Silver-Halide wrote in post #18154817
I own 2 of the 3 lenses you mentioned: both the F/4's not the 24-70 f/2.8 II. I'd definitely pass on the 2.8 II for what you want: landscapes and a lil' macro. the IS is nice but when you're at sunrise/sunset or at night you'll still need your tripod (and turn your IS off for those, of course). Images from both my lenses are plenty sharp and I can't imagine not having a 16-35 for landscapes. I wouldn't be surprised if the 24-70 f/2.8 II is sharper at F/4 than both the f/4 zooms being discussed but for landscapes I'm usually shooting at f/5.6-11 anyway and I'd be surprised if there's a notable difference by then as those are usually the sweet spots where the differences are marginalized.
The macro function on the 24-70 f/4L isn't all that great. I often get so close that I'm casting a shadow on my subject and have to add some light. Its been good enough for ring shots though.
I sometimes wish I had the 2.8 for better low light focus at wedding receptions but I'll be grabbing a 5dIV soon for the lovely -3EV focusing and that should be good enough with the 24-70 f/4. I also have the 50mm f/1.2L when its really dim.
Silvers summation above is pretty spot on.
For a few years I was looking to add a 24-70 to my Arsenal. When I went full frame to the 5D Mark III in 2013, the wide end distortion on the 24-105 was rearing its ugly head.
So which one? The 24-70 f/2.8 Mark II with its excellent performance or the smaller f/4 L WITH Image Stabilization.
Since I did not have an Ultra Wide Zoom, I needed to fill that void first. So I chose the 17-40 f/4 L over the one extra stop for double the price 16-35 f/2.8 L II. Since most of my Wide was stopped down, why not grab the 17-40. Then a few months later in the spring of 2014, Canon introduced the 16-35 f/4 L IS............now you're talking.
The next year with a trip to Rome was the excuse I needed to go grab the new Ultra Wide Zoom with IS. Since tripods are not allowed in the Basilica's, IS was calling me. My investment certainly did not let me down. Being able to shoot with a shutter speed of say 1/10 of a second, handheld with razor sharp results was worth every dime. Coupled with walking all day without enough water leading to the shakes, or Yips, does not help.
So what about the 24-70? F/2.8 vs f/4 With IS.......
With a return trip to Italy, this time to Venice and Florence, I decided to follow my own "When in Rome" findings.
I decided to buy the f/4 L IS. Since IS proved to be valuable in the Vatican and elsewhere, why not follow my lead.
So off to Italy again, with 2 Gripped 5D Mark III's, the 16-35 f/4 L IS, 24-70 f/4 L IS and the wonderful big heavy 70-200 f/2.8 L IS Mark II. Michelangelo's David deserves the best.
However my back and shoulder was killing me for weeks after our return home in February. Since the f/4's covered me in the 16-70 range, why not in the 70-200 range as well. So last summer I forced myself to swap out the 70-200 f/2.8 L IS Mark II for my old tried and true 70-200 f/4 L IS for a trip to Iceland.... No worries what so ever with the f/4 L IS. Sharp beautiful images without the added weight on my shoulder and body. Came home in great shape.
So while having f/2.8 is needed at times, I am now looking at things differently. Why not use the smaller lighter f/4's when warranted? Why put the stress on me physically when not needed. A different tool for different jobs, not just overseas, but here on the other side of the pond as well. Whether work or travel.
So I would certainly recommend two lenses over the one.
Canon 5D Mark III (x2), BG-E11 Grips, Canon Lenses 16-35 f/4 L IS, 17-40 f/4 L, 24-70 f/4 L IS, 70-200 f/2.8 L IS II, 70-200 f/4 L IS, 70-200 f/4 L IS Version II, 100-400 f/4.5-5.6 L IS Version II, TS-E 24 f/3.5 L II, 100 f/2.8 L Macro IS, 10-22 f3.5-4.5, 17-55 f/2.8 L IS, 85 f/1.8, Canon 1.4 Extender III, 5 Canon 600 EX-RT, 2 Canon ST-E3 Transmitters, Canon PRO-300 Printer