Field notes
Stories, guides and updates from under Bortle 1 skies.

Understanding Calibration Frames
Every clean astrophoto hides a second set of exposures you never see. Here is what calibration frames do, and why they turn a noisy snapshot into a deep, smooth image.

Dual-Band Filters: One of the Best Upgrades for Color Astrophotography
One accessory that rescues a moonlit night and pulls nebulae out of bright skies. How dual-band filters work, and why they are the best upgrade for a color camera.

What Bortle 1 Skies Let You Capture That Your Backyard Never Will
Why a dark sky is the one upgrade no camera or filter can replace, and what Bortle 1 lets you capture that a light polluted backyard never will.

Remote Astrophotography with N.I.N.A.: Automating Your Journey Through the Cosmos
How automation software like N.I.N.A. turns a full night of imaging into a sequence you set once and let run, from focus and guiding to dithering and the meridian flip.

Understanding Nebulae: Which Types Exist and How to Photograph Them
Emission, reflection, dark and planetary: the four families of nebulae, what makes each one glow, and how to capture them with a one-shot color camera.

Astrophotography Processing Software: Turning Raw Data into Stunning Images
Capturing the photons is only half the job. A tour of the software that turns raw frames into a finished image, and where each tool fits in your workflow.

Galaxies: Capturing Island Universes Through Your Telescope
Light that left its source millions of years ago lands on your sensor tonight. What it takes to photograph galaxies, and which ones a wide-field rig captures best.

Exploring the Different Types of Astrophotography Targets
From planets next door to galaxies millions of light years away. A field guide to what is out there to photograph, and which targets suit your gear.

Choosing the Right Telescope for Astrophotography
Refractor, reflector or compound? A plain-language guide to matching a telescope to the targets you want to shoot, your budget, and your patience.