Whenn you shoot 25 fps and 1/50 of a second as https://www.dpreview.com/forums/thread/3842701
should you be on shutter priority? Or manual. My video is very dark and i cannot figure why. I was on aperture priority with 1.8 apeture as i want shallow dof.
how do i brighten the whole video in one go.?
Normally on Manual, than you can set shutterspeed at 1/50 and also the aperture like 1.8. Depending on the light situation like a bright sunnyday you will need an NDfilter to temper the light or in dark situations you need to increase the ISO of your camera (when not automatic). Be careful with too high ISO settings because it will add noise.
I would be on manual and adjust aperture and ISO to get enough light (using zebras to protect the highlights.) In this case you'd need to raise the ISO.
In Vegas you can use the color grading panel to change the brightness. Try the exposure control or curves.
@RogerS as @perrywynkles described, he wants to use the 180 degrees shutterrule, means fix 1/50 shutterspeed at 25fps together with a maximum of DOF, means full aperture 1.8. The brightness can than only controlled by an ND filter in too bright situations or raising ISO in too dark situations.
@3POINT As the user stated that "My video is very dark and i cannot figure why" it is necessary to raise the ISO as the user is already at the maximum aperture and shutter speed is fixed. That is what I said above to focus the advice on this particular problem.
He/she can also attempt to brighten it in post. (It was unclear if the desired fix was in-camera or in Vegas.)
Good point on ND as it will become the next problem- reducing brightness when shooting at a wide open aperture under daylight.
The user filmed in aperture priority mode, means fixed aperture and flexible shutterspeed. Still not enough light, indeed ISO setting too low. My camera has automatic ISO when using in aperture or shutter priority mode.
If you share your camera model, you'll likely get more detailed advice.
Nikon D3200. On manual setting as soon as i change position is it over or under exposed I cannot have auto focus as the video mike go pick up the auto focus motor.
Thanks everyone . I was unable to comment last nigh no save button showing
"On manual setting as soon as i change position is it over or under exposed"
With fixed shutter speed and fixed aperture, the remaining leg of the three-legged stool is ISO. You should be able to find an ISO setting that gives you the correct exposure for a fixed scene...
If, on a bright day, your view is still over-exposed at ISO = 100, you'll need to add a neutral density filter to reduce the light entering the lens. With that shutter speed and aperture, if the exposure is too dark at ISO 6400, you'll need to add light, or you're just screwed. You may be screwed anyway because of the sensor noise with ISO > some sweet spot for your camera.
I often shoot sports in extremely bright sun, and I use 1/60 sec-f8 with a 0.9 ND filter. I usually want more depth of field because of all the subjects running around. My camera has the ability to set a range for ISO. A range of 100-400 is typical in bright situations if I occasionally zoom into shadows. If I see over-exposure on the Histogram, I might tighten the range to ISO 100-200. Get the drift?