5 Best Canon Lenses for Astrophotography in 2025

Because the stars aren’t going to photograph themselves

Let’s be real: astrophotography isn’t just a hobby. It’s staying up until 3 a.m. with frozen fingers and a full memory card, chasing pinpricks of light in a sky so vast it makes your taxes feel insignificant. And you know what makes that romantic cosmic dance so much sweeter? The right glass.

Canon’s RF lens lineup in 2025 has something for every stargazer — whether you’re a tripod-toting deep-space dreamer or a “wait, is that Orion?” kinda beginner. From ultra-wides that gulp down the galaxy to telephotos that’ll have you moon-stalking like a lovesick astronomer, here’s our top 5 Canon lenses for shooting the stars.

Table of Canon’s lineup of lenses for Astrophotography:

Category	Lens	Who It’s For
Enthusiast	Canon RF 16mm F2.8 STM	The spontaneous stargazer who wants to shoot the Milky Way and still pack light. Fits in your hoodie pocket and your budget.
Enthusiast	Canon RF 24mm F1.8 MACRO IS STM	The creative explorer who wants to shoot wide night skies and get artsy with close-ups. One lens to rule all road trips.
Enthusiast	Canon RF 800mm F11 IS STM	The moon-lover who whispers “whoa” every time they zoom in. Big reach, no gym membership required.
Enthusiast	Canon RF 100-400mm F5.6-8 IS USM	The flexible adventurer who wants to shoot the moon one night and a hawk the next. Two birds, one lens.
Professional	Canon RF 15-35mm F2.8L IS USM	The astro fanatic chasing razor-sharp Milky Way shots who doesn’t mess around. You pack a star tracker and snacks.
Professional	Canon RF 14-35mm F4L IS USM	The landscape-astro hybrid who wants pro-quality and a lens that won’t destroy your shoulders on the hike up.
Professional	Canon RF 85mm F1.2L USM	The dreamer with a soft spot for creamy bokeh and cosmic portraits. You’re here to make starlight look like velvet.
Professional	Canon RF 1200mm F8L IS USM	The deep-space hunter who’s probably said “I can see Saturn’s rings” unironically. You came to zoom, and you don’t play.

Top 5 Canon Astrophotography Lenses

1. Canon RF 15-35mm F2.8L IS USM

AKA: The Milky Way Maestro

This lens is like the overachiever in your friend group — wide, fast, sharp, and just a little smug about it. That 15-35mm focal range is perfect for sprawling nightscapes, and the f/2.8 aperture slurps up starlight like a telescope on Red Bull. Plus, it’s tack-sharp from corner to corner — your stars won’t smear into those weird little comets.

Oh, and it’s weather-sealed, so go ahead and shoot in the cold, damp wilderness!

Key Features

• Ultra-wide 15-35mm focal length
• Fast f/2.8 maximum aperture
• Optical Image Stabilization
• Weather-sealed construction
• Nano USM autofocus motor​

Pros

• Wide enough to eat a galaxy for breakfast
• Super sharp — even in the corners
• Built like a tank with weather sealing

Cons

• Costs as much as a plane ticket to Mars
• On the heavier side
• Canon still selling the hood separately? Rude.

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2. Canon RF 85mm F1.2L USM

AKA: The Bokeh Wizard with Stars in Its Eyes

This one’s a little dramatic. And that’s exactly why we love it. With a ridiculous f/1.2 aperture, the Canon RF 85mm F1.2L USM is the low-light king. Technically it’s a portrait lens, but who says portraits can’t involve stars? Use it for dreamy shots of people silhouetted under the Milky Way, or just bask in that luscious background blur while the stars twinkle like fairy dust.

It’s heavy, expensive, and not subtle. But neither is astrophotography. Own it.

Key Features

• Fast f/1.2 maximum aperture
• 85mm focal length
• Blue Spectrum Refractive optics
• Weather-sealed design
• Ring-type USM autofocus​

Pros

• That f/1.2 light gobbler is chef’s kiss
• Buttery bokeh that’ll make you weep
• Incredibly sharp even wide open

Cons

• Costs more than your first car
• Built like a small asteroid
• Kind of a niche tool, but oh, what a niche

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3. Canon RF 1200mm F8L IS USM

AKA: The Space Cannon

This isn’t just a lens — it’s a commitment. A 1200mm focal length will get you close enough to count craters on the moon or stalk Jupiter’s moons like a celestial paparazzo. It’s not meant for casual stargazing — this is astrophotography on hard mode. The f/8 aperture means you’ll need good light and a sturdy mount (and maybe a small forklift), but once it’s set up? Unreal.

Key Features

• 1200mm super-telephoto focal length
• Fixed f/8 aperture
• Optical Image Stabilization
• Weather-sealed construction
• Tripod collar for stability

Pros

• Zooms so far you’ll hear the moon’s secrets
• Incredibly high-quality glass
• Surprisingly stable with image stabilization

Cons

• Might cost more than your camera, car, and couch combined
• So big it deserves its own seat on a plane
• Definitely not for spontaneous night walks

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4. Canon RF 24mm F1.8 MACRO IS STM

AKA: The Astro-Hiker’s Best Friend

Don’t let the “macro” in the name fool you — this thing loves night skies just as much as flower petals. The 24mm focal length is wide enough for beautiful landscape shots, and the f/1.8 aperture makes it a solid performer once the sun dips out. It’s light, it’s fast, and it won’t break your spine (or your wallet).

If you’re hiking up mountains or squeezing gear into a carry-on, this lens deserves a spot in your bag.

Key Features

• 24mm wide-angle focal length
• Fast f/1.8 maximum aperture
• Macro capability with 0.5x magnification
• Optical Image Stabilization
• STM autofocus motor​

Pros

• Lightweight but still mighty
• Excellent low-light chops
• Macro adds bonus creativity points

Cons

• No weather sealing (bring a Ziploc bag?)
• Slight distortion at the edges
• Canon still doesn’t include a hood (seriously, why?)

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5. Canon RF 16mm F2.8 STM

AKA: The Tiny Cosmic Sidekick

This little pancake of a lens is the definition of “don’t judge a book by its cover.” It’s light enough to forget you’re carrying it, fast enough for night skies, and wide enough to get those jaw-dropping Milky Way shots. Sure, it’s not as sharp or refined as Canon’s luxury glass, but it punches way above its price tag.

Perfect for beginners, backpackers, or anyone who likes their gear light and their images big.

Key Features

• Ultra-wide 16mm focal length
• Bright f/2.8 maximum aperture
• Lightweight (just 165g!)
• Compact pancake design
• STM motor for smooth focus

Pros

• Ridiculously affordable
• Ultra-wide, ultra-fun
• Fits in a hoodie pocket

Cons

• Edge distortion if you pixel-peep
• Plastic-y build
• Not weather-sealed (bring a snack bag, again)

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Final Thoughts: So, Which One’s Your Star-Catcher?

The truth? There’s no one-size-fits-all lens for astro work. It’s all about how you want to shoot the stars.

• Want to go wide and cinematic? Grab the 15-35mm f/2.8.
• Feeling artsy and romantic under the stars? Try the 85mm f/1.2.
• Obsessed with lunar detail? The 1200mm f/8 is your beast.
• Need something light and versatile? Say hi to the 24mm f/1.8.
• Starting out or traveling light? The 16mm f/2.8 won’t let you down.

Whatever you pick, just remember: the stars don’t care about your gear — but they do reward patience, passion, and a thermos full of something warm. So grab your tripod, bundle up, and get out there.

Clear skies and clean sensors to each of you!