Moon Photography Camera Settings (and Why the Moon Is Different From Everything Else)

Every other subject on this astro reference — the Milky Way, star fields, aurora — is genuinely faint, demanding a wide aperture, a long shutter speed and a high ISO to gather enough light. The moon is the opposite kind of subject entirely: it's a sunlit rock roughly 384,000 kilometers away, reflecting direct daylight, and photographing it well means treating it far more like a bright daylight scene than like the dark sky surrounding it.

Why Standard Astro Settings Overexpose the Moon Badly

A wide aperture, a 15-second shutter speed and ISO 3200 — perfectly reasonable settings for the Milky Way's core — would blow the moon's surface into a featureless white disc with zero recoverable detail, because the moon is genuinely bright by comparison to the sky around it. The huge brightness gap between the moon and everything else in a typical night sky is exactly why a single frame rarely satisfies both a well-exposed moon and a well-exposed landscape or sky at the same time, a problem this page addresses further down.

The Looney 11 Rule as a Starting Point

The commonly cited starting point for a correctly exposed full moon is f/11, a shutter speed of roughly 1 over your ISO value, and ISO 100 as the base — so f/11, 1/100s, ISO 100. Computed against the standard exposure-value formula, that combination sits at roughly EV 13.6, compared with Sunny 16's roughly EV 15.0 for a sunlit scene on Earth — a genuine, calculable gap of about 1.4 stops, reflecting the moon's darker average surface reflectance (its albedo is closer to worn asphalt than to white sand) relative to a typical sunlit Earth scene the Sunny 16 rule was built around.

Equivalent Combinations at Other Apertures

The same exposure value translates to plenty of other equally valid combinations depending on the lens and depth-of-field you actually want. At f/8 and ISO 200, the equivalent shutter speed is roughly 1/380s; at f/5.6 and ISO 100, it's roughly 1/390s. None of these is more correct than Looney 11 itself — they're the identical total exposure redistributed across a faster shutter speed and a narrower aperture, or vice versa, exactly like any other exposure-triangle tradeoff on this site.

Focal Length Decides Whether the Moon Is a Detail or a Dot

The moon's angular diameter in the sky is a nearly fixed 0.52 degrees, so how large it appears in your frame is a direct function of real focal length, not sensor size or cropping after the fact. On a full-frame sensor, a 200mm lens renders the moon at roughly 1.8mm across — about 8% of the frame's 24mm height, visually just a small bright dot in a wider composition. A 400mm lens roughly doubles that to about 15% of frame height, large enough to read as a genuine subject. Reaching 600mm pushes the moon to about 23% of frame height, and a 1200mm setup (a long telephoto with a teleconverter, or a small telescope) fills nearly half the frame — the point at which individual craters and the terminator line's shadow detail become the actual subject of the photograph rather than a supporting element in a wider scene.

Focus, Stabilization and Why a Tripod Still Matters

Autofocus generally works fine on the moon, unlike on stars, because it's bright enough for most camera autofocus systems to lock onto directly — a genuine, practical difference from every other subject on this reference. Manual focus using live view zoomed to the moon's edge or a crater is still worth double-checking, since autofocus hunting at long telephoto focal lengths is common. Even though Looney 11's shutter speeds are fast enough to hand-hold on a shorter lens, a tripod becomes genuinely necessary at 400mm and beyond, where even small hand-shake is magnified by the focal length enough to visibly soften fine crater detail.

Moon Phase Changes What's Actually Worth Photographing

A full moon is the brightest phase but also the flattest to photograph — with the sun directly behind the camera relative to the moon, there are almost no shadows across the surface, so craters and mountain ranges lose most of their three-dimensional definition. A crescent or gibbous phase, despite being dimmer overall, shows dramatically more texture along the terminator (the line dividing lit and unlit surface), where long shadows from crater rims and mountains stretch across the ground and reveal genuine topography. Photographers specifically chasing detailed lunar surface shots generally prefer a phase several days from full, not the full moon itself, for exactly this reason.

Blending the Moon Into a Landscape Composition

A wide landscape frame with the moon included as a small element in the sky faces the same brightness mismatch discussed earlier from the opposite direction: exposing correctly for a dim foreground landscape at dusk or night overexposes the moon into a blown-out white circle, since the two subjects can differ by ten stops or more. The common, honest solution is two separate exposures — one metered for the landscape, one metered for the moon using something close to Looney 11 — blended together in post-processing, rather than pretending a single frame can capture both correctly at once. Some photographers instead time a shoot for the brief twilight window when a rising or setting moon and a still-lit sky are closer in relative brightness, narrowing the gap enough for a single exposure to hold both, though this window is short and depends heavily on the specific date and moonrise time.

Since moonrise and moonset times and exact phase both directly determine when this twilight-blending window happens, MoonCadence is worth checking alongside your camera settings when planning a moon shoot around a specific date and location.