First lights with the 900mm f8

Aperture Matters - Getting to First Light

Aperture Matters Project Notes

Not quite first light...

G11 refurbishment

Got inside the new-to-me G11

Aperture Matters

Focusing Thought Experiments

A Big Lens

Two more E100 sheets from GSSP 2022

Cephus region on 4x5

GSSP 2022 Report

Preparations for the GSSP 2022

Some success with the Mak project

Dusting off the kit

ISS and the Crescent Moon

Large format focus testing