LensTip.com

Lens review

Nikon Nikkor AF-S DX 35 mm f/1.8G

8 May 2009
Arkadiusz Olech

7. Coma and astigmatism



Please Support Us

The coronavirus crisis has been adversely affecting many businesses and, sad but true, ours is not an exception. Despite that difficult situation we would like to preserve continuity and high quality of publications available on all our websites. Still, we are now aware it might be impossible without additional financial help. That's why we would like to ask all those who visit, read, and care about Optyczne.pl, LensTip.com i Allbinos.com for support - it's enough you send us a small sum of money via PayPal. If a lot people decide to support our websites we think we'll stand a chance and survive next months without any lasting harm. We count on your support and understanding, stay safe and be healthy.

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

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

Another reason, apart from chromatic aberration, for evident reduction of image quality in the corners of the frame is coma. At maximum aperture the defect quite strongly deforms the diode picture. Fortunately, after stopping down by one aperture value the situation improves considerably.

Nikon Nikkor AF-S DX 35 mm f/1.8G - Coma and astigmatism


Astigmatism, understood as the average difference between vertical and horizontal MTF values, amounted to 9%. It’s not trifling, but you don’t need to worry about it. Just a typical result in this price class, that won’t bother us much, but does have an impact on lowering the image quality.