400mm Pro Telephoto Lens (17mm mount)

The lens attaches to your phone's camera system and works with a wide range of smartphones. The T-Mount version is specifically designed for Fotorgear Retro Cases, which are available for iPhone and select Android flagship models. The universal clip version works with most smartphones on the market.

To be sure, check the product page for the complete compatibility list. If your phone's camera module is centered and not obstructed by an unusually thick case, the clip-on version should work without issues.

You can use both, but we strongly recommend using the Fotorgear app, which allows you to manually lock the telephoto lens.

The native camera may automatically switch to the main sensor in low-light conditions, which causes black edges or vignetting. The Fotorgear App locks your phone to the telephoto lens, ensuring the external lens works properly at all times.

It depends. The Retro Series lenses come with a universal lens clip that allows you to attach the lens directly to almost any phone, regardless of the case you're using. This provides maximum flexibility — you don't need to remove your everyday case just to shoot.

However, if you want the most stable and precisely aligned connection, the T-Mount system paired with a Fotorgear Retro Case is the better choice. The lens clicks directly into the case's built-in mount, eliminating any guesswork around alignment and providing a rock-solid foundation for shooting.

This lens is optically designed to mount on your phone's 1x main camera, utilizing the larger, higher-resolution main sensor to achieve lossless magnification through central cropping. Most external telephoto lenses mount on the telephoto sensor, which is limited by a smaller sensor size and lower resolution.

The 400mm Pro Telephoto provides an approximately 400mm equivalent focal length. It can capture performer expressions from the back of a concert venue and wildlife details from a distance without disturbing the subject. However, at extreme focal lengths, even slight hand movement is magnified significantly. For optimal results, use a tripod or stabilizer. For handheld shooting, the Fotorgear App's EIS stabilization mode effectively counteracts high-frequency hand tremors, turning handheld shots into tripod-smooth footage.