S5 ISO range

Hi all, im new to the Panasonic world, just picked up an S5 and am working my way through the many settings in the camera. I'm finding I can't get ISOs lower than 320 even though the camera stats say 100-51200. What am I missing? In ISO sensitivity for video, the lowest it'll go is 640.

Slugger said:

Hi all, im new to the Panasonic world, just picked up an S5 and am working my way through the many settings in the camera. I'm finding I can't get ISOs lower than 320 even though the camera stats say 100-51200. What am I missing? In ISO sensitivity for video, the lowest it'll go is 640.

Click to expand...

Minimum ISO is related to the picture profile you choose. For example the minimum ISO allowed for V-LOG picture profile is 640, while for standard picture profile it is ISO 100. I think for Cine D and Cine V it is ISO 200 (but double check that).

I am guessing if the camera won't let you go below ISO 320 then you are possiblity using HLG profile???

So try out the different picture profiles and see what the minimum ISO is.

Also while on this topic, the S5 has dual native ISO. This means that the dynamic range and noise performance are best at the base (lowest ISO) and get worse as you increase the ISO level until you hit the second base ISO.

For example, in standard profile, the base ISO is 100, and as you increase the ISO there is more noise and less dynamic range. But once you hit ISO 640 there is a "bump" in performance of dynamic range and less noise.

Please visit the Photons to Photos website and look at the dynamic range graphs on there for the Panasonic S5.

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Ahh yes I figured it would be something like that. Thank you for your reply. And yer right I did have an HLG profile but also Vlog enabled.

Off The Mark said:

Slugger said:

Hi all, im new to the Panasonic world, just picked up an S5 and am working my way through the many settings in the camera. I'm finding I can't get ISOs lower than 320 even though the camera stats say 100-51200. What am I missing? In ISO sensitivity for video, the lowest it'll go is 640.

Click to expand...

Minimum ISO is related to the picture profile you choose. For example the minimum ISO allowed for V-LOG picture profile is 640, while for standard picture profile it is ISO 100. I think for Cine D and Cine V it is ISO 200 (but double check that).

I am guessing if the camera won't let you go below ISO 320 then you are possiblity using HLG profile???

So try out the different picture profiles and see what the minimum ISO is.

Also while on this topic, the S5 has dual native ISO. This means that the dynamic range and noise performance are best at the base (lowest ISO) and get worse as you increase the ISO level until you hit the second base ISO.

For example, in standard profile, the base ISO is 100, and as you increase the ISO there is more noise and less dynamic range. But once you hit ISO 640 there is a "bump" in performance of dynamic range and less noise.

Please visit the Photons to Photos website and look at the dynamic range graphs on there for the Panasonic S5.

Click to expand...

Slugger said:

Ahh yes I figured it would be something like that. Thank you for your reply. And yer right I did have an HLG profile but also Vlog enabled.

Click to expand...

Glad to hear it was helpful.

I mentioned before about Bill Claff's Photons to Photos website dynamic Range chart. Here it is:


Note that at ISO 640 on the chart there is a little "blip" where the dynamic range (and ISO performance) receive a boost.

This chart, as far as I can tell, correlates to both RAW stills as well as standard picture profile in JPG'S and video.

As you discovered, when shooting video (or JPG's) in V-LOG profile, your base ISO is 640. That is where you get the best dynamic range and lowest noise.

The second base ISO for V-LOG is at ISO 4000.

Basically, the second base ISO is always two and two-thirds stops below the normal base ISO for whichever picture profile you are using.

Second base ISO isn't a game changing difference, but it does mean that those higher ISO's produce images that are two-thirds of a stop "better" than they normally would (in terms od dynamic range and noise performance).