Nikon’s New 120-300mm f/2.8 with Built-in Teleconverter: The Lens I Always Wanted for Canon
If you’ve been reading my rants here on my blog, you already know how I feel about the Canon RF 100-300mm f/2.8. That lens is the main reason I’ve stayed loyal to Canon even while expanding into Sony.
There’s always been one feature I wished it had: a built-in teleconverter. No more stopping to attach an extender, no extra risk of dust. Just flick a switch and gain reach when you need it.
Now Nikon has gone and done exactly that.
On May 7, 2026, Nikon announced they’re developing the NIKKOR Z 120-300mm f/2.8 TC VR S. It’s a full-frame S-Line telephoto zoom with a built-in 1.4x teleconverter that takes it from 120-300mm f/2.8 all the way to 168-420mm f/4. For sports and wildlife photographers who shoot Nikon’s Z system, this feels like a dream come true. Congrats to everyone in the Nikon camp — you’re getting the integrated versatility a lot of us Canon shooters have been asking for.
What We Know So Far About the Nikon Lens
Nikon hasn’t released full specifications or pricing yet, but the development announcement highlights premium S-Line optics, strong Vibration Reduction, and a design focused on mobility for professional use. The built-in teleconverter is the headline feature, following the successful approach they used in their 400mm f/2.8 TC and 600mm f/4 TC primes. That switchable reach without swapping accessories changes the workflow completely.
I’ve used the Canon RF 100-300mm f/2.8 with both the 1.4x and 2x extenders many times. The image quality holds up surprisingly well, especially with the 1.4x, but it’s never as seamless as I’d like. Attaching the extender takes a moment, you have to be careful in dusty or rainy conditions, and there’s always a tiny trade-off in autofocus speed and handling. Nikon’s design promises to eliminate those frustrations. One lens, two ranges, smooth transitions.
How It Stacks Up Against the Canon
The Canon starts a bit wider at 100mm instead of 120mm, which can be handy for tighter framing. But the Nikon gives you that effortless jump to 420mm at f/4 without any extra gear. Weight-wise, the Canon comes in around 2.59–2.65 kg (roughly 5.7–5.8 lbs), which surprised a lot of people when it launched because it feels more manageable than its specs suggest. We don’t know the Nikon’s weight yet, but the internal TC mechanism will likely add some mass, so that will be one of the big questions.
Will Canon Ever Add a Built-in TC Version?
I’d say the chances are pretty low in the short term. Canon already has a strong, proven lens in the RF 100-300mm f/2.8, and their extender system works reliably for most users. Redesigning it from the ground up to incorporate an internal teleconverter would be expensive and time-consuming. Canon tends to move deliberately rather than rush responses to competitors.
That doesn’t mean it’s impossible. If the Nikon lens ships and generates overwhelmingly positive feedback from pros, Canon might eventually revisit the idea — perhaps in a future Mark II version or a specialized variant. They’ve explored variable teleconverters in patents before and they had the EF 200-400/4 with 1.4x built in converter, I still own it and it has collected dust the last 10 years, it’s too heavy to handhold a whole day in Africa.
Competition Like This Is Good for All of Us
Announcements like this push the whole industry forward. Nikon has delivered the feature many of us dreamed about, and that raises the bar for everyone. As someone who loves his Canon setup, I’m still keeping the RF 100-300mm f/2.8 close — it’s earned its place in my bag. But I’m genuinely happy for Nikon shooters who’ve been waiting for this kind of innovation.
What do you think? Would a built-in teleconverter make you consider switching systems, or is the Canon’s approach good enough for your needs? I’d love to hear from Nikon Z users especially as more details emerge later this year.
Stay sharp!