Benefits of a longer focal length lens

[jkwilborn (Jack Wilborn)]

Might want to look at this post or thread…

Can I move my lens further away from the the workpiece?

Hey do you know where I can purchase these? I cannot find a link. Also I have been trying to access the RDWorks forums for a few weeks now but it looks like it is dead. Do you know if it will be back or did he shut it down?