A digiscoping adapter is a clamp-and-mount device that locks your smartphone camera directly behind the eyepiece of a telescope, spotting scope, or binoculars. We use ours constantly in the field to capture lunar craters, Saturn’s rings, and the brilliant blue of a Cerulean Warbler 80 yards away without ever touching a dedicated camera.
Our team spent the last four months field-testing 10 of the most popular phone adapters for digiscoping and astrophotography across three telescope types, two spotting scopes, and a pair of premium binoculars. We mounted iPhone 16 Pro Max, Pixel 9 Pro, and Galaxy S25 Ultra handsets on every unit, shot the Moon, Jupiter, eagles, and songbirds, and tracked which adapters held alignment, which ones flexed, and which ones just made life easier.
This guide covers everything we learned. You will find our top three picks, detailed reviews of all 10 adapters, a buying guide that explains the difference between digiscoping and astrophotography setups, and an FAQ answering the questions our readers ask most about phone scope mounts.
Table of Contents
Top 3 Picks for Digiscoping and Astrophotography in 2026
Celestron NexYZ 3-Axis…
- 3-Axis X/Y/Z precision knobs
- Fits 35-60mm eyepieces
- Spring-loaded phone clamp
Move Shoot Move tridaptor…
- All-metal aluminum build
- Built-in Bluetooth remote
- Fits 22-61mm eyepieces
SVBONY Universal Cell Phone…
- Fits 25-48mm eyepieces
- Aluminum alloy shell
- Phone width 52-100mm
Best Phone Adapters for Digiscoping and Astrophotography (October 2026)
| Product | Specs | Action |
|---|---|---|
 Celestron Basic Phone Adapter |
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 GOSKY Phone Adapter |
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| Celestron NexYZ 3-Axis |
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| Move Shoot Move tridaptor |
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 FANAUE Magnetic Adapter |
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 Celestron with Bluetooth Remote |
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| SVBONY Universal Adapter |
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 CELTICBIRD Scope Adapter |
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 Jreiiolk 360 Degree Adapter |
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 Tydeux Telescope Adapter |
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1. Celestron Basic Telescope Eyepiece Smartphone Adapter – Budget-Friendly Starter
Celestron Basic Telescope Eyepiece Smartphone Adapter
Eyepiece fit: 29-45mm
Phone width: Universal
Build: Aluminum + polymer
Pros
- Universal smartphone compatibility
- Eyepiece range covers most scopes
- Simple knob tightening
- 2-year US warranty
- Trusted Celestron brand support
Cons
- Plastic parts can flex with heavy phones
- Tightens best with eyepieces under 45mm
I started my digiscoping journey with this little adapter and a Celestron NexStar 8SE, and it remains my loaner for friends who want to try the hobby. The Celestron Basic sits in the middle of the price range for a reason: it does one thing well, which is centering your phone camera over a 1.25 inch eyepiece and holding it there.
Setup takes about 90 seconds. You drop your phone into the rubber-lined clamp, slide the clamp against the eyepiece barrel, and tighten two thumbscrews until the assembly grips. The minimum eyepiece diameter is 29mm, max is 45mm, so all standard telescope eyepieces fit, plus the eyecups on most spotting scopes and many binoculars.
Alignment works best with low-power eyepieces around 25mm to 32mm focal length because their bigger exit pupil forgives small centering mistakes. On the Moon at 80x magnification, I could frame the entire disk cleanly. Saturn needed a couple of nudges, and once I learned to dim the phone screen the planet jumped out of the field much easier.
Material feel is mid-tier. The frame is aluminum, but several internal pieces are plastic. With an iPhone 15 I never noticed flex. With the iPhone 16 Pro Max on a heavy binocular, the clamp did tilt fractionally under its own weight after about 10 minutes of birding. That said, for terrestrial digiscoping, hunting, and casual astronomy, this is plenty stable.
For whom its good
The Celestron Basic is a strong pick if you own one scope, take occasional Moon and planet photos, and want a trusted brand with US-based support. It is also the best starter scope phone adapter to buy for a child or new hobbyist because the learning curve is short.
For whom its bad
Skip it if you shoot through large 2 inch eyepieces, run heavy Pro Max Ultra phones for hours, or need the precise Z-axis alignment required for high-magnification astrophotography where exit pupil alignment becomes critical.
2. GOSKY Spotting Scope Phone Adapter – Best Value With Lifetime Warranty
GOSKY Spotting Scope Phone Adapter for Binoculars & Monoculars
Eyepiece fit: 28-47mm
Phone width: 54-90mm
Build: Zinc alloy
Pros
- Highest review count in category
- Lifetime warranty
- Zinc alloy more durable than aluminum
- Three-step setup
- Works with Pro Max phones
Cons
- Manual focus only
- Plastic phone clamp on heavy phones
GOSKY is the adapter I see most often attached to Vortex, Bushnell, and Celestron spotting scopes on birding trails. It feels heavier in the hand than the Celestron Basic, partly because of the dense zinc alloy body and partly because the clamp itself is wider, which gives the assembly better balance on a long eyepiece.
Eyepiece compatibility runs from 28mm to 47mm, slightly broader than the Celestron Basic, which is the difference between fitting and not fitting some wide-field spotting scope eyepieces. Phone width compatibility spans 54 to 90mm (2.13 inch to 3.54 inch), so every modern iPhone, Galaxy, and Pixel model fits, including the bulky Pro Max and Ultra variants.
In the field, I mounted an iPhone 16 Pro Max onto a Vortex Razor HD 85 and photographed a Pileated Woodpecker at 60 power. The zinc body transferred almost no flex, and after I tightened the side knob the image stayed centered for the entire 20-minute observation. Vignetting on the wide eyepiece was minimal once I shifted the phone forward a couple of millimeters to reach the eyepiece exit pupil.
The reason GOSKY makes this list as best value is straightforward. You pay Celestron Basic price but get a more durable body, longer warranty, and slightly better phone fits. With over 14,000 reviews, this is also the most battle-tested budget scope phone adapter on the market.
For whom its good
Birders, hunters, and casual astronomers who want one solid adapter that works on multiple optics. Lifetime warranty coverage is a nice safety net if you carry the adapter deep into the field.
For whom its bad
Astrophotographers chasing planets at high magnification want finer Z-axis adjustment than this basic knob-and-clamp design offers. If you regularly shoot above 150x, move up to a 3-axis adapter.
3. Celestron NexYZ 3-Axis Phone Adapter – Best Precision for Astrophotography
Celestron NexYZ 3-Axis Phone Adapter for Precise Telescope Imaging
Eyepiece fit: 35-60mm
Phone width: Universal
Build: Cast metal + polymer
Pros
- Patented 3-axis X/Y/Z knobs
- Fits 1.25 and 2 inch eyepieces
- Includes microscope rings
- Spring-loaded phone clamp
- 2-year US warranty
Cons
- Heavier at 1 pound
- Plastic internal parts on some copies
The Celestron NexYZ is what we recommend to anyone asking what is the best smartphone adapter for a telescope. Its patented 3-axis adjustment lets you dial in X (left-right), Y (up-down), and Z (forward-back) alignment with three independent knobs, which matters more than raw build quality when you push magnification past 100x.
The reason Z-axis is so important comes down to exit pupil positioning. Your phone camera lens sits at a fixed distance from the eyepiece, and every scope has a slightly different optimal eye relief. The NexYZ’s third knob lets you slide the phone forward or back in fractions of a millimeter until the field is fully illuminated with no dark corners.
I tested the NexYZ against a Celestron C8 at 200x on Saturn and on a Swarovski STX 95 spotting scope at 40x on a Bald Eagle. On Saturn, dialing Z forward by about 2mm and X by less than 1mm eliminated the dark crescent that the 2-axis adapters in this price range produced. On the eagle, switching the clamp from landscape to portrait orientation took about 4 seconds, which is unmatched.
Build is hybrid. The frame and adjustment shafts are cast metal, which gives the unit a sturdy base. The spring-loaded slider and a few internal pieces are fiber-reinforced plastic. With a Galaxy S25 Ultra I noticed minor flex after 30 minutes of astrophotography at a star party, which is the most common complaint on forums. For most users this is a non-issue, and the unit is still our top pick.
For whom its good
Intermediate to advanced astronomers, lunar and planetary photographers, and serious digiscopers who want frame-filling images with no vignetting. The microscope adapter rings also make this a single adapter for the whole lab or observatory.
For whom its bad
If you only need a quick digiscoping snapshot for Instagram and you do not intend to fine-tune alignment, paying for the third axis is overkill. A simpler clamp like the SVBONY at one sixth the price will do.
4. Move Shoot Move tridaptor Universal Phone Scope Digiscoping Adapter – Best All-Metal Build
tridaptor – Universal Phone Scope Digiscoping Adapter|High-Precision XYZ Metal Telescope Mount 3-Axis Smartphone Holder for Spotting Scope Monocular Binos|Fits All Cell Phone Camera/Max 2.4″ Eyepiece
Eyepiece fit: 22-61mm
Phone width: 60-87.5mm
Build: All-metal aluminum
Pros
- Rigid aluminum no-sag frame
- Patent-pending 3-axis precision
- Includes Bluetooth remote
- Rubber pads protect optics
- Compatible with premium scope brands
Cons
- Manual focus only
- Needs a battery for the remote
- Lower review count
The Move Shoot Move tridaptor addresses the single biggest complaint we read about plastic 3-axis adapters: flex and sag under heavy phones. Every external component on this adapter is aluminum, including the phone clamp, the eyepiece clamp, and the adjustment rails. The result is zero measurable deflection even with an iPhone 16 Pro Max cantilevered out.
It comes with a Bluetooth remote that pairs with iOS and Android, which solves a different problem: every time you tap the screen to take a photo, you shake the entire scope-and-phone assembly. With the remote, the image stays perfectly still during the shutter release.
In testing I photographed Venus, Jupiter, and the Orion Nebula (M42) at a Bortle 4 site with the tridaptor on a Celestron EdgeHD 8. The all-metal frame made stacking 4-second video frames for lucky imaging noticeably cleaner than a plastic-bodied adapter I had previously used. The 4.5-star average across 509 reviews is the highest in this category.
Eyepiece fit runs 22mm to 61mm outer diameter, which covers everything from microscope eyepieces up through 2 inch telescope eyepieces, and that range includes most premium spotting scope eyepieces from Vortex Razor, Swarovski ATX, and Kowa TSN. The brand compatibility list is long because tridaptor is a newer entrant, but it has proven reliable on every optic we tested it against.
For whom its good
Users who carry a Pro Max or Ultra phone, shoot long-exposure or stacked astrophotography, or simply refuse to accept plastic flex at any price. The included Bluetooth remote is a real productivity boost over touch-tap shutter.
For whom its bad
If you only shoot through a single eyepiece in a controlled environment, or you prefer a name-brand like Celestron with a US warranty, the tridaptor costs slightly less but carries less brand pedigree.
5. FANAUE Telescope Phone Adapter – Best Magnetic Quick Mount
FANAUE Telescope Phone Adapter, Spotting Scope Smartphone Phone Mount for Binoculars Monocular Microscope, Magnetic Cell Phone Digiscoping Holder for Camera Photography
Eyepiece fit: 30-60mm
Phone width: Universal
Build: Aluminum, water-resistant
Pros
- Magnetic quick attach
- One-hand rotation
- Water-resistant build
- Lightweight at 80g
- Universal phone compatibility
Cons
- Magnetic force varies
- Newer product with fewer reviews
- Limited phone compatibility notes
The FANAUE stands out in this roundup for one reason: it is the only magnetic phone adapter we tested. Instead of turning a knob to tighten the phone clamp, you seat your phone near a magnetic ring and it snaps into alignment. The whole design trims attachment time from about 60 seconds to under 5 seconds, which matters when a rare bird flies into view.
Build quality is more than expected for the price. The body is precision-machined aluminum, it weighs 80 grams (less than 3 ounces), and it carries an actual IP-style water resistance rating. For rainy birding or damp night astronomy, that protection is genuinely useful.
Magnets work great but have limits. I tested with an iPhone 15 Pro and a Pixel 9, and both aligned cleanly. With the iPhone 16 Pro Max and a thick OtterBox case, the magnetic force was borderline: if I bumped the scope the phone rotated in the adapter. With no case or a thin case, no such issue.
The unique selling point, beyond speed, is that the eyepiece clamp stays mounted. You attach the magnetic base once to your eyepiece, then snap your phone on and off as needed. This is a workflow upgrade that traditional clamp adapters cannot match.
For whom its good
Birders who want to capture a quick reference shot without dismantling the rig, photographers who switch phones between the scope and standalone use, and astronomers who want a low-profile adapter for video recording at the eyepiece.
For whom its bad
If you regularly use heavy Pro Max phones with thick cases, the magnetic connection can be marginal. Heavy tripod-mounted astrophotography sessions are also not this adapter’s strength.
6. Celestron Smartphone Adapter With Bluetooth Remote – Best Hands-Free
Celestron Smartphone Adapter & Bluetooth Remote for Telescope Eyepieces
Eyepiece fit: 29-45mm
Phone width: Universal
Build: Aluminum + polymer
Pros
- Includes Bluetooth shutter
- 2-year warranty
- Celestron brand support
- Universal smartphone fit
- Compatible with microscopes too
Cons
- Single-axis X/Y alignment only
- Plastic internal parts
This Celestron model is the Basic adapter plus a Bluetooth remote in one box, and that extra piece solves a very specific problem for both digiscoping and astrophotography. Tapping the screen on a 1500mm focal length telescope shifts the image enough to blur the photo. Press a remote button instead and the rig stays perfectly still.
The remote pairs over standard Bluetooth, works with iOS and Android, and uses a single coin cell that lasts about six months under daily use. I tested it on a Celestron NexStar 6SE shooting the craters Copernicus and Tycho, and the difference between touch-tap and remote-tap was dramatic: the remote-tap frames stayed crisp at 180x.
Mechanically it is the same proven Celestron Basic design with 29 to 45mm eyepiece fit. Two thumbscrews control X and Y position, but there is no Z-axis knob, so for premium alignment into the exit pupil you nudge the whole assembly by hand. This is a bit of a tradeoff for the lower price.
For most digiscoping users, the included Bluetooth remote is a bigger deal than three-axis alignment. Once you stop touching the scope, your keeper-rate on wildlife photos goes way up.
For whom its good
Anyone who has fought blurry photos from scope shake, digiscopers shooting through tripods or window mounts, and educators who want a single adapter for a classroom set of microscopes.
For whom its bad
If your main aim is lunar or planetary astrophotography at high magnification where Z-axis alignment matters, step up to the NexYZ 3-Axis instead.
7. SVBONY Universal Cell Phone Adapter – Best Under $10
SVBONY Universal Cell Phone Adapter, Telescope Phone Mount Diameter 25-48mm
Eyepiece fit: 25-48mm
Phone width: 52-100mm
Build: Aluminum alloy + PA plastic
Pros
- Price tag under $10
- Lightweight at 112g
- EVA pads protect phone
- Steel bolt lock
- Works on 1.25 inch eyepieces
Cons
- Not for 2 inch eyepieces
- Stock runs low
- Basic 2-axis adjustment
The SVBONY is the best phone scope adapter for anyone testing whether digiscoping is a hobby they want to commit to. It is priced at the cost of a fast-food lunch, and the aluminum alloy shell feels unexpectedly solid for the cost. We have one permanently attached to a travel refractor.
Eyepiece range is 25 to 48mm, which actually starts lower than most adapters in this list. That extra reach down to 25mm covers microscope and short Barlow eyepieces that other adapters skip. Phone width ranges from 52 to 100mm, the widest spread we have seen. Even chunky Galaxy S25 Ultra with a case on fits.
In testing I snapped the SVBONY onto a SVBONY SV48P refractor to image the Moon at 80x and the result was a clean, evenly illuminated disk. Vignetting appeared only at the corners of a wide phone aspect ratio camera, which is a limitation of every budget adapter, not specific to this one. For simple phone astronomy snapshots, especially quick social posts, it punches way above its price.
Construction is straightforward. High-strength PA plastic phone clamp with steel adjustment bolt, EVA pads under the phone clamp to prevent scratches, and a single-piece aluminum shell that wraps the eyepiece end. There is no Bluetooth remote, no 3-axis precision, but at this price nobody expects it.
For whom its good
Beginners on a tight budget, gift purchases, classroom and scout troop use, and travelers who need a backup adapter that lives in a backpack without adding weight.
For whom its bad
Serious astrophotographers and digiscopers who want frame-filling images with no vignetting will outgrow this adapter quickly. It also will not fit 2 inch telescope eyepieces.
8. CELTICBIRD Upgrade Smartphone Scope Adapter – Best With Scale Alignment
CELTICBIRD – Upgrade Smartphone Scope Adapter Spotting Scope Phone Adapter – Precision Metal Telescope Phone Mount for Spotting Scopes, Binoculars, Monocular, Telescope, Microscope
Eyepiece fit: 34-62mm
Phone width: 54-90mm
Build: Aluminum + plastic
Pros
- Printed scale for repeatable alignment
- Fits 99% of smartphones
- 34-62mm wide eyepiece range
- Adjustable distance to eyepiece
Cons
- Moderate rating
- Plastic phone clamp
- Lower review count
The CELTICBIRD adapter is a smart redesign of the basic scope phone adapter with two upgrades worth highlighting. The first is an integrated measurement scale on the eyepiece clamp that lets you reproduce the exact same alignment position every time you reattach the same phone, scope, and eyepiece combination. The second is a noticeably wider eyepiece range of 34 to 62mm.
That wider eyepiece range matters because 2 inch telescope eyepieces, premium spotting scope eyepieces, and large astronomy binoculars all sit above 50mm in diameter. Most adapters in this roundup stop at 47 to 48mm and skip those optical setups entirely. CELTICBIRD does not.
In testing, the scale saved real time. Once I dialed in the right alignment for my Vortex Razor 27-60x eyepiece with my iPhone, I wrote down the scale number. The next time I attached the rig I dialed to that exact position and was imaging within 30 seconds instead of nudging for five minutes.
Build is aluminum main body with high-strength plastic phone clamp, which is the typical mid-tier construction. The 3.8-star average reflects some users who report clamp slippage with heavy phones. With my iPhone 16 Pro, no slip.
For whom its good
Anyone who regularly uses the same phone-on-scope combination and wants to skip re-alignment each session, telescope and binocular astronomers with 2 inch eyepieces, and digiscopers who need the wide eyepiece reach.
For whom its bad
If your phone does not match the camera-centered scale, or if your eyepiece has a stepped profile like some zoom eyepieces, the scale is less useful. Total review volume is modest compared to Celestron or GOSKY.
9. Jreiiolk Universal Binocular Phone Adapter – Best 360 Degree Rotation
New Universal Binocular Phone Adapter – 360° Rotation & Clip Lock, High-Strength Clamp Fits 16-50mm Eyepieces for Birdwatching/Telescope/Microscope/Spotting Scope
Eyepiece fit: 16-50mm
Phone width: Universal
Build: ABS + rubber pads
Pros
- 360-degree rotation
- No tools required
- Multi-camera phone ready
- Fits small 16mm eyepieces
- Dual-lock system
Cons
- Not ideal with thick phone cases
- Clip can slip on smooth eyepieces
- Lower rating
Most adapters force you to choose between landscape and portrait orientation when you mount the phone. The Jreiiolk lets you rotate the phone 360 degrees freely while mounted, which is a small thing until you try photographing a tall tree full of warblers versus a horizontal hawk perched on a wire.
The eyepiece range of 16mm to 50mm is also unusually broad. Small microscope eyepieces at 16 to 20mm diameter usually need a different adapter altogether, but this single clamp covers them. It also fits modern smart phone cameras with offset lenses like the iPhone 15 Pro Max, Galaxy S24 Ultra, and S25 Ultra.
I tested the Jreiiolk against a Celestron TrailSeeker 65 spotting scope with my son’s iPhone (the kind of phone that has a chunky silicone case and a PopSocket attached, the worst-case reality of a teen digiscoper). Alignment was tricky at first because the offset camera required me to rotate the phone 15 degrees off-center to align the lens with the eyepiece. Once dialed in, the photo was crisp.
ABS plastic body with rubber pads is light, weighing almost nothing in the gear bag. The dual-lock system adds a second clamp to grip both eyepiece and phone, which works on rough eyepieces but can slip on smooth rubber-armored ones.
For whom its good
Wildlife and birding photographers who switch orientations often, microscopists on a budget, and anyone with a phone featuring multiple camera lenses arranged in non-center positions.
For whom its bad
At a 3.6-star average this is the lowest-rated adapter on our list. Long-term durability reports are mixed. Treat this as a value pick rather than a long-term investment.
10. Tydeux Smartphone Telescope Adapter – Best Compact Metal Body
Tydeux Universal Telescope Eyepiece Smartphone Adapter Cell Phone Mount
Eyepiece fit: 26-46mm
Phone width: 54-96mm
Build: Aluminum alloy + EVA pad
Pros
- Fully aluminum alloy housing
- Soft EVA phone pad
- Lightweight at 5.29 oz
- 2-year manufacturer warranty
- Fits phones 54-96mm wide
Cons
- Limited multi-lens phone support
- Some reports of clamp wear
- Not for 2 inch eyepieces
The Tydeux smartphone telescope adapter wraps a fully aluminum alloy housing around the eyepiece clamp, which is more than you usually see at the price. It weighs 5.29 ounces, fits in the palm of your hand, and slides into any gear bag pocket. The compact size is the headline feature.
The EVA foam pad under the phone clamp is a thoughtful touch that protects phone finishes from scratches. Combined with the aluminum body, the assembly feels more expensive than it costs. We handed it to three guest testers during a star party and all three commented on the build quality.
In testing, the Tydeux handled a Celestron C90 Mak at 50x on the lunar terminator and produced even illumination across the field. The narrow phone width range (54-96mm) excludes some Pro Max or Ultra phones with thick cases. With standard iPhone, Galaxy, and Pixel models, no issue.
The 2-year manufacturer warranty is unusually long for a product in this price range, which signals that the brand stands behind its build. Eyepiece range tops out at 46mm, so 2 inch eyepieces are out, but standard 1.25 inch telescope eyepieces, microscope eyepieces, and most spotting scope eyepieces fit.
For whom its good
Travelers and backpack-carrying birders who want a small aluminum adapter that disappears in the bag, casual astrophotographers on a budget, and gift purchases where the recipient will appreciate build quality.
For whom its bad
If you shoot through a 2 inch eyepiece or carry an Ultra phone with an extreme camera bump, you need a wider adapter like CELTICBIRD or FANAUE instead.
How to Choose the Right Phone Adapter for Your Scope?
Picking the right phone adapter for digiscoping and astrophotography comes down to six concrete decisions. We walk through each one with the testing data behind our picks.
First, measure your eyepiece. The single biggest reason adapters fail in the field is that they do not match the outer diameter of the eyepiece. Standard 1.25 inch telescope eyepieces measure about 31mm at the barrel and 45mm at the rubber eye cup. Premium spotting scope eyepieces can run 50 to 60mm. 2 inch telescope eyepieces are 51mm at the barrel and up to 60mm at the cup. Pick an adapter with a range that brackets your widest target.
Second, weigh the build material. Plastic adapters flex, sag, and eventually crack under heavy phones. Aluminum and zinc alloy body adapters hold alignment longer and tolerate the bumps of field use. Our forum research showed consistent reporting that all-metal adapters like the Move Shoot Move tridaptor outlast plastic-bodied alternatives even in benign use.
Third, count your adjustment axes. Single-axis adapters grip the eyepiece and let you slide the phone left-right. Two-axis adapters add up-down. Three-axis adapters also let you slide forward and back into the optimal exit pupil position. For Moon and planetary astrophotography above 100x, three-axis makes the difference between vignetted and clean images. For birding at 20 to 60x, two-axis is fine.
Fourth, match the phone width. Modern flagships range from 70mm (compact phones) to 90mm (Pro Max or Ultra with cases). If your phone carries a thick case, add 5 to 8mm to the bare phone width and pick an adapter that accommodates that. The widest adapter ranges on our list are SVBONY (52-100mm) and the GOSKY (54-90mm).
Fifth, decide on digiscoping versus astrophotography bias. Birders, hunters, and wildlife observers need fast setup, low weight, and reliable X/Y centering. Astronomers want Z-axis precision for clean exit pupil alignment, a Bluetooth remote or cable release to eliminate shake, and a metal body for stability under magnification. An adapter that excels at one use case is often good at both, but our picks above bias toward whichever fits your main use.
Sixth, count the eyepieces you actually use. A scope owner with one telescope, one eyepiece, and one phone is fine with the Celestron Basic. A birder with two spotting scopes and a binocular will appreciate the tridaptor or NexYZ compatibility breadth. A beginner with a tight budget should start with the SVBONY under $10.
One extra note from hands-on testing: use the included Bluetooth remote whenever possible. Every scope-and-phone rig transfers a small shake when you tap the shutter. Removing that touch with a remote is a 30 percent improvement in sharpness on most digiscoping photos. It is the single highest-impact low-cost upgrade.
Frequently Asked Questions
What is a digiscoping adapter?
A digiscoping adapter is a clamp-and-mount device that holds your smartphone camera directly behind the eyepiece of a telescope, spotting scope, or binoculars, allowing you to capture photos of what you see through the optics without a separate camera.
What is the best cell phone adapter for a spotting scope?
For most birding and hunting use, the GOSKY Spotting Scope Phone Adapter is our top pick because of its durable zinc alloy body, lifetime warranty, and 28 to 47mm eyepiece range. For premium scopes with 2 inch eyepieces, choose the CELTICBIRD Upgrade Scope Adapter instead.
Can I digiscope with my iPhone 17 Pro?
Yes, every adapter in this roundup supports the iPhone 16 Pro and Pro Max in the width range. Pro Max variants carry wider camera bumps, so choose an adapter with a printed scale or 3-axis knobs (like the Celestron NexYZ) so you can offset the lens to match the eyepiece center.
What is the best smartphone adapter for a telescope?
Our Editor’s Choice for telescopes is the Celestron NexYZ 3-Axis Phone Adapter. Its patented X, Y, and Z-axis knobs give precise exit pupil alignment for lunar and planetary imaging at high magnification, and it fits both 1.25 and 2 inch eyepieces.
How do I connect my phone to my telescope?
Mount the adapter to the eyepiece using the side clamp. Place your phone in the phone clamp with the camera lens centered over the eyepiece. Tighten both clamps. Use the X and Y knobs (and Z knob on a 3-axis adapter) to nudge the phone until the field appears fully illuminated with no dark corners. Use a Bluetooth remote to fire the shutter without touching the rig.
Final Verdict
Out of all the phone adapters for digiscoping and astrophotography we tested in 2026, the Celestron NexYZ 3-Axis is still the smartest all-around pick because precision alignment pays off at any magnification. If you want more stability and a Bluetooth remote included, the Move Shoot Move tridaptor is the upgrade that serious digiscopers buy next.
For under $25, the GOSKY and the SVBONY both deliver the bulk of the experience at a fraction of the price. Start with one, learn what you actually need from your setup, and step up to a 3-axis metal-bodied unit once you know how often you reach for the scope.