It’s hard to overstate the size and weight because of what the lens offers, 14mm on the wide end with range up to 30mm. Generally, lenses that offer 14-16mm on the wide end, even at f/4, are large, bulkier lenses.
And more so, lenses offering a true 14mm FX perspective generally have a bulbous front element, making the use of filters impossible without a filter attachment system (which adds a lot of size and weight).
The 14-30mm f/4 does not have a bulbous front element and takes 82mm threaded filters, which is great for those scenes requiring a polarizer or ND filter.
The build quality of the lens is also excellent. The lens is sealed and I’ve put it through the paces from a 11-day backpacking trip in Alaska to getting soaked with salt water on the coast.
Things I don’t like about the build are the external zoom extension and the focus by wire design, which is seen on many mirrorless lenses. I miss having a focus meter and being able to focus mechanically, like on my old Nikon 14-24mm f/2.8.
These downsides aid to the small build of the lens though – always trade-offs.
Image Quality
The image quality of this lens is spectacular. It is sharper in the center and corners than my old 14-24mm f/2.8 ED. That says a lot since the 14-24mm was once considered the best wide-angle ever made. It really is an innovative lens.
At f/8, center sharpness is excellent, while corners are a little soft, but as I said, still sharper than the old 14-24mm f/2.8.
Now, things had to happen behind the scenes for Nikon to pack 14mm into this lens with a flat front element. Those behind the scenes happen in the form of digital corrections that are built into the lens profile and are not able to be changed. Corner distortion and vignetting is corrected via these profile fixes. The lens is actually a tad wider than 14mm, but the profile corrections and cropping bring it to a true 14mm FX perspective.
Now, I think the image quality of this lens is fantastic and we will get to comparisons shortly, but there are image quality shortfalls of this lens.
The biggest, in my opinion, is the sun star. Nikon’s DSLR glass produced excellent sun stars. I know sun stars are subjective, but I think the new Nikon mirrorless line produces some of the worst sun stars out there. I think it’s an important consideration for landscape photographers, as we shoot into the sun a lot and images with a sun star are often dynamic and attention grabbing.
I’ll attach some examples below. One thing I’ll add in this lens favor though is its coatings and ability to handle flare. You can shoot straight on into the sun and minimal or non-existent flare. So, although the sun star lacks, the flare control is the best I’ve ever seen on a lens.
Below are two examples of the sun star, taken at f/16. These are unprocessed RAW files with the ‘Camera Standard’ profile. Notice how there is little to no flaring. I find it’s best to stop down to f/22 on this lens, versus the old 14-24mm f/2.8, which produced awesome stars at f/11-f/16.