In Stock Opticron Universal Smartphone Mount USM-2
The Opticron Universal Smartphone Mount USM‑2 makes it easy to turn your binoculars, spotting scope, or monocular into a digiscoping camera rig so you can capture photos and video of wildlife, birds, landscapes, and memorable moments right through your optics, designed to securely clamp most smartphones in place, the USM‑2 aligns your phone’s camera with your eyepiece for sharp images without hunting for the right position, the adjustable mount fits a wide range of phone sizes and optic eyepieces without slipping, and the lightweight, durable construction makes this an ideal accessory for travellers, outdoor enthusiasts, nature photographers, and anyone who wants to share what they see through their optics.
-Nathan (Technical Advisor)
The Opticron Universal Smartphone Mount USM-2 is a practical and reliable solution for anyone looking to capture high-quality photos or videos through their spotting scope or binoculars. Designed to offer both simplicity and stability, it allows you to position your smartphone securely over an eyepiece, giving you an effortless way to document wildlife, scenery or sporting events with greater detail and clarity.
Built with a 4-clamp adjustable mounting plate, the USM-2 holds your phone firmly in place and is compatible with devices up to 6.5 inches in screen size. On the eyepiece side, a self-centring 3-pin adjustable clamp ensures a precise and stable fit over viewing eyepieces ranging from 31–55mm in diameter. This intuitive setup makes alignment quick and straightforward, even when switching between optics.
Despite its robust construction, the mount remains lightweight at just 160g, combining aluminium alloy, plastic and rubber for durability without unnecessary bulk. Finished in black for a sleek, unobtrusive appearance, the USM-2 measures 150×90×55mm, making it compact enough to accompany you on any outdoor adventure. It is also waterproof, adding peace of mind in unpredictable weather.
The USM-2 comes supplied with foam pads for additional grip and protection, and it is backed by a two-year guarantee, underscoring Opticron’s commitment to quality.
- Colour Black
- Waterproof Yes
- Length (mm) 150
- Width (mm) 90
- Depth (mm) 55
- Dimensions LxWxD (mm) 150x90x55
- Dimensions LxWxD (inches) 5.9x3.5x2.2
- Weight (g) 160
- Weight (oz) 5.6
- Weight (lb) 0.4
- Body Material Aluminium Alloy, Plastic, Rubber
- Max. Internal Dia. (mm) N/A
- Max. Internal Dia. (inches) N/A
- Max. External Depth (mm) N/A
- Serial Number Location N/A
- Model Code Location N/A
- Country of Origin Taiwan
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4-clamp adjustable mounting system that securely holds your smartphone in place
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Self-centring 3-pin eyepiece clamp for stable, accurate alignment over your optics
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Quick and easy setup, ideal for both beginners and experienced digiscopers
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Smooth, flexible adjustment for fast positioning when switching devices or eyepieces
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Durable construction designed to withstand regular outdoor use
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Sleek black finish for a professional, unobtrusive appearance
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Lightweight and travel-friendly, making it easy to carry on field trips
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Supplied foam pads to enhance grip, protect equipment and reduce vibration
- Opticron Universal Smartphone Mount USM-2
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What is the Universal Smartphone Mount USM‑2?
It’s a smartphone adapter that lets you attach your phone to binoculars, a spotting scope, or a monocular to take photos and video through the optics -
Which phones does it fit?
It fits most modern smartphones by adjusting to different phone widths and camera positions -
Will it work with my optics?
Yes it’s designed to fit a wide range of eyepiece sizes on binoculars, monoculars, or spotting scopes -
Is it easy to set up?
Yes it clamps your phone securely and aligns it with your optics without complicated tools -
Does it hold the phone securely?
Yes it uses a secure grip and adjustable clamps to keep your phone steady while you capture images -
Can it be used for photos and video?
Yes you can use it to capture both photos and video through your optics -
Is the mount durable?
Yes it’s built with lightweight, durable materials suitable for field use -
Does it work with phone cases?
Yes it adjusts to accommodate phones with most protective cases -
Is this mount good for birdwatching photography?
Yes it’s ideal for birdwatchers, wildlife observers, and nature photographers who want to record what they see -
Who is this smartphone mount best for?
It’s perfect for outdoor enthusiasts, travellers, and anyone who wants to capture and share photos and video from their optics
- Opticron 2 year warranty
Delivery costs & estimated arrival
Find your country below for the delivery charge and how long your order should take to reach you. All orders ship with FedEx. Estimates are in working days and exclude weekends and public holidays.
| Country | Up to 2kg | 2kg – 30kg | Estimated delivery | ||
|---|---|---|---|---|---|
| Order under €350 | Order €350 & over | Order under €350 | Order €350 & over | ||
| Austria | €11.95 | €26.95 | €26.95 | €26.95 | 5-7 working days |
| Belgium | €8.95 | €14.95 | €14.95 | €14.95 | 4-6 working days |
| Bulgaria | €11.95 | €31.95 | €31.95 | €31.95 | 7-9 working days |
| Croatia | €11.95 | €31.95 | €31.95 | €31.95 | 6-8 working days |
| Cyprus | €14.95 | €89.95 | €89.95 | €89.95 | Contact us |
| Czechia | €10.95 | €21.95 | €21.95 | €21.95 | 5-7 working days |
| Denmark | €10.95 | €21.95 | €21.95 | €21.95 | 4-6 working days |
| Estonia | €11.95 | €31.95 | €31.95 | €31.95 | 6-8 working days |
| Finland | €11.95 | €26.95 | €26.95 | €26.95 | 5-7 working days |
| France | €10.95 | €21.95 | €21.95 | €21.95 | 4-6 working days |
| Germany | €8.95 | €14.95 | €14.95 | €14.95 | 5-7 working days |
| Greece | €11.95 | €31.95 | €31.95 | €31.95 | 8-10 working days |
| Hungary | €11.95 | €31.95 | €31.95 | €31.95 | 5-7 working days |
| Ireland | €6.95 | €6.95 | €8.95 | €8.95 | 2-4 working days |
| Italy | €10.95 | €21.95 | €21.95 | €21.95 | 5-7 working days |
| Latvia | €11.95 | €31.95 | €31.95 | €31.95 | 6-8 working days |
| Lithuania | €11.95 | €31.95 | €31.95 | €31.95 | 6-8 working days |
| Luxembourg | €11.95 | €31.95 | €31.95 | €31.95 | 5-7 working days |
| Malta | €14.95 | €89.95 | €89.95 | €89.95 | Contact us |
| Monaco | €10.95 | €21.95 | €21.95 | €21.95 | 4-6 working days |
| Poland | €10.95 | €21.95 | €21.95 | €21.95 | 5-7 working days |
| Romania | €11.95 | €31.95 | €31.95 | €31.95 | 6-8 working days |
| Slovakia | €11.95 | €31.95 | €31.95 | €31.95 | 5-7 working days |
| Slovenia | €11.95 | €31.95 | €31.95 | €31.95 | 6-8 working days |
| Spain | €11.95 | €26.95 | €26.95 | €26.95 | 5-7 working days |
| Sweden | €11.95 | €26.95 | €26.95 | €26.95 | 5-7 working days |
Returns & withdrawal
Which option you use depends on why you are sending the item back.
Changed your mind?
You have 14 days from receiving your order to withdraw from your purchase. Use our Withdrawal from Contract form to tell us. It is the quickest way, and we will then email you a free returns label.
If you would rather post the item back yourself to our returns address in Ireland, you pay the postage. Full details are on our Returns page.
Withdrawal from ContractFaulty, damaged or wrong item?
If your item arrived faulty, damaged or not what you ordered, please follow the steps on our Returns page. We cover the cost of returning these items.
Full details of all our return options are on that page.
Returns pageDelivery prices are shown in euros and confirmed at checkout.

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