exact measure of FH 8 inch f15 objective cell ?

[mahoref]

Hello,
i am interessed at order  of the achromat 8 inch f15 objectiv
can you give me exact measure of the objective cell ?
i planed the tube flange for this

give it  a Spotdiagramm of this Objectiv ?!- the average strehl 0,93  say me not enough
how is the payment regulation  to german ?
Regards Marc
 can  i have a origin  picture of this objective ?!

[Mike]

Hello, would you please email me for the information required at [e-mail]