Sigma 100-400/5-6,3 DG DN OS Sony E vs Sirui Venus 100mm T2.9 1.6x Sony E

Sigma 100-400/5-6,3 DG DN OS Sony E vs Sirui Venus 100mm T2.9 1.6x Sony E

When comparing Sirui Venus 100mm T2.9 1.6x Sony E and Sigma 100-400/5-6,3 DG DN OS Sony E, which one is better?

1. Lens Mount Comparison

These two lenses use the same lens mount, the Sony E. This means that both lenses are compatible with cameras that use this mount.

Winner: Tied

Regarding lens mount: Popular lens mounts are Canon RF and EF, Micro Four Thirds and Nikon Z. Different lens mounts lets you connect different lenses to camera bodies, but some might not be compatible. This can be helped by using an adapter, like a Canon EF to RF adapter.

2. Largest Aperture Comparison

The Sirui Venus 100mm T2.9 1.6x - Sony E has the largest aperture of the two lenses at 2.9 compared to the 5 - 6.3 aperture of Sigma 100-400/5-6,3 DG DN OS Contemporary - Sony E. This means that you get more light to your sensor using Sirui Venus 100mm T2.9 1.6x - Sony E wide open, and therefore it might be a better lens in dark situations.

Winner: Sirui Venus 100mm T2.9 1.6x Sony E

Regarding largest aperture: A lower aperture number means that the widest aperture on the lens is larger. This means that more light will hit the sensor and also that the depth of field will be shallower, better separating your subject from the background.

3. Anamorphic Comparison

Winner: Sirui Venus 100mm T2.9 1.6x Sony E

Regarding anamorphic: Anamorphic lenses are usually used on cinema cameras and squeezes the image when its recorded, which gives the final, stretched out, image oval bokeh and a different angle of view. The most common lenses, however, are not anamorphic but spherical, which gives a spherical bokeh and is a much cheaper lens design.

4. Lens Type Comparison

The Sigma 100-400/5-6,3 DG DN OS Contemporary - Sony E is a Zoom lens while the Sirui Venus 100mm T2.9 1.6x - Sony E is a Prime lens. Whether or not a zoom lens or a prime lens is what you need, is up to you to decide; they both have their respective strengths and weaknesses.

Winner: Tied — It depends on your gear

Regarding type: There are two types of lenses; zoom lenses and prime lenses. Prime lenses have a fixed focal length and cannot be zoomed, while zoom lenses have a focal length range and can be zoomed in to get closer to the subject. Prime lenses are usually lighter, cheaper and let in more light. Zoom lenses are more versatile but are more expensive since they require a more advanced lens design.

5. Stabilization Comparison

Sigma 100-400/5-6,3 DG DN OS Contemporary - Sony E features built-in image stabilization and Sirui Venus 100mm T2.9 1.6x - Sony E does not. Depending on your shooting style, this may be a heavy factor to choose Sigma 100-400/5-6,3 DG DN OS Contemporary - Sony E instead of Sirui Venus 100mm T2.9 1.6x - Sony E.

Winner: Sigma 100-400/5-6,3 DG DN OS Sony E

Regarding image stabilization: When a lens features built-in stabilization, it will actively help you hold the image steady by adjusting the optical elements inside the lens to compensate for movements. Do remember that lens stabilization is not required, but it may be suitable depending on your specific needs.

Specifications

Full specifications table of Sigma 100-400/5-6,3 DG DN OS Sony E and Sirui Venus 100mm T2.9 1.6x Sony E:

	Sigma 100-400/5-6,3 DG DN OS Contemporary - Sony E	Sirui Venus 100mm T2.9 1.6x - Sony E
	Price ➔	Price ➔
Brand	Sigma	Sirui
Weight	1160 g	Missing
Lens Mount	Sony E	Sony E
Focal Length	100 - 400 mm	100 mm
Largest Aperture	5 - 6.3	2.9
Anamorphic	No	Yes
Anamorphic Squeeze Factor	Missing	1.6
Minimum Focus Distance	112 cm	Missing
Type	Zoom	Prime
Filter Thread Diameter	67	Missing
Aperture Blades	9	Missing
Lens Groups	16	Missing
Lens Elements	22	Missing
Image Stabilization	Yes	No
Autofocus	Evet	Missing
Macro	No	Missing
Weather Seal	No	Missing
Full Frame Coverage	Yes	Missing
Lens Hood Included	Yes	Missing
Stabilization Type	Sigma Optical Stabilizer (OS)	Missing