Upload & Sell: Off
I have been using the 35/1.4 L for months, even more since I switched to FF (I often used the 24/1.4 L on crop bodies). I really enjoy this lens, and 35 mm is one of my favourite focal.
Recently, I noticed that after a whole day of shooting, I was not steady enough for photos at about 1/40 s. It was a pain for example inside churches, in spite of taking a burst of shots to reduce the noise. I had several burst completely useless because of my shaking.
So after many nights thinking of that, looking for reviews and so on, I finally decided to buy the new 35/2 IS. I'm not planning to forget my old L (I need more time to compare these two lenses). But now, at the end of the day, or inside monuments with poor lighting, I'm much more confident. I even have the opportunity to choose a slower speed if required.
The best of both worlds ?