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| Available colors | ||
| Editiorial reviews | ||
| User rating |
 Canon EF 40mm f/2.8 STM |  Canon EF 50mm f/1.8 STM | |
|---|---|---|
| Lens type | Normal |
|
| Lens mount | Canon EF | Canon EF |
| Canon EF 40mm f/2.8 STM | Canon EF 50mm f/1.8 STM | |
|---|---|---|
| Max Format size | Full-frame | Full-frame |
| Focal length | < 40 | < 50 |
| Maximum magnification | 0.18 x | 0.21 x |
| Image stabilisation | no | no |
| Canon EF 40mm f/2.8 STM | Canon EF 50mm f/1.8 STM | |
|---|---|---|
| Aperture max | 2.8 | 1.8 |
| Aperture min | 22 | 22 |
| Aperture ring | no | no |
| Number of diaphragm blades | 7 | 7 |
| Canon EF 40mm f/2.8 STM | Canon EF 50mm f/1.8 STM | |
|---|---|---|
| Focus method |
| Internal |
| Autofocus | yes | yes |
| Autofocus motor type | STP | STP |
| Full-time Manual focusing | yes | yes |
| Closest focusing distance | 0.3 | 0.35 |
| Distance scale | no | no |
| Depth of field (DoF) scale | no | no |
| Canon EF 40mm f/2.8 STM | Canon EF 50mm f/1.8 STM | |
|---|---|---|
| Construction | Fixed | Fixed |
| Elements | 6 | 6 |
| Groups | 4 | 5 |
| Canon EF 40mm f/2.8 STM | Canon EF 50mm f/1.8 STM | |
|---|---|---|
| Colour of product | Black | Black |
| Tripod collar | no | no |
| Hood supplied | no | no |
| Filter thread | yes | yes |
| Sealing | no | no |
| Canon EF 40mm f/2.8 STM | Canon EF 50mm f/1.8 STM | |
|---|---|---|
| Weight | 4.59 oz | 5.64 oz |
| Diameter | 2.69 in | 2.72 in |
| Length | 0.9 in | 1.55 in |
| Filter size | 2.05 in | 1.93 in |
| Pros | ||
|---|---|---|
| Cons |
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