Stack a Nikon nifty fifty backwards on the front of a Sigma 200mm and you get a 4:1 reproduction ratio. Well why not? 
Here's 4 single images of a fountain pen nib, ballpoint nib, .3mm Letraset pen nib and some Junior Hacksaw teeth. Captured very quickly, with no real work holding, no proper lighting setup, and converted to jpg straight out of the camera, just to see if it works - always good to have another option.
Decent working distance, reasonable contrast, decent DOF, so stacking increments don't need to be stupidly small, I say it's a winner. It's time for me to sort out an automated capture system for focus stacking I think.
But yes, I know one of the lenses needs cleaning ߘ
Image hosted by forum (
1053251)
© johnfosteruk [SHARE LINK] THIS IS A LOW QUALITY PREVIEW. Please log in to see the good quality stuff. Image hosted by forum (
1053252)
© johnfosteruk [SHARE LINK] THIS IS A LOW QUALITY PREVIEW. Please log in to see the good quality stuff.