Antares 0.5V film Solar Filter mounted in cap, with rubber cover.

Baader 0.5V film for safe visual solar observation and photography.

 Use this 100% Safe Solar filter to mount on your small opening in your telescopes cap.

You can also make a cardboard frame to mount this item in and place it over your telescopes objective.

1.3/4" Internal diameter with metal holder.

Includes rubber dust cap so may be permanently mounted.