Sigma EX 105/2.8 DG OS HSM Macro (Sony) vs Irix 45mm T1.5 Sony E

Sigma EX 105/2.8 DG OS HSM Macro (Sony) vs Irix 45mm T1.5 Sony E

When comparing Irix 45mm T1.5 Sony E and Sigma EX 105/2.8 DG OS HSM Macro (Sony), 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 Irix 45mm T1.5 - Sony E has the largest aperture of the two lenses at 1.5 compared to the 2.8 aperture of Sigma EX 105/2.8 DG OS HSM Macro - (Sony). This means that you get more light to your sensor using Irix 45mm T1.5 - Sony E wide open, and therefore it might be a better lens in dark situations.

Winner: Irix 45mm T1.5 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.

Specifications

Full specifications table of Sigma EX 105/2.8 DG OS HSM Macro (Sony) and Irix 45mm T1.5 Sony E:

	Sigma EX 105/2.8 DG OS HSM Macro - (Sony)	Irix 45mm T1.5 - Sony E
	Price ➔	Price ➔
Brand	Sigma	Irix
Weight	Missing	1100 g
Lens Mount	Sony E	Sony E
Focal Length	105 mm	45 mm
Largest Aperture	2.8	1.5
Anamorphic	Missing	No
Aperture Range	Missing	1.5 - 22
Filter Thread Diameter	Missing	86
Lens Front Diameter (Not Filter Thread)	Missing	95 mm
Aperture Blades	Missing	9
Lens Groups	Missing	9
Lens Elements	Missing	11
Image Stabilization	Missing	No
Autofocus	Missing	Hayır
Macro	Missing	No
Weather Seal	Missing	Yes
Full Frame Coverage	Missing	Yes
Lens Hood Included	Missing	No