Is Nikon D3100 and Sigma EX 8mm F3.5 DG Fisheye compatible?

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

Buy	Nikon D3100 Released: 2010 Type: Digital SLR Sensor: DX / APS-C (1.5x) 14,2 Megapixels 4608 x 3072 pixels
Buy	Sigma EX 8mm F3.5 DG Fisheye Released: 2006 Wide Angle Prime Lens & Fisheye Focal Length: 8 mm Aperture: f/3,5

Can you combine these two?

Last updated: December 2024

This is the short answer:

The camera and lens you have chosen can be used together but you will only have manual focus.

Lack of Autofocus

The lens supports autofocus but neither the camera nor the lens has a built-in autofocus (AF) motor. You as a photographer will not have the possibility to use autofocus to obtain a sharp image. Focusing manually will then be the only way to obtain sharpness.

Read more about Autofocus motor

Focal Length

The Nikon camera has a sensor of type DX, a smaller version compared to a Full frame sensor, which means that your experienced Focal length will be multiplied by 1.5x.

This lens has focal length:
8 mm

Since Nikon D3100 does not have a Full Frame sensor the experience focal length you will experience will be:
12 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:

Nikon D3100
505 gram

Sigma EX 8mm F3.5 DG Fisheye
400 gram

Together they have a total weight of 905 gram (equal to 2 lb).

Compatibility Check ID: 9999

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