LensTip.com

Lens review

Tokina ATX-M 11-18 mm f/2.8 E

14 December 2022
Maciej Lata││o

7. Coma, astigmatism and bokeh

It seems coma is a bit bothersome for the Tokina because diode images in the frame corners turn into a small comma at every focal length. It is a classic symptom of this aberration. Still, they lack side 'wings' that are created by badly corrected aberrations of higher degrees so I suppose in this category there are no serious reasons to complain.

A6400, 11ámm, f/2.8, center A6400, 11ámm, f/2.8, Corner
Tokina ATX-M 11-18 mm f/2.8 E - Coma, astigmatism and bokeh Tokina ATX-M 11-18 mm f/2.8 E - Coma, astigmatism and bokeh
A6400, 14ámm, f/2.8, center A6400, 14ámm, f/2.8, Corner
Tokina ATX-M 11-18 mm f/2.8 E - Coma, astigmatism and bokeh Tokina ATX-M 11-18 mm f/2.8 E - Coma, astigmatism and bokeh
A6400, 18ámm, f/2.8, center A6400, 18ámm, f/2.8, Corner
Tokina ATX-M 11-18 mm f/2.8 E - Coma, astigmatism and bokeh Tokina ATX-M 11-18 mm f/2.8 E - Coma, astigmatism and bokeh


Astigmatism understood as an average difference between horizontal and vertical MTF50 function values, amounted to 6.8%, a result on the borderline between low and very low level. It's also worth adding that the aberration is on the same level for every focal length we examined.


Please Support Us

If 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.

- - - - - - - - - - - - - - - - - advertisement - - - - - - - - - - - - - - - - -

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Out-of-focus images provided by the Tokina 11-18 mm won't bowl you over for sure. They feature too many uneven patches connected to onion-ring bokeh and a brighter rim on top of that. Still mechanical vignetting is not especially distinct here, remaining noticeable only and solely at the maximum relative aperture.

A6400, 18ámm, f/2.8, center A6400, 18ámm, f/2.8, Corner
Tokina ATX-M 11-18 mm f/2.8 E - Coma, astigmatism and bokeh Tokina ATX-M 11-18 mm f/2.8 E - Coma, astigmatism and bokeh
A6400, 18ámm, f/4.0, center A6400, 18ámm, f/4.0, Corner
Tokina ATX-M 11-18 mm f/2.8 E - Coma, astigmatism and bokeh Tokina ATX-M 11-18 mm f/2.8 E - Coma, astigmatism and bokeh
A6400, 18ámm, f/5.6, center A6400, 18ámm, f/5.6, Corner
Tokina ATX-M 11-18 mm f/2.8 E - Coma, astigmatism and bokeh Tokina ATX-M 11-18 mm f/2.8 E - Coma, astigmatism and bokeh