help identify my oiii filter

[markse68]

Hi, I bought this second hand Astronomik oiii filter a while back but wonder if anyone knows/remembers its specs? I think it must be an older version- it’s t2 mount but has no engraving at all on the housing and the case just identifies it as an oiii- no further details. Current production offers 6 or 12nm bandwidth but earlier production included 13nm. Just wondering which type this might be. Thanks

Mark

[carastro]

You have got a bar code on the box, perhaps Astronomik can identify it for you.

Carole 

[markse68]

22 hours ago, carastro said:

You have got a bar code on the box, perhaps Astronomik can identify it for you.

Carole 

yes i should email them! Thanks Carole

edit: They're quick to answer! (astro shop actually) Apparently it’s a 12nm c2013 👍

Edited August 31, 2020 by markse68