AKG D900 shotgun

["ambystomam" ambystomam]

Hello,

I am a newbie.  Can anyone tell me if they have any experience using
the AKG D900 microphone for nature recording?  I know it is old,
probably in the neighborhood of 30 to 40 years.  My interest is to use
it for recording bird audio.  I can't seem to find any information
about its frequency range or pattern on the internet.

Thanks for any info!


Jeff