Introduction
![zeiss zm 18mm 4.0 distagon review leica m10 m11 42mp 24mp contrast sharpness vignetting colors coma](https://phillipreeve.net/blog/wp-content/uploads/2022/11/Zeiss_ZM_18mm_4.0_Distagon_M10_2.jpg)
The Zeiss ZM 18mm 4.0 Distagon is the second widest lens of the ZM family and one of the few 18mm M-mount lenses. Is 18mm being an unpopular focal length among Leica users the reason this lens has already been discontinued or is it because of its optical qualities? Let’s find out in this review.
Lens is being tested on 42mp Sony A7rII and 24mp Leica M10
Sample Images
![zeiss zm 18mm 4.0 distagon review leica m10 m11 42mp 24mp contrast sharpness vignetting colors coma](https://phillipreeve.net/blog/wp-content/uploads/2022/12/Zeiss_ZM_18mm_4.0_4.0_Sample_16.jpg)
![zeiss zm 18mm 4.0 distagon review leica m10 m11 42mp 24mp contrast sharpness vignetting colors coma](https://phillipreeve.net/blog/wp-content/uploads/2022/12/Zeiss_ZM_18mm_4.0_4.0_Sample_10.jpg)
![zeiss zm 18mm 4.0 distagon review leica m10 m11 42mp 24mp contrast sharpness vignetting colors coma](https://phillipreeve.net/blog/wp-content/uploads/2022/12/Zeiss_ZM_18mm_4.0_4.0_Sample_11.jpg)
![zeiss zm 18mm 4.0 distagon review leica m10 m11 42mp 24mp contrast sharpness vignetting colors coma](https://phillipreeve.net/blog/wp-content/uploads/2022/11/Zeiss_ZM_18mm_4.0_8.0_Sample_4.jpg)
![zeiss zm 18mm 4.0 distagon review leica m10 m11 42mp 24mp contrast sharpness vignetting colors coma](https://phillipreeve.net/blog/wp-content/uploads/2022/11/Zeiss_ZM_18mm_4.0_8.0_Sample_3.jpg)