Dissapointment from Calstar XX

11/11 Transit of Mercury

Deep scans of E200 from MBOSP

Calstar XX Notes

USB driven battery pack for Pentax 67

Fixing a USB port

Interesting challenges have cropped up in the backyard testing.

Deeper scan of the Ektachrome 100

What to do to fix trails in RA

Ektachrome shootout: Expired E200 vs new E100

Acros at GSSP 2019

Acros vs Pancro 400 for Astrophotography

Notes from GSSP 2019

Spring 2019 - a break in the clouds