Rifle Scope Mount Camera Adapter with Extension Tube - Smartphone

In this review of the Rifle Scope Mount Camera Adapter with Extension Tube, the bottom line is clear: this accessory is for hunters, birders and amateur astrophotographers who want an affordable, rugged way to capture photos and video through riflescopes, spotting scopes, binoculars and telescopes. The single biggest reason to buy is its broad eyepiece and phone compatibility combined with a solid aluminum build and soft contact surfaces, which together let a user align and record images from their scope without scratching optics or a phone.

Key Features

• Wide eyepiece fit: The holder accepts eyepieces with an outer diameter of 33mm to 46mm so it works with many rifle scopes, telescopes, binoculars and monoculars.
• Phone compatibility: The clamp accommodates smartphones 60mm to 98mm wide, covering a large range of phones including older iPhone models and many modern devices.
• Extension tube: The included extension tube helps achieve accurate optical alignment for different eye relief and eyepiece shapes, reducing vignetting and easier framing.
• Durable construction: Machined aluminum with an anodized finish gives a lightweight but robust frame that resists corrosion and daily field use.
• Optics-safe fasteners: Supplied PA plastic M5x8 screws and soft contact pads protect eyepieces and phone surfaces from scratches while keeping the mount secure.
• Versatile eyepiece shapes: The adapter fits plain eyepieces, those with knobs or slight curves, and eyepieces with small rings or handles.

Who It's For

This adapter is aimed at outdoorsmen and women who already own a riflescope, spotting scope or binoculars and want to document observations without buying a dedicated digiscoping camera. It is also useful for teachers or hobbyists who need to share close-up views with students or friends using a smartphone camera.

It is not intended for professional photographic rigs that require precision mounts, repeatable indexing or DSLR integration; users needing exact calibration for scientific imaging should look for specialty adapters designed for camera bodies rather than phones.

Pros & Cons

Pros

• Wide compatibility with 33mm to 46mm eyepieces makes it useful across many optics.
• Phone clamp fits devices 60mm to 98mm wide so most phones will attach securely.
• Soft pads and plastic screws protect eyepiece and phone finishes while holding the mount firm.
• Aluminum construction with anodizing feels sturdy and resists wear in the field.

Cons

• Alignment can take a little patience on the first setup, especially with phones that have off-center cameras.
• No dedicated quick-release or indexing feature, so switching phones or optics is not as fast as higher-end adapters.

Specifications

Compatibility (eyepiece)	33mm - 46mm outer diameter
Compatibility (phone)	60mm - 98mm width
Materials	Anodized aluminum body, PA plastic screws, soft contact pads
Screws included	6 x M5x8 PA plastic screws
Included accessory	Extension tube for alignment
Suitable optics	Riflescopes, telescopes, binoculars, monoculars

Our Verdict

The Rifle Scope Mount Camera Adapter with Extension Tube is a practical, well-built option for anyone who wants to record scope views with a smartphone without risking scratched glass or phone damage. Its broad eyepiece and phone fit, protective contact points and aluminum construction make it good value for hunters and hobbyists who need an economical digiscoping solution rather than a pro-level camera mounting system.

Frequently Asked Questions

Will this fit my spotting scope eyepiece?
Yes, if the eyepiece outer diameter measures between 33mm and 46mm the adapter will clamp and work with telescopes, spotting scopes and binoculars.

Can it hold large modern phones with cases?
The phone clamp fits 60mm to 98mm width; thin cases may be fine but very bulky cases could exceed the maximum width.

Will the screws scratch my lens?
No, the product uses PA plastic M5x8 screws and soft pads to avoid scratching eyepiece surfaces and the phone.