a 180mm lens that would make an awesome macro lens for 8x10

[Dan Fromm]

Hi Dan,

Not meaning to quibble, but...

If you use 1:1 as the close-focus limit, your maximum lens FL is about 1/2 the bellows draw, which would be 18" in this case.

The other 2xFL (@ 1:1) is in front of the lens and is not involved in the bellows draw calculations.

- Leigh

Leigh, he wants to go to 3:1

 

[Leigh B]

OK. I find no mention of 3:1 earlier in the thread.

- Leigh

 

[Dan Fromm]

OK. I find no mention of 3:1 earlier in the thread.

- Leigh

See post #18 in this thread.

Dan "none so blind as he who does not want to see" Fromm

 

[Leigh B]

See post #18 in this thread.

This is getting quite confused.

Post #18 is by Bob Carnie, not the OP, and he does not mention a 36" bellows.

Jim Galli mentions a 36" bellows in his response to Bob's post, again not the OP.

My post was directed at the OP's original question. (Apologies for trying to stay on-topic.)

- Leigh

 

[Dan Fromm]

This is getting quite confused.

Post #18 is by Bob Carnie, not the OP, and he does not mention a 36" bellows.

Jim Galli mentions a 36" bellows in his response to Bob's post, again not the OP.

My post was directed at the OP's original question. (Apologies for trying to stay on-topic.)

- Leigh

See posts 18, 19, 21, 23. The OP is long gone, Bob Carnie and I have been discussing Bob's situation. Threads drift. Live with it.