I have the EF 17-40 (pretty decent, may even wanna just pick up a 16-35mm used at some point to get better sharpness) and 24-105 (not my favorite, and the lens creeps down when carrying). I may just give all these a try on the R5 for a few months and either bite the bullet on 24-70 or settle for the RF 24-105. 1. Also, the 24-70 2.8 is about half the price of the RF 24-105L. Just due to 1.6x crop, I do think that something 16-35 might be something nice to think about. If you are leaning towards the 24-105L… maybe you might consider getting two lenses instead: 24-70 2.8 ($550) + Tokina Opera 16-28 2.8 ($400). Less DoF at F2.8 vs F4.0 but this is obvious. The lens will retail at over twice the price of the F4 lens. And I expect the optics to be far far better also. It will also be twice the size and weight too. You dont buy an F2.8 zoom just to take slightly better low light photos. 24-70/4 at B&H = $1,198. $1,198 x 2 = $2,396. 24-70/2.8 at B&H Canon RF 24-70mm F2.8L IS Review Canon EF-M 28mm f/3.5 Macro IS STM Review Three Way Shootout Part 1: the Lenses Canon EF 70-300mm f/4-5.6L IS Review Everybody I have spoke to has said, the best lens to get is a Canon 24-70 II F2.8 as the best all round lens. However I have always thought I have quite a shaky hand, so started to consider the Canon 24-105 F4 II IS as this comes with the IS. Although reviews still seem to pit the 24-70 II higher! Canon makes an 18-135mm zoom which is a good "walk around" lens. It's not as good as the 24-105 and not nearly as good as the 24-70 because that lens has a "variable focal ratio" and doesn't collect as much light. The 24-70 and 24-105 are both "L" series lenses -- Canon's top-end glass. But one of the rules for qualifying as an "L" series lens Now for the, not only correct answer but the best answer. :smileywink: My bag has been reduced to these three lenses. They can do 99% of whatever event I ever, and want to, shoot. Canon EF 8-15mm f/4L Fisheye USM Lens Canon EF 24-70mm f/2.8L II USM Lens Canon EF 70-200mm f/2.8L IS II USM Lens I l 3. RF 24-105mm f4 L IS USM. The RF 50mm f1.2 and RF 85mm f1.2 would do the heavy lifting, while the RF 24-105mm f4 would give me some flexibility with focal length when necessary. Alternatively, I could remove the RF 24-105mm f4 (and perhaps the RF 50mm f1.2), and replace it with the RF 28-70mm f2 USM L. I say go for the 24-70 2.8. Check Canon’s refurbished site. They have regular sales too. It’s a better lens than the 24-105 by a good margin if we are talking later editions. You can also get an ef-RF converter. In my use I found the mirrorless frames worked very well with ef lenses. At 24mm, the RF 24-105 F2.8 appears sharper than the RF 24-70 F2.8 in the center and midframe. The corner comparison shows the two lenses performing mostly similarly. At the long end, the two lenses perform similarly. The 24-105 has a slight advantage in the center, and the 24-70 has a slight advantage in the corner. SB9EpP.