I was wondering if there was any way to determine the approximate focal length of the XH-A1. I need to add some CG to XH-A1 footage that will be shot with the stock lens. However, it seems that there is just a slider in the viewfinder and no readout of what the approximate focal length would be.

Does anyone know a way to figure this out? Is there some setting in the preferences that will make this info appear in the viewer? If not, is there some formula to use based on points you can see, distance from the gate, parallax and all that jazz?

Btw, the shot will be locked off, no camera movement, so we can't use boujou to track it. While we will be setting up the cameras by eye in Maya, guessing the focal length can be a real pain, especially since this is a zoom lens the focal length may need to be a decimal value.

Any info will be appreciated.

Thanks

D

Hello Darren,

This is actually answered in another post:

http://www.dvinfo.net/conf/showthread.php?t=81683&highlight=a1+lens

In your settings on the A1, there is a Custom Functions feature that allows you to assign a numeric value to the zoom setting.

Find the chart in the thread above to convert the zoom numbers to 35mm focal lengths.

Hope this helps!

I didn't see this when I did a search. Should do just what I need.

Thanks a lot for the help

D