I think the 24-70 is more useful for most people and it is not very big as far as these f2.8 lenses go. However, the 16-35mm f4 is really good, and I think I would find for general wandering about taking photos a 16-35 + 50mm + 70+mm lens would work very nicely instead of a 24-70 + 70+mm. The new 24-70mm f/2.8 G Master II will be available for $2,300 and is expected to ship on June 24. So with all the on-paper specifications out of the way, let’s get into how it handles in the I’ve set aside the budget for a f2.8 lens, the real question is whether to go for the 24-70 2.8 v2, 16-35 2.8 v3 or to stretch a little and keep the old 24-70 f2.8 v1 and get the 16-35 2.8 v3. You could get a Sigma or a Samyang 24mm f/1.4 for your astro work as well for less than the price difference between the two 16-35mm zooms. F2.8 maximum aperture. 16-35mm focal range. Sub-wavelength Coatings (SWC) and Air Sphere Coatings (ASC) to eliminate lens flare and ghosting. Two large-diameter double-surface GMo lenses plus a ground aspherical lens to help decrease distortion, curvature of field and astigmatism. Two UD lenses help to reduce chromatic aberration. The primary reason is price. However, rebate can affect the price comparison significantly. With the current instant rebates in place, the 17-40mm f/4L is only $250.00 less expensive than its 16-35 f/4L IS counterpart. Many will appreciate the 16-35 f/4L IS's benefits for the difference in price. But again, if money is really tight, the 17-40mm The 24-70 f/4 is a Nikon designed, Nikon manufactured S-class lens with superb sharpness. The 28-75 f/2.8 is a Nikon-branded Tamron lens. It is not Tamron's current generation version of this lens but their previous generation. So you trade likely lower quality with the 28-75 for one stop of extra light. For an inexpensive “kit” zoom lens, the Nikon Z 24-70mm f/4 S shows amazing results. It is almost as sharp as its big brother in the center frame, but definitely loses out in the corners. At 35mm, both lenses do really well at f/4. However, once stopped down to f/5.6, the Nikon Z 24-70mm f/2.8 S shows visibly better corner performance in At f8 things are almost neck and neck, if anything the f4IS lens actually seems to have the edge. F16 and F32 are considerably and equally effected by diffraction at the 70mm length, f32 is totally unusable in my opinion. 135mm – At 135mm the 70-200 f2.8 L IS II performs similarly when wide open at f2.8 as it did at 70mm. At f4 again the f4 Vay Tiền Nhanh Chỉ Cần Cmnd.