Stephen Tonkin wrote:

Beeblebrox wrote:
Can anyone recommend a simple and cheap collimation tool that might
help with this operation?

35mm film canister, with a 2mm hole punched centrally in each end.

Best,
Stephen

I have one - punched by the maestro himself. It works.

Cheers

Martin

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Martin Frey
http://www.hadastro.org.uk
N 51 02 E 0 47