Is Sony a7S III and Sigma 10-18mm F2.8 DC DN compatible?

Below you will find your chosen camera and lens. Click on the product name for more information.

Buy	Sony a7S III Released: 2020 Type: Mirrorless Sensor: Full frame 12 Megapixels 4240 x 2832 pixels
Buy	Sigma 10-18mm F2.8 DC DN Released: 2023 Wide Angle Zoom Lens Suited for cameras with APS-C sensors Focal Length: 100-18 mm Aperture: f/2,8

Can you combine these two?

Last updated: November 2024

This is the short answer:

The camera and lens you have chosen might work but in a cropped mode since the lens is constructed for a smaller APS-C sensor.

Cropped Mode and Lower Resolution

This lens has focal length:
100-18 mm

You will experience:
150-27 mm

Using a lens constructed for a APS-C sensor can result in that the resolution becomes lower that the 12 MP that the Sony a7S III has.

Focal Length

The Sony camera has a sensor of type Full frame which means that your experienced Focal length will be same as the lens specification tells us.

This lens has focal length:
100-18 mm

Since Sony a7S III does not have a Full Frame sensor the experience focal length you will experience will be:
150-27 mm

Read more about Crop factor

Total weight

When you are looking at a combination of a camera and a lens you must always consider the total weight. Each product weighs in at:

Sony a7S III
699 gram

Sigma 10-18mm F2.8 DC DN
260 gram

Together they have a total weight of 959 gram (equal to 2.11 lb).

Compatibility Check ID: 3303

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