sony a33 video looks grainy? any tips?

Hey Im just curious if any of the a33 or a55 users have any tips for shooting video? I am using the a33 with the kit lens and the video seems to be a little grainy. thanks. These are straight off the camera. Sorry for the 3rd one i had it on florescent light or something. It seems to me that in order to get the nice sharp video the light has to be very good.

http://www.youtube.com/watch?v=FehkMMX0N2I

http://www.youtube.com/watch?v=lN14G2Ii8U8

http://www.youtube.com/watch?v=ugmp94VyFfc

tlerr said:

It seems to me that in order to get the nice sharp video the light has to be very good.

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That's correct; and true when shooting video with pretty much any camera. Your examples look normal to me for the conditions.

Use a brighter faster lens I've found the 35mm f1.8 to be good, or purchase an led video light to boost ambient light. When shooting video I use led video lights running at a around 600 lux and dial the exposure compensation down on my a33 to -2, the video looks amazing and the focus is super fast and razor sharp. And best of all absolutely no grain.

Yeah I want to try and get my hands on that 35mm 1.8 sony lens to try out. Should I be setting the shutter speed/ apeture to anything before shooting video?

tlerr said:

Yeah I want to try and get my hands on that 35mm 1.8 sony lens to try out. Should I be setting the shutter speed/ apeture to anything before shooting video?

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Straight from the a33 user manual :

Recording movies
1 Press the MOVIE button to start
recording.
• Movie recording can be started from any exposure mode.
• The shutter speed and aperture are adjusted automatically.
• The camera continues to adjust the focus when it is in autofocus mode.
2 Press the MOVIE button again to stop recording.
MOVIE button
Shooting techniques

• The following settings that were set during still image shooting are used without change. – White Balance – Creative Style
– Exposure compensation – AF area – Metering mode

• Exposure compensation can be used during movie recording. • Start recording after you adjust the focus. • When [AF area] is set to [Local], you can change the AF area during
shooting.

bazzawong said:

Use a brighter faster lens I've found the 35mm f1.8 to be good... When shooting video I use led video lights running at a around 600 lux and dial the exposure compensation down on my a33 to -2, the video looks amazing and the focus is super fast and razor sharp.

Click to expand...

If you use autofocus during video, that lens - or any other fast lens - will be stopped down to f/3.5 for shooting. And the resolution of HD video is only about 2mp, so lens sharpness is rarely a factor there. The main improvement you've listed above is more light.

tlerr said:

Should I be setting the shutter speed/ apeture to anything before shooting video?

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You can choose your preferred aperture, but only if you use manual focusing. Video shutter speed and ISO are always chosen by the camera.

To set your preferred aperture, use manual focusing and switch the control dial to A first. The aperture you select at that point will be used for your video clip.