16 Feb Calibration: Ruler, using bellows
50 mm lens on the fully extended bellows.
Lens set to f8.
Single stack, 16 images in the stack.
Approx 659 pixels per mm. Each pixel is about 0.7 nm.
This implies that each pixel is about 7 microns.
Using the ‘slide duplicator’ I get similar magnification, but less working area. The bellows provide enough room to get some lights in.
With the 10x microscope objective it may be that we are getting
Here is an image of the USAF 1951 target, using a 10x microscope objective on the macro imaging rig. The main disadvantage is that the z-axis working distance is severely restricted.
If I understand this, correctly, this captures more than enough detail for the local forest protector weekend warrior!