Re: Macro Toys?
Add a focusing rail to the list of handy macro toys. When you get into the true macro range, depth of field goes from limited to vanishingly small, so focusing accurately on the exact point you want also becomes very difficult. The focusing rail lets you accurately focus by moving the entire camera/bellows/lens combination as a single unit, so you don't change the magnification as happens if you focus with the bellows or lens helical.
Higher-end bellows often have a focusing rail incorporated into them.
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