GH4 Manual shutter, manual aperture, auto iso

[Ozpeter]

Is there any GH model (or its siblings like the G6 or GX7 etc) either factory or hacked which provides manual shutter speed (needed to relate to frame rate), manual aperture (need to control depth of field) and auto iso (needed to ensure that if the illumination level of the scene varies during the shot the video is not over or under exposed at the desired aperture and shutter settings)? It seems an obvious thing to want, and a simple thing to do (just add "auto" to the iso options in the manual exposure settings), and if you didn't want it don't use it, but I suspect that it hasn't been done - maybe not even in the GH4.

When it comes down to it, the whole traditional thing of having P/S/A/M settings really needs revisiting - just have a single M setting instead, where you can set shutter speed, aperture, and iso, and for each of those items have an "auto" option at the end of the other possibilities. So for the olde worlde "shutter priority" setting, you set the shutter speed to whatever you want, and the aperture and / or iso to auto - etc etc. Set them all to "auto" for P mode. Seems logical to me - but maybe I'm missing something.

 

[plegilink]

Agreed, why not just add Auto ISO to the Creative Movie Mode.
Currently it seems impossible to 4K on the GH4 with Auto ISO, which seems crazy, maybe someone could explain?

 

[Bruce Foreman]

For years the cry was "Give us manual, full manual, with no auto anything".

Well, we have it. The Canons have auto ISO as an option in manual mode if one has to have that, but last thing I want is having exposure adjust itself once I started "rolling camera".

You can get "cine" modified lenses with "de-clicked" aperture for continuous exposure adjustment.

 

[hotchkiss]

.... but last thing I want is having exposure adjust itself once I started "rolling camera".

You can get "cine" modified lenses with "de-clicked" aperture for continuous exposure adjustment.

I can accomplish the same thing with any lens, de-clicked or not.

The "auto-ness" of an auto iso mode is of a different nature of either a traditiononal aperture or shutter priority mode- especially for motion imagery where both the aperture and the shutter speed are often neccesarily constrained. For run and gun work, a de-clicked lens (or any lens for that matter) is still limited by the range of the iso. Within the context of a neccessary shutter speed for the chosen frame rate, an auto iso button could offer far more flexibility for run and gun than either the "A" or "B" setting.

I agree with you Bruce. For pro work, aperture and shutter priority modes are not useful, but I'd love to have a quick, easy to engage auto-iso button/switch. Dare I say, just like a "real" video camera.