Nikon Nikkor Z 26 mm f/2.8
7. Coma, astigmatism and bokeh
| Center, f/2.8 | Corner APS-C, f/2.8 | Corner FF, f/2.8 |
|
|
|
| Center, f/4.0 | Corner APS-C, f/4.0 | Corner FF, f/4.0 |
|
|
|
Astigmatism, understood as an average difference between vertical and horizontal MTF50 function values, amounted to 4.8% and it is a low value. It seems here the Nikkor performs even better than in the case of coma.
Please Support UsIf you enjoy our reviews and articles, and you want us to continue our work please, support our website by donating through PayPal. The funds are going to be used for paying our editorial team, renting servers, and equipping our testing studio; only that way we will be able to continue providing you interesting content for free. |
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
When it comes to out-of-focus areas it wasn't that easy. After all you deal here with a wide angle lens which construction features as many as three aspherical elements. It makes itself felt – the onion-ring bokeh is quite pronounced. As a consolation you can enjoy a sensible performance of mechanical vignetting. Due to the significant diamenter of the mount even such a small lens as this one doesn't have any problems – its mechanical vignetting disappears completely on stopping down the aperture by 2 EV.
| Center, f/2.8 | Corner APS-C, f/2.8 | Corner FF, f/2.8 |
|
|
|
| Center, f/4.0 | Corner APS-C, f/4.0 | Corner FF, f/4.0 |
|
|
|
Center, f/5.6 | Corner APS-C, f/5.6 | Corner FF, f/5.6 |
|
|
|
