6 inch F/8 Chief

Well that stinks, the 325 mm focal length lens was dropped from the available lens catalog so you can’t make the design I had posted here unless you make the lens.  However there is one more 6 inch design that uses commercial lenses and hopefully they will still be available.  I uses 220  and -250 mm lenses giving a little bit shorter BFL, a final F ratio of F/7.6 and a Strehl of .993.

 

6inchf8 220-250