AC90: Sample lacrosse night game under stadium lights

Looks fine and about as bright as I would expect a night game to look under stadium lights. By increasing the shutter speed you have decreased the amount of light hitting the sensor so the camera had to compensate with higher gain.
 
Why did you use 1/120? For a live event, you should be using 1/60, which would have doubled your light sensitivity.

It's true that you'll get slightly "crisper" motion with 1/120, but -- that's not how sports are shot; watch any sports broadcast on any of the major networks and they're always at 1/60th. So while your footage looks fine, you could probably have gotten it a stop brighter with less gain by using 1/60...
 
Be interested to know what other settings you used as the players all look pretty sharp and focused.
 
Mathew, thanks for the feedback.

Barry, thanks for the insight. Since I am usually shooting for both continuous-cam webcast and post-production slo-mo/still-frame, I have opted for 1/120 to minimize motion blur.

As you say, it's only marginally crisper, and I can get a lot more light into the camera at 1/60. Also, I was unaware that 1/60 is the standard for 60p, so thanks for that reference.

I'll play around with it some more and post back with observations and perhaps more footage.

C&K. Shot full manual: DRS is OFF, gamma is HD NORM, Knee is AUTO, Matrix is NORM1, Skin Tone DTL is OFF, and Auto Iris is -10.
 
This looks better. This stadium is even a bit darker, but using 1/60th (and again dialing the auto iris all the way down) I was able to keep the gain between 15dB and 23dB for a cleaner result. Sample is again a H.264 QuickTime wrap of the original .mts file:

http://www.mediafire.com/?3ruydnp7s3psv53

This is a series of three ProRes LT clips from the same file. 1st - is a straight transcode, 2nd - has the mids and saturation bumped up a bit and blacks crushed slightly in post, 3rd - has the mids pushed a little further:

http://www.mediafire.com/?mv1s76yasx1jhzc

I'll try to find time to test the same setup with a less extreme decrease in the auto-iris, and compare that with what I get by adding light in post.
 
You must log in or register to reply here.
Back
Top