Are Inbuilt Autofocus Motors Really Necessary When Buying DSLRs? Which Are Better: Inbuilt AF Motors or AF Lenses?
Introduction: When it comes to deciding between inbuilt autofocus (AF) motors and external AF lenses, photographers often face a dilemma. This article explores the necessity and benefits of inbuilt AF motors and traditional AF lenses, providing insights from both technical and practical perspectives.
Understanding Inbuilt Autofocus Motors
When considering whether inbuilt AF motors are necessary, it's important to understand the context of lens usage. Inbuilt AF motors are primarily required when using older legacy lenses that do not have their own AF mechanisms. Modern lenses, both from major camera brands like Nikon and Canon, are designed to work seamlessly with inbuilt AF systems, offering faster and more efficient autofocus performance.
For instance, Nikon offers a range of camera bodies with and without inbuilt AF motors. The cameras equipped with inbuilt AF motors are generally more expensive but offer enhanced functionality for modern lenses. These systems are designed to work harmoniously, providing a silent and smooth autofocus experience. This is why most manufacturers, including Nikon, have shifted towards in-camera AF motor technology, prioritizing newer, more efficient solutions.
Choosing Between Inbuilt AF Motors and AF Lenses
In many cases, the decision between a camera with inbuilt AF motors and an AF lens comes down to practical considerations. If you're planning to use both modern and older lenses, a camera with inbuilt AF motors offers flexibility. On the other hand, if budget is a significant factor, opting for a camera without inbuilt AF motors and a lens with its own AF mechanism can be a viable option. However, it's crucial to consider that older lenses may not perform as well when paired with a camera that lacks inbuilt AF motors.
Consider this: If the autofocus works properly, the choice of camera body or lens with inbuilt AF motor becomes less critical. Modern in-lens AF motors are generally faster and more precise, and many cameras with inbuilt AF motors are designed to work well with a wide range of lenses.
When Are Inbuilt Autofocus Motors Necessary?
Deciding if inbuilt AF motors are necessary depends on the specific camera model and the types of lenses you intend to use. If you're working extensively with legacy lenses or lenses from different manufacturers, an inbuilt AF motor can be a worthwhile investment. However, if you primarily use modern lenses, the need for an inbuilt AF motor diminishes significantly. Ultimately, the inbuilt AF motor can be considered a luxury feature, enhancing convenience and performance but not a strict requirement for basic use.
Evaluating Lens Systems with Built-in AF Motors
When it comes to choosing between lenses with built-in AF motors and external AF lenses, it's essential to consider the lens as a whole. AF motor systems are not the only factor determining a lens's performance. Features such as image quality, lens construction, and availability in your desired mount are equally important. Additionally, the system you choose—AF motor in the camera or lens—primarily benefits photographers who already have a collection of lenses and want to keep using them. For those starting out, the inbuilt AF motor in the lens system is a reasonable choice, as advancements in technology suggest that new lenses will likely include built-in AF motors in the future.
As an example, the Nikon AF-S series lenses are renowned for their excellent build-in AF motors, offering high performance and reliability. Canon's system, particularly with their RF lenses, also prioritizes inbuilt AF motors, ensuring seamless integration with the camera body. However, for budget-conscious photographers, external AF lenses like the series from Tamron or Sigma may be a more affordable option, provided they meet your specific needs.
Conclusion and Recommendations
The necessity of inbuilt AF motors in DSLRs is a matter of personal preference and specific use cases. For the most advanced features and convenience, inbuilt AF motors offer clear advantages. However, for those looking to balance cost and performance, the choice of AF lenses can still deliver satisfactory results, especially if paired with a modern camera body.
Whether you choose a camera with inbuilt AF motors or a lens with its own AF system, the key is to weigh your priorities and budget. As technology continues to evolve, the importance of inbuilt AF motors is likely to grow, making it a favorable choice for the majority of photographers. Good luck in your future purchasing decisions!