The mount is the region where the body of the camera and the lens connect. If you need to capture an image, you’ll need to attach the lens to the camera’s lens mount. Then, they need to let the lens and the body recognise each other. There is a lot of confusion that comes while looking for Sony lenses for Sony cameras.

For Sony’s interchangeable lens cameras, there are two main types of lens mounts. These two are the Sony A-mount and the Sony E-mount lenses. So, below are the differences between both of these lenses.

Sony E-Mount Lenses: Overview And Features

The E-Mount models have a newly developed control algorithm for optimising the autofocus drive. It also increases the data transmission speed. Furthermore, these lenses work well with Sony’s AF-C and high-speed autofocus. The Mount Converter MC-11 doesn’t address these features.

Autofocus For All Lenses

Because of the control program, the lenses provide high-speed autofocus with a performance as good as a mirrorless camera lens. E-mount cameras also offer Sony’s Fast Hybrid AF and AF-C mode. It delivers the best performance.

In-Camera Image Stabilisation Compatibility

These lenses are compatible with in-camera image stabilisation. The camera senses the lens’s focal length and stabilises the image performance automatically.

In-Camera Aberration Correction Compatibility

The lenses are also compatible with in-camera aberration correction. It modifies various things like peripheral illusions, distortions, and chromatic aberrations. This function improves the image quality by matching the corrections to the optical characteristics of the lens.

Native Mount

The native mount provides a more rigid and stable feel. It has a unique surface treatment for enhancing strength. Also, the brass bayonet mount offers an exact fit with the best durability. The mount connection area has rubber sealing for dustproof and splashproof construction.

Sony A-Mount Lenses: Overview And Features

These lenses are designed for Sony DSLR cameras. For example, the A99, the A99 II, and so on. For those who use the Sony E-Mount Mirrorless Cameras, these lenses will work by using adapters like the Sony LA-EA4.

Some A-mount lenses need a geared drive focus motor. Adapters like the Sony LA-EA4 have an in-built geared drive focus motor for this purpose. Versions like the Sony LA-EA3 won’t work with A-mount lenses with autofocus abilities. But, they will work in manual focus mode.

According to reports, Sony has discontinued the A-mount camera system. The final A-mount product from Sony was an A-mount to E-mount adapter. 

Why Did Sony Discontinue The A-Mount Models?

Sony took this step to shift to mirrorless cameras completely. Because of this step, many camera makers have also discontinued their DSLR or lenses carefully.

The A-mount DSLR models have been removed from the website or are not available. Possibly, the A-mount to E-mount adapter was made to help ease the transition to mirrorless cameras. There can be many reasons behind the discontinuity. It can be poor sales, company direction, or various other factors.

The final DSLR model from sony was the a99 II in 2016. It had many exceptional features, and a few of them are as follows:

  • Backside-illuminated frame
  • 42.4 Megapixels Exmor R CMOS sensor with a gapless-on-chip design
  • Improved light gathering and fast data readout with the design
  • 4D autofocus in a full-frame sensor

Differences Between E-Mount Lenses And A-Mount Lenses

The former comes with the Sony Translucent Mirror Technology. The biggest benefit of A-mount cameras is the full-time phase detection autofocus. On the other hand, the E-mount cameras provide certain advantages because of the distance of the short flange. It makes it easy to develop a compact design and high-performing lenses. It also offers the best handling properties.

Size Of The Image Sensor

Both cameras have options for full-frame and APS-C sensors. There are many sensors in everyday use. Out of these, the full-frame is a large format, whereas the APS-C comes under a medium format. Both formats have their benefits and are famous for them.

Can You Use An A-Mount Lens On An E-Mount Body?

Yes, you can do that. With the help of a mount adaptor, you can use an A-mount lens on an E-mount body. You cannot interchange them because A-mount and E-mount have different diameters. We also cannot use an E-mount lens on an A-mount body. Please note that when you use a mount adapter, there might be certain limitations. For instance, there won’t be a SteadyShot function or an autofocus function.

A-Mount Lenses Vs. E-Mount Lenses

  • You can use A-mount lenses on the camera models that have a translucent mirror or a mirror. The ILCA-xx, DSLR-Axx, and SLT-Axx are some excellent examples. Now, E-mount lenses are the lenses we use on mirrorless camera models. For instance, ILCE-xx, NEX-xx.
  • For an A-mount lens, the model name begins with SAL. For example, SAL1650. Similarly, for an E-mount lens, the model name starts with SEL. For instance, SEL16F28.
  • You can use an A-mount lens on an E-mount body with a mount adaptor. However, there might be some problems like the unavailability of specific functions like the SteadyShot. But, you cannot use an E-mount lens on an A-mount body.

Please note that Sony provides both E-mount lenses and A-mount lenses for meeting every mount specification on camera bodies.


For those who have Sony Mirrorless cameras, it will be best to choose an E-mount lens. Irrespective of which image sensor you have, the lens fits both a full-frame and an APS-C camera. Out of that, it ultimately comes down to base the choice on the lens quality.

If you want a lens for your Sony SLR, it is best to go for an A-mount lens. These lenses only fit the image sensor type of that particular camera. In most cases, it is always an APS-C sensor.

And if you have a Sony Mirrorless camera but have many SLR lenses, you should buy an adapter. It will help you use an A-mount lens on a mirrorless camera.