Current Optics Studies
01 / Sensor Telemetry
Signal to Noise in Deep-Sky Imaging
Why total exposure time, not single frame length alone, drives the quality of a deep-sky image.
02 / Filter Physics
Narrowband Filters and Emission Lines
How narrowband filters isolate emission lines and why they reduce light pollution.
03 / Optical Engineering
Petzval Field Curvature and Field Flatteners
Why the edges of a wide-field image can be soft, and how optical designers correct it.