Slow Shutter clarification

Psynema

Psynema

Well-known member
I read that slower than 1/30th must be in 720 P mode, but in 1080 mode

If i set movie expsoure to S (shutter mode) and press the dial down I can bring it down to 1/4th of a second.

Odd thing is, the video records just fine (it's not blurred or streaky like typical slow shutter speeds). Seems like it's giving you the EV of a 1/4 shutter but without the blur?

WTF is going on? Is it just upping the ISO and disguising it as a shutter speed setting when I press the dial down? It still says 1600 ISO at the bottom no matter what.
 
As soon as you are not in creative movie mode but start video from any of the still modes it goes to automatic exposure. Hence always use creative movie mode if filming...
 
Oh sorry, misread. Never used anything but manual in movie mode. Don't want the camera to play around with exposure once I'm shooting. Seems like the camera give you false information in this circumstance. Don't have it here to test the thing you have run into but the info given about shutter speeds below 1/30 when the firmware came out was that it'll only work in 720 - in 1080 1/30 is the slowest it will go.
 
Martti Ekstrand said:
Oh sorry, misread. Never used anything but manual in movie mode. Don't want the camera to play around with exposure once I'm shooting. Seems like the camera give you false information in this circumstance. Don't have it here to test the thing you have run into but the info given about shutter speeds below 1/30 when the firmware came out was that it'll only work in 720 - in 1080 1/30 is the slowest it will go.
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Odd, the only thing I can think of if it's just pushing the ISO and saying it's shutter speed compensation.

So to clarify if anyone wants to chime in
1. Set the camera to 1080 Full HD
2. Set Exposure mode to S (Shutter) IN THE MENU ONLY NOT THE DIAL. THe DIAL STAYS ON MOVIE MODE.
3. Push the dial in and on the bottom of the screen you'll see the shutter dip below 1/30th as you turn the dial and it will stop at 1/4th of a second. The image gets brighter as you turn.
4. Video is not blurred at 1/4th of a second, but has the EV Value.

As I said before, I'm assuming it's "Lying" and actually boosting the ISO but claiming it's shutter speed (I have firmware 1.2 btw).

BUT it only goes up to 3200.

On 1600 ISO going from 1/30th of a second to 1/4th of a second would take me well beyond 3200 ISO and the camera keeps getting brighter as I go. the ISO number remains the same.

Odd little camera, but I'm stoked knowing it now has way more low light capability than I originally thought.

At least I can shoot in near darkness now and get an image (an ugly one with plaid sensor stripes, but I'll take it for $800). Hell it actually looks nice brightened in post and in B&W, so I can make a Pi inspired short sans lighting gear LOL.
 
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Read Martti's post again -- he said to only use "Creative Movie Mode". You can record movies in any mode, including shutter priority -- but it's not really doing what you want, you don't have total manual control, unless you're using specifically the "creative movie mode" (which is the setting on the dial with the movie camera and the "M")
 
Barry_Green said:
Read Martti's post again -- he said to only use "Creative Movie Mode". You can record movies in any mode, including shutter priority -- but it's not really doing what you want, you don't have total manual control, unless you're using specifically the "creative movie mode" (which is the setting on the dial with the movie camera and the "M")
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I AM USING THAT MODE!!!

BY SHUTTER PRIORITY I DO NOT MEAN THE DIAL...I mean in the menu's movie recording mode.

The dial is set to MOVIE MODE with the camera and the M

My aperutre is fixed at 1.4 (manual lens) and my ISO maxed out at 1600 and displayed 1600 ISO the whole time.
 
Nice find indeed! Instead of going 'WTF my camera is lying to me. Damn Panasonic, damn their eyes!" as some would do, you realise it can be utilized as a hack to pump the ISO in video mode. Have to test this - as I said, I haven't explored any other mode but full manual. Do you do this with the kit lens or a adapted one?
 
Martti Ekstrand said:
Nice find indeed! Instead of going 'WTF my camera is lying to me. Damn Panasonic, damn their eyes!" as some would do, you realise it can be utilized as a hack to pump the ISO in video mode. Have to test this - as I said, I haven't explored any other mode but full manual. Do you do this with the kit lens or a adapted one?
Click to expand...

Adapted Pentax 1.4 Asahi so the aperture was in no way moving. And again 1600 is the ISO displayed the whole time. Going from 1/30th to 1/4th of a second takes you beyond 3200 ISO, so I'm baffled what's going on. I'm glad I found this out, but still odd. Obviously it's not really a 1/4 sec shutter since it's not blurring and obviously it's not the aperture, and obviously the ISO doesn't go up to 6000...so yeah :Drogar-Shock(DBG):

12000 ISO equivalent then I guess. I might make a video to clarify things
 
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I've tried that with the GH1 kit lens but can't get below 1/30 shutter in creative movie mode, FHD, exposure mode S, regardless of where the focus knob is set (AFS, AFC, or M). Pushing the dial in switches between shutter control and exposure adjustment. Are you sure you're in FHD instead of SH? Can you do what you're doing with the kit lens or does it only work with your Pentax lens?
 
noirist said:
I've tried that with the GH1 kit lens but can't get below 1/30 shutter in creative movie mode, FHD, exposure mode S, regardless of where the focus knob is set (AFS, AFC, or M). Pushing the dial in switches between shutter control and exposure adjustment. Are you sure you're in FHD instead of SH? Can you do what you're doing with the kit lens or does it only work with your Pentax lens?
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I don't have the kit lens.

Yes I'm absolutely in FHD mode. Again, if I was in 720p mode it would be blurring due to a low shutter.

Pushing the dial in (like expsoure adjustment) is what's doing it but it's reading like it's slowing the shutter - you should see the shutter speed slow down as you turn the dial with it pressed down.

Try shooting with the lens off option maybe.

I have 1.2 firmware btw
 
BhambuNath said:
I too can't get it below 1/30 with the kit lens and I've also tried shooting without lens.

I have firmware 1.2.
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AGAIN,

it doesn't go below 1/30 actually but will display slower speeds in the HUD down to 1/4. You get the EV value of a 1/4sec shutter, mimicking a 12000 iso.

I'm the only one who has this then?
 
I can repeat this yep.

You adjust the Exposure mode to 'S' while in Creative movie mode, and it seems that by clicking in the wheel you can dial down below 30, which seems to boost overall brightness without adjusting shutter speed. I'm using an adapted FD lens.

I've now dialed back the ISO to 200 but its still really bright in my dark and dingy hallway!!
 
i think this is a bug in the camera. If i flip between M and S within creative movie mode now the shutter speed says something very different, but the image is the same. Then by clicking into the dial its got stuck at 1/4000 of a second, unless i click again and it seems to jump down to 1/30 again.

Having said that i just looked in the manual (page 108) and it looks as though, when in CMM and having selected 'S', if you click the wheel in (and the numbers turn white) its now controlling exposure compensation rather than shutter speed... not quite sure what that means!
 
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nobbystylus said:
i think this is a bug in the camera. If i flip between M and S within creative movie mode now the shutter speed says something very different, but the image is the same. Then by clicking into the dial its got stuck at 1/4000 of a second, unless i click again and it seems to jump down to 1/30 again.

Having said that i just looked in the manual (page 108) and it looks as though, when in CMM and having selected 'S', if you click the wheel in (and the numbers turn white) its now controlling exposure compensation rather than shutter speed... not quite sure what that means!
Click to expand...

Whatever it means I can not do this in full manual mode so it's odd why s exp. mode would give me two more stops (again my image brightens as I turn the dial to 1/4th of a second and is impressively sensitive to light.

Eventually I'll get around to posting a video of this to clarify things.

It pretty much is exposure comp. BUT reads it as the shutter slowing down, but this is not available in manual mode and 1/4th of a second at 1600 iso is beyond the camera's 3200 iso comp ability, so I'm confused...but happy.
 
ProjX v2.0 said:
I'm still on firmware 1.1 and this seems to be working for me. I see it boosting exposure comp. so maybe that is all it is doing?
Click to expand...

It's def. not the shutter speed since there's no blur.

I'm just curious as to...

1. WTF it says the shutter speed is 1/4th
2. Why can't I do this in Manual Mode
3. How this even works - as again, the brightest setting on this "quirk" at 1600iso = 12000 on a 3200 iso camera. Odd.
 
I don't think it's really 1/4 shutter even though it says so.
If you drop it back down to 720P mode and manually set your shutter to 1/4, it's way brighter even with the blur.


Also notice you only get 3 actual bumps in exposure once you hit 6, 5 and 4 in 1080P mode. All the others seem to have no effect.
 
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This seems to work in 720P mode too. You get 3 extra bumps in exposure.
All you need to do is set your EXPOSURE MODE to S, push your dial in and max it out.
 
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