preferences of the 1.8 AFS-Nikkors

[Per Inge Oestmoen]

I'm happy with my AF-S 24/1.8. Sharp across.

Yes, but could it have been even better if you had used an aperture of, say, F/8 or F/11 instead of F/13? Just a thought.

[Bjørn Rørslett]

The aperture setting also has an important influence for the appearance of the sun rays and size of the solar disk. Thus one has to find a balance between need for stopping down and keeping the required image quality. Fixed recommendations for aperture is tricky at best.

[Jack Dahlgren]

I cannot fault my 20mm 1.8G either.

Is the purple and green fringing shown in the branches characteristic of the 20mm f/1.8 lens? Seems a bit strong.

[Bjørn Rørslett]

Most lenses will have troubles with excessive contrast like that of the derelict house Per Inge posted. Some of the fringing might be removed in the RAW converter though (if the software supports such corrections).

[Per Inge Oestmoen]

Is the purple and green fringing shown in the branches characteristic of the 20mm f/1.8 lens? Seems a bit strong.

Yes, it is typical.

It is also typical of every lens I have ever come across against similar subjects.

[Per Inge Oestmoen]

The aperture setting also has an important influence for the appearance of the sun rays and size of the solar disk. Thus one has to find a balance between need for stopping down and keeping the required image quality. Fixed recommendations for aperture is tricky at best.

I guess the best recommendation is to state that the best aperture - like many other parameters - depends on exactly what one wants to convey and how.