Andrew ren
17-Mar-2010, 17:43
Greetings all,
So, I got my first brass from my friend. I was told it is an Euryscop(?), not sure what that means.
Now, I want to make some stops myself. I might need a couple more stops, beside the wideopen. f11 and f45.
I was told its a 10" brass, my measuring turned out it is 12"(300mm) from the waterhouse slot to the GG. I made a card board cut. the inner diameter is about 45mm.
do the math, 300 x0.93 / 45mm = f 6.2.
so what will be size of the f11 and f45, I knew the 1.4 standard was not been used @ 1890's.
Cheers
Andrew
all right, can i just simply do this?
f11-- 279/11
f45-- 279/45
So, I got my first brass from my friend. I was told it is an Euryscop(?), not sure what that means.
Now, I want to make some stops myself. I might need a couple more stops, beside the wideopen. f11 and f45.
I was told its a 10" brass, my measuring turned out it is 12"(300mm) from the waterhouse slot to the GG. I made a card board cut. the inner diameter is about 45mm.
do the math, 300 x0.93 / 45mm = f 6.2.
so what will be size of the f11 and f45, I knew the 1.4 standard was not been used @ 1890's.
Cheers
Andrew
all right, can i just simply do this?
f11-- 279/11
f45-- 279/45