Vintage Celestron 2X 2" Barlow corrector the FF70 APO is versatile

the FF70 APO is versatile and can be used for both visual observation and astrophotography

or is loose and does not stay firmly in place

Five colored filters:  Wratten numbers 12

These do not affect the image quality or safety of the filter

31 kg) Tripod Weight 12

Vintage Celestron 2X 2" Barlow corrector the FF70 APO is versatileThis is a used Celestron 2X 2" Barlow in good condition. Of course, it's Japanese made. There is a mark on the optics that can be seen in the provide photos, and the body is unmarked. This includes the original box, but no dust covers. When inserted between the eyepiece and telescope, this 2X Barlow lens doubles the magnification of all your 2 eyepieces!