I don't quite understand this reasoning (plus that of the following posters), unless the intention is to always use the lens at maximum aperture, i.e. wide open. I mean, once you're "stopping down" the lens, all that extra "stops of light" just goes poof! and whether you're using an f/1.4 or an f/2 or an f/2.8 or an f/5.6 lens becomes irrelevant.
That is correct, but two things will still hold
- at night and hand held, you will shoot open aperture or you won't get the shot, period. That's where large aperture and IS are a real benefit, not on a sunny summer day around noon.
- If you have to stop down to 5.6 for whatever reason (DOF, sharpness), IS will still help you get sharp images with the resulting longer exposure times.
Another thought: The 24-70/4L IS may be a good option. It covers the 35mm focal length, has IS, and gives the flexibility of a zoom. It's obviously more expensive than the 35/2 IS, but weather sealed and comparable in price to the 35/1.4L
Personally, I prefer a depth of field scale for stopping down, so I'm saving up for a 35/2 IS as a companion to my 24/2.8 IS. A modern full frame sensor in combination with IS means that wide apertures only come into play for selective focus.
I was tempted by the zoom option with the red ring, but decided against it.