct exposure brought back in post.
None of the above has any data to support it, but I've shot hundreds of thousands of still images and hundreds of video productions with the 7R2 and tested my advice above dozens of times.
Hope that helps. The 7R2 has still the best bang for buck sensor Sony offer, very underrated device.
I used one body until it gave up and bought a second new for peanuts because the device is so good.
Now we are in fantasy land - camera esoterics unleashed.
Of course the quality of the resulting file (in respect to DR and noise) is NOT dependent on whether one uses mechanical or electronic shutter. That's utter BS, as there is - as you rightly wrote - no data to back that claim up.
If you now feel insulted, you could send your claim to Tony Northrup. Perhaps he then does a debunking video about it 😂
DOReview found that the A7RII dropped to 12-bit with electronic shutter and had more noise that mechanic shutter in 12-bit:
