Paul Corfield
Well-known member
Just going back to the technical stuff - I understand where the extension tube goes - could someone very kindly clarify how / why people are using the macro tubes and how they could be useful for me. Do I purchase these or have they been cannibalised from old camera lenses?
Many thanks
Jont
A macro tube could be considered a variable extension tube. They can be useful sometimes for mounting a telenegative element in to make a sort of teleconverter. The cheap macro tubes off ebay are usually good enough. I have a couple of sets and they have been fine. I may use them for extreme close ups where you need maybe 200mm of extension to focus down to a couple of metres or less. I tend to just keep a 50mm extension tube in the scope and for anything else I vary the extension with macro tubes.
Paul.