HDX900 - star filter look on headlights and shart light sources
by Wynn Winberg
on
Jun 30, 2007 at 5:48:54 pm
This may just be the nature of the beast, but last night, while I was out trying to capture some good thunderstorm shots at dusk on my new HDX900, I was a bit distracted by the "four-point star filter" look that all of the tiny points of light (headlight, streetlights, et.) exhibited. I did not have my shutter engaged. Was shooting at 1080 60i. Is there a way to minimize this effect? I have another CCD camera - a Sony DSR570 - and don't remember the effect being this pronounced, but of course it's an SD camera.
Re: HDX900 - star filter look on headlights and shart light sources by john sharaf on Jul 1, 2007 at 1:31:05 am
Wynn,
The star filter effect you describe (in specular sources like headlights) can also come from the iris of the lens. The number of points often corresponds to the number of blades in the iris, especially when closed down towards the maximum.
Re: HDX900 - star filter look on headlights and shart light sources by Wynn Winberg on Jul 1, 2007 at 3:43:11 am
Dusty is right. It was on filter A. I'm a moron. Thanks for your help guys. I'll go ponder the apparent meaninglessness of 28 years of shooting experiece now.
Re: HDX900 - star filter look on headlights and shart light sources by santellavision on Jul 1, 2007 at 3:09:34 pm
Ahhhh, we all have had blond moments. Here's mine. I was having audio issues on one channel of my Betacam. So, I sent the camera in for repair and told the guy Channel one was lower in volume and I coundn't get it match Channel 2.
Well, as many of you guessed already, I had the viewfinder vol control turned down and forgot about it. Duh!
