Macro Photography III

Setup with 105mm on 2x converter and Mamiya 50mm reversed

I set out to show something at 5.76x macro.  This was the setup.

Subject for Size

The "subject" (I will discuss that another day) has little dark color inclusions (barely visible in this image).

Please note the working distance for this setup.  I did not measure it but by observation, it does not appear that different from that of the same setup without the 2x convertor.  I thought that probably was caused by the longer effective lens (105mm versus 210mm with 2x converter).  Longer lens equals longer working distance.  The Mamiya - 50mm greatly decreases working distance.

Machinist's Scale at 5.75x

Please note the shallow DOF (depth-of-field) is this shot.  The scale is laying directly on the cloth background.  The scale is 42/1000 inch thick which is about 1/16 inch.  NOT MUCH DOF!

Subject with Metal Inclusion

This shot is a Helicon Focus combined stack of seven shots.  It was difficult for me to produce.  I had to work on my focusing rail and adjust it.  I found that the smallest increments in which I could move the dial might not be small enough.  I worked a couple days on this and never achieved what I had envisioned.

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