I googled Sensor Scan Time for the Nikon D70 and it was Global.

[monte12345]

The D70 featured a CCD sensor instead of CMOS and per Google CCD sensors have Global Readout. In addition by nature of the design CCD sensors are much more sensitive to Infrared light that CMOS. Something that made it nearly unusable for Wedding pics of a Blushing Bride and Groom. That blush could make them look Truly Beet Red under available light.

Something else of note is that the D70 could sync with electronic flash at up to 1/8000 second due to the Global shutter. If used with a Nikon TTL flash the sync was limited to just 1/500 second due the capability of the TTL system.

The key factor for the reason why CCD went out of use are A) the cost more to make, and B) they had a higher rate of noise increase with higher ISO settings. The D70 was limited to just ISO 1600 and that was due to excessive noise.

Still there are times when what was once considered Obsolete suddenly becomes very useful. So who knows, it might be the Z9IV may feature a CCD image sensor.

 

[starbase218]

The D70 featured a CCD sensor instead of CMOS and per Google CCD sensors have Global Readout. In addition by nature of the design CCD sensors are much more sensitive to Infrared light that CMOS. Something that made it nearly unusable for Wedding pics of a Blushing Bride and Groom. That blush could make them look Truly Beet Red under available light.

Err, isn’t that taken care of with an IR filter in the sensor stack?

Something else of note is that the D70 could sync with electronic flash at up to 1/8000 second due to the Global shutter. If used with a Nikon TTL flash the sync was limited to just 1/500 second due the capability of the TTL system.

The key factor for the reason why CCD went out of use are A) the cost more to make, and B) they had a higher rate of noise increase with higher ISO settings. The D70 was limited to just ISO 1600 and that was due to excessive noise.

I thought it also had something to do with the need for video and live view capabilities? Not sure though.

Still there are times when what was once considered Obsolete suddenly becomes very useful. So who knows, it might be the Z9IV may feature a CCD image sensor.

Z9IV? I expect nothing less than an FTL (faster-than-light) sensor and a flux capacitor.

But in any case, the Sony A9 III already has a global shutter with CMOS tech. So… I don’t know. It seems a bit far-fetched to think of CCD tech imho.

 

[Robert Salton]

In addition by nature of the design CCD sensors are much more sensitive to Infrared light that CMOS.

Not inherently AFAIK, but CCD are much easier to design for better NIR QE.

Something that made it nearly unusable for Wedding pics of a Blushing Bride and Groom.

That was mostly due to a reather weak hot mirror infront of the sensor.

So who knows, it might be the Z9IV may feature a CCD image sensor.

CCDs, especially interline ones, are dead and gone for consumer cameras.

For something as far off in the future as a Z9IV, we'd rather get photon counting sensors than some kind of CCD variant.

 

[Rene Gr]

The D70 featured a CCD sensor instead of CMOS and per Google CCD sensors have Global Readout.

Where did you find that? I learned that the CCD sensors had much slower readout than CMOS, and a global readout is only possible with CMOS. Googling a bit confirms this. But these days, the AI response may be yet too unreliable.

 

[monte12345]

Google "Sensor Scan Time for the Nikon D70" and you get this.

Sensor Scan Time for the Nikon D70

The Nikon D70 does not have a sensor scan time because it uses a CCD sensor with a global electronic shutter, rather than a CMOS sensor with a rolling shutter. The global electronic shutter eliminates the rolling shutter effect, which is the time it takes for a sensor to scan from top to bottom.
Here are the key points regarding the D70's shutter and sensor technology:

• Global electronic shutter: In addition to its mechanical focal-plane shutter, the D70 can use an electronic shutter in conjunction with its CCD sensor. This means the entire sensor is exposed at the same time, unlike a rolling shutter that exposes the image from top to bottom over a short period.
• High flash sync speed: The global electronic shutter allows the D70 to achieve a flash sync speed of up to 1/500 second, which is much faster than many cameras of its time. Some photographers have even found ways to synchronize flash at speeds up to 1/8000 second using manual settings or non-dedicated flash equipment.
• CCD vs. CMOS: Most modern digital cameras use CMOS sensors, which typically have a rolling shutter effect that can cause distortion with fast-moving subjects. The D70's CCD sensor and its global shutter avoid this issue.

What started this was it was time to re-charge the battery in the D70 and I got curious about what the sensor scan times was for this old camera. My result confirmed my memory that it was a CCD sensor camera and I learned that CCD sensor's are global which I did not know.

BTW further checking via Google today reveals that CCD sensors are inherently global but the CMOS has a higher Sensor Readout Speed than CCD. I suspect that is because CMOS has the amplifier and A to D conversion on each photosite while CCD does off chip one at a time single amplifier A to D conversion. It also noted that Global is now possible with CMOS sensors.

BTW, I am far from at expert on these sensors, I just remember the arguments about which was better in terms of Image Quality. Because when Nikon was using CCD's they were notable for having less noise than the CMOS equipped Canon cameras and the Nikon versus Canon arguments have been going on since Nikon introduced the Nikon M and then the S model rangefinders.

 

[Robert Salton]

BTW further checking via Google today reveals that CCD sensors are inherently global

They aren't. Only interline CCDs can have an 'inherent' global shutter, FF and FT ones can not.

I suspect that is because CMOS has the amplifier and A to D conversion on each photosite

To my knowledge, there currently is no sensor for consumer cameras with per pixel ADC.

It also noted that Global is now possible with CMOS sensors.

Been so for a long time, global shutter CMOS are around since the early 2000s.

 

[photoholiko]

For me the D70 was the worst camera I ever owned, under exposure, focusing, just unreliable, it did manage some very good shots occasionally, but we just didn't get along, I'm not sure I could blame it on the CCD because I have other CCD cameras with no issues, I couldn't wait to get rid of it and gave it away.