Nick_Reading.UK wrote in post #16709024
Yeah me too but it's like rocking horse sh1t.. Anyway the 1.4 is better. Better iq, better build, quicker AF, and quiet while focusing...
I disagree. I had the 1.4 at the same time as the 1.8 Mk I. Iq was the same except for bokeh, the 1.8 has pentagons when you stop down, the 1.4 has nervous bokeh that i absolutely cannot stand. Af is not much quicker, it is mainly quieter. Build quality is absolutely not better on the 1.4 than the 1.8 mk I. External build is the same, both are quite decent. Internally however, the 1.4 is much worse. The 1.4 is known for its weak, breakage-prone af mechanism which is in part due to shoddy design of the moving parts of the lens, whereas the 1.8 is known for being near faultless in reliability.
I sold the 1.4 and kept the 1.8 Mk I.