Apple is said to be considering a variable aperture and a teleconverter for telephoto shooting for the iPhone 18 Pro camera.

On Jan. 28, local time, IT outlet 9to5Mac reported that Apple is seeking to raise smartphone camera performance to DSLR level through the review. Attention is focused on whether this could offer users a more professional and flexible photography experience.

Leaked account Smart Pikachu said the iPhone 18 Pro variable-aperture camera is currently at the engineering-sample stage and that Apple is considering introducing a teleconverter for telephoto shooting.

A teleconverter is an optical device commonly used in DSLR cameras. It increases focal length to improve medium- and long-distance shooting quality. When combined with a variable aperture, it can compensate for light loss and adjust exposure and depth of field. This could allow users to take better photos in low-light environments or when they want to emphasize depth differences between a subject and the background.

Rumours about a variable-aperture feature began after supply-chain analyst Ming-Chi Kuo mentioned in December last year that it was set to be applied to the main cameras of the iPhone 18 Pro and Pro Max. Multiple supply-chain reports later confirmed that Apple is in related discussions with component suppliers and is checking optical performance, durability and reliability at the engineering-sample stage. At the same time, Apple is testing whether the new camera system can meet existing quality standards in mass production, and is leaving open the possibility that some features could be excluded from the final mass-production model.

The overall design of the iPhone 18 Pro is said to be largely finalised, and Apple is currently focused on testing key functions such as the camera module. At the engineering-sample stage, it is closely verifying how much the combination of a teleconverter and a variable aperture can improve the real user experience, and whether shooting quality and production efficiency can be balanced. There is no guarantee that features tested at this stage will be applied to the mass-production model, and features could be excluded if quality degradation occurs. This is similar to a past case in which a variable aperture was not applied to the iPhone 17 Pro Max.

The verification process shows Apple’s effort to implement a DSLR-like photography experience on a smartphone. Depending on whether it adopts a variable aperture and a teleconverter, users could have a range of shooting options including exposure control, depth-of-field selection and telephoto performance. The engineering-sample validation is a preparation stage to enable satisfactory photography in real-world use, and related rumours need to be treated cautiously until an official announcement. Apple is expected to prioritise quality and user experience in its final decision.