DWARF 3 Filter Test: 7nm vs 30nm on the Eastern Veil Nebula
We measured a front mounted 7nm filter against the DWARF 3 built in 30nm filter on the Eastern Veil Nebula, matched regions, same night. Here is what the SNR numbers actually showed.
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Find settings to try, processing techniques to learn, and real sessions to guide your next night under the stars. Explore DWARF 3 advice and our expanding Draco coverage.
Settings & Calibration · Processing · Imaging Sessions · Draco
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DWARFLAB Draco vs. DWARF 3: The Dragon and the Dwarf
The Dwarf 3 surveys the night sky. The Draco goes hunting. That’s the split shaping up this week around Draco, the smart telescope DWARFLAB is teasing alongside its DWARF 3. For several…
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From 8 Minutes to 157 Hours: One Year of Deep-Sky Imaging success with the DWARF 3
M51 was the first target with the Dwarf 3. August 2025, Alt-Az mode, 8 minutes and 30 seconds of 15-second subs on a galaxy low in the summer sky. The telescope was…
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Trifid Nebula M20: A Warm-Up Session Low in the Sagittarius Steam
I didn’t go into the July 16 session expecting a keeper. The Trifid nebula was more of a question than a plan: what does the DWARF 3 actually do with a target…
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Iris Nebula NGC 7023: Six Hours of Blue Light With No Duo-Band Shortcut Available
The iris nebula (NGC 7023) is a reflection nebula, not an emission nebula. The distinction isn’t cosmetic. An emission nebula like the Eagle or the Clamshell glows because ultraviolet radiation from nearby…
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Eagle Nebula M16 in EQ Mode: What 12 Minutes of Alt-Az Data Couldn’t Show
The Eagle Nebula (M16) first showed up in this blog back in January, as a cautionary example rather than a subject in its own right. The Alt-Az vs EQ mode comparison post…
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Rho Ophiuchi Cloud Complex, Captured with the DWARF 3
Antares and Rho Ophiuchi never gets high from a New England backyard. At roughly 42 degrees north latitude, the star tops out somewhere around 20 to 30 degrees above the southern horizon…
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East and West Veil Nebula with the DWARF 3: Cygnus’s Glowing Lace, Ten Thousand Years in the Making
The Veil Nebula is light that left its source somewhere between 10,000 and 20,000 years ago, and it’s still arriving as some of the finest, most delicate filament structure in the sky.…
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DWARFLAB Draco: Reverse Engineering a Rumored Telescope From Six Independent Clues
A telescope named Draco showed up inside the DWARFLAB app with no announcement. On its own, that would be a curiosity. Lined up against a patent, a wide-angle spec, and a trade…