I've been troubleshooting an outdoor timelapse setup and was looking to have my gh1 compensate for sunset by setting the ISO to auto as my rig will be some 20ft up in the air and i wont be able to get to it. The only mode that allows auto ISO without also changing shutter speed is shutter priority, however it seems that the ISO doesnt change under any condition, it just sits at 100. If anyone's curious about this feature, it can be found under the camera menu, in "ISO limit set", select a max limit, then hit your iso button and select auto. You an observe it in other modes by pressing the shutter halfway.
Auto ISO is broken in Shutter Priority mode
- Thread starter tonpole
- Start date
Oh ok, panasonic ships a camera with a low bitrate and everyone climbs over eachother to raise it for a nominal quality gain, but then they also ship it with a completely broken feature and no one gives a fu¢k.
Dont worry, the GH2 will be 2x better, thats why they named it GH2 right?
Dont worry, the GH2 will be 2x better, thats why they named it GH2 right?
Wow, calm down.
I'm a mostly stills shooter, and from my perspective, this feature isn't "completely broken," you're just expecting it to do something it was never designed to do... combined with possibly a small bug which allows us to turn on Auto-ISO while in S mode at all, which I don't think we should be able to do.
Auto-ISO was designed to go hand-in-hand with changing shutter speed. The camera has no auto control over shutter speed in S mode, so it's behaving as it should (which is to say, not at all).
The logic behind Auto-ISO is very simple and as follows:
- For a user-given aperture value, camera will choose a shutter speed that allows correct exposure at ISO 100, but with a minimum shutter speed value of 30 when Auto-ISO is engaged.
- If camera has selected 30, and exposure is still too low, camera will increase ISO until either a) max user-set ISO has been reached or b) exposure is correct
- If a) is true and exposure is still not enough, then lower shutter speed below 30 until it is.
In full auto mode it just adds another step to pick aperture value automatically based on the scene, before these three steps. However aperture will not be tied to the way Auto-ISO works.
It's just very basic logic and inherently tied to the shutter speed, as you see. It's designed to provide what Panasonic thinks will produce sharp-enough stills using their kit lenses with IS, and can't be adjusted. That is its sole purpose.
I'm a mostly stills shooter, and from my perspective, this feature isn't "completely broken," you're just expecting it to do something it was never designed to do... combined with possibly a small bug which allows us to turn on Auto-ISO while in S mode at all, which I don't think we should be able to do.
Auto-ISO was designed to go hand-in-hand with changing shutter speed. The camera has no auto control over shutter speed in S mode, so it's behaving as it should (which is to say, not at all).
The logic behind Auto-ISO is very simple and as follows:
- For a user-given aperture value, camera will choose a shutter speed that allows correct exposure at ISO 100, but with a minimum shutter speed value of 30 when Auto-ISO is engaged.
- If camera has selected 30, and exposure is still too low, camera will increase ISO until either a) max user-set ISO has been reached or b) exposure is correct
- If a) is true and exposure is still not enough, then lower shutter speed below 30 until it is.
In full auto mode it just adds another step to pick aperture value automatically based on the scene, before these three steps. However aperture will not be tied to the way Auto-ISO works.
It's just very basic logic and inherently tied to the shutter speed, as you see. It's designed to provide what Panasonic thinks will produce sharp-enough stills using their kit lenses with IS, and can't be adjusted. That is its sole purpose.
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Well thats retarded, they design these cameras like no one's ever going to use anything other than the kit lens with it. And why would anyone want auto aperture when that causes a dramatic change in motion? You'd think that they would allow all auto modes to be independent of one another, but i guess i'd have to pay $10k more for a "professional" camera to do that, not that a professional would be using auto-anything. I'm getting quite tired of being jerked around by these conglomerates who purposely cripple their equipment just to rip their customers off.
Surely there must be a more intelligent and less insulting way to express your confusion about equipment, the marketplace and corporate inclinations?
Why is it that people who use the word retarded as a slur usually seem the most challenged themselves?
Why is it that people who use the word retarded as a slur usually seem the most challenged themselves?
terra1
Well-known member
shoot first and ask questions later... what a horrible world it has become.
i only noticed i didn't have auto iso in full manual when i saw it appear in shutter priority mode.
when you move from light across to a dark area it lightens and gets full of noise?
VIVA TERRA FIRMA!
i only noticed i didn't have auto iso in full manual when i saw it appear in shutter priority mode.
when you move from light across to a dark area it lightens and gets full of noise?
VIVA TERRA FIRMA!
In Auto or Program, many people would want the camera to control the ISO.
In "S" (Shutter priority) you want to control the shutter speed, often to keep the speed high for moving action, even if there is some resultant ISO noise. If you select a shutter speed, but the amount of light cannot give you a proper exposure, then it's reasonable to expect that the camera could change the ISO to give you a suitable shutter speed/exposure.
On the other hand, if you are in "A" (Aperture priority), you are selecting aperture, usually to control the depth of field. In THIS case, you don't usually want the ISO noise to become high without expecting it to. So I think it's reasonable not to have auto ISO in "A" mode.
In "S" (Shutter priority) you want to control the shutter speed, often to keep the speed high for moving action, even if there is some resultant ISO noise. If you select a shutter speed, but the amount of light cannot give you a proper exposure, then it's reasonable to expect that the camera could change the ISO to give you a suitable shutter speed/exposure.
On the other hand, if you are in "A" (Aperture priority), you are selecting aperture, usually to control the depth of field. In THIS case, you don't usually want the ISO noise to become high without expecting it to. So I think it's reasonable not to have auto ISO in "A" mode.
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