TIFF images scanned in as Color Positive Film, 16-bit, grayscale, 1600 dpi, Color Management = None, emulsion up, utilizing autofocus

f0005.tif	positive step wedge, 400 dpi
f0006.tif	negative step wedge, 400 dpi   focus = -0.3
	
Repeat scans
f0007.tif	focus = +1.4, 2.4 x 2.4 inches central area   (3840 pixels)
f0008.tif	focus = +1.4, 2.4 x 2.4 inches central area   (3840 pixels)
f0009.tif	focus = +1.4, 2.4 x 2.4 inches central area   (3840 pixels)

f00010.tif	focus = +1.4, 2.4 x 2.4 inches central area (3840 pixels), plate rotated by 90 degrees 


f0005.fits		FITS file of positive step wedge, 400 dpi
f0009_inv.fits		FITS image of inverted f0009.tif
f0010_inv.fits		FITS image of inverted f0010.tif
f0009_trans.fits	FITS image of transformed f0009.tif
f0010_trans.fits	FITS image of transformed f0010.tif


README_step_wedge_densities: a README file listing the density values which correspond to the steps on the step wedge.

README_catalog: a README file detailing the columns of the catalog and their units.