I have a dilemma with the set of lens for the Canon 7D mark II which I have been using to travel around the world paired with a 17-55 f/2.8 and the 70-200 f/4. However there is always a gap between 55mm and 70mm which I need to fill as often times is the needed focal range. One day I might move to full frame (2 years) for what I need to plan ahead; nothing wrong with the actual Efs17-55mm but it is time to move to an "L" type.
My options are:
24-70mm f/4 IS because is sharp, light and has IS.
24-70mm f.2.8 no doubt is better, but should I need 2.8 for travel and the extra cost and weight?
24-105mm f4 IS, which I hear not as good as the 2 above and nothing to win.
I know I will loose the wide from 17 to 24mm which I could just add the Canon 10-18mm which is small, cheap and well rated, or any other similar.
Any thoughts, recommendations or options? I do not do weddings or portraits, I just enjoy my retirement traveling and getting great pictures from the world.