raid
Dad Photographer
The 35/1.8 shows more ghost pictures with strong lights (as shown in Raid's pics) and less contrast wide open, but it clears up nicely when stopped down. The 35/2 is better in contrast wide open (sharpness is the same) and, in compensation why it' so pushed, the bokeh is harsher.
At f/5.6 or f/8 both are excellent and no difference in results. After all, both designs are very similar. It's highly a matter of taste (with the appearance as well). Best: have both... 😉
Ask any seller for hazing in both lenses. The 35/1.8 is prone to haze. The 35/2 is lesser prone to spider-web type fungus, which isn't easy to detect because the glass is so small! My 35/1.8 shows a slight haze (I use it nevertheless) whereas the very slight fungus of my 35/2 could luckily be removed without damage.
After seeing the "glow", I sent the 35/1.8 for cleaning. Now, it should show less "ghosts"and more contrast.