Return of the Crop King, but only for RF? (Sigma 17-40 f1.8)

[Al Dolega]

https://www.canonrumors.com/canon-aps-c-shooters-rejoice-sigma-to-launch-the-rf-17-40mm-f-1-8-and-rf-12mm-f-1-4/

Remember those like 5 years where everyone had the 18-35mm f1.8? Seems like this would be the successor.

Full frame is of course dominant now, so this wouldn't be as omnipresent as the 18-35, but could still be a very popular choice, at least if it comes to other mounts too.

[Andrew Reid]

I will take a Sigma 17-40mm F1.8 for my Fuji X-Pro3 thank you.

[Al Dolega]

Looks like E, X, L, RF. I would assume Z too?

[MrSMW]

Really great focal range for me, but I don’t have any APSC cameras.

Interesting though…especially if I do move over to Sony next year because on an FX30 body, that would be a very neat pairing for my needs…

[ND64]

6 hours ago, Al Dolega said:

I would assume Z too?

No Z for now. Sigma is not much interested to work with Nikon, for whatever reason. 

[BTM_Pix]

Not sure what the situation is with Sigma and the Z mount.

They do three of their fast compact APS-C primes in Z mount but not the zooms or full frame.

They do more in RF mount but, again, no full frame.

You could speculate that pressure from both their L mount partners and their sensor supplier keeps them out of supplying the big two with full frame lenses.

In the case of Nikon it’s a bit moot as with the Megadap you can just buy the e-mount versions anyway and have them as near as dammit native anyway.

[ntblowz]

Curious about the size of 17-40mm 1.8, if it is still similar to 18-35mm I think the FF 28-70/24-60 2.8 will be a better choice for smaller size/weight.

[Framed_By_Dan]

I'd honestly love a 17-40mm f1.8 in L mount for sake of the crop in 4K50 on the S1. As long as it's not a behemoth.

[ND64]

3 hours ago, Framed_By_Dan said:

As long as it's not a behemoth.

Its not

[Emanuel]

I will probably add this one to come now when I have a 16-300mm f/3.5-6.7 [tiptop AF & breathing as well 6-stops @16mm & 4.5-stops @300mm stabilization performance*] for day light, paid last Thursday and scheduled to just arrive by this June 2...

*These tests serve as example why new releases can bring a whole difference working out as useful add-on to your arsenal... A bit more of love spread wherever fits wouldn't hurt ; ) No use of primes match the resource of zoom lenses and how handy they are. Fast glass is not everything in life, even though their blesses I also stand as irresistible indeed. Go figure to couple a lightweight zoom range like this one is.

[Marcio Kabke Pinheiro]

As the Sigma 18-50 f/2.8 is almost glued to my X-S20, this one get my interest for sure.

[Emanuel]

Landed, my friends... :- )

https://www.the-digital-picture.com/Reviews/Sigma-17-40mm-F1-8-DC-Art-Lens.aspx

 

[MrSMW]

On 5/31/2025 at 10:26 PM, Emanuel said:

No use of primes match the resource of zoom lenses and how handy they are

There’s a truth in that and every time I try a prime again, it’s pretty much straight back to a zoom.

I recently invested in a set of Panny L Mount f1.8 primes and though I like the 50, the 18 is just too wide and I’m just not using the 85.

So it’s back to the 28-70 f2.8, probably keeping the 50 as I do need something as I have ‘stolen’ back the 28-70 from one of my statics.

The 18 and 85 I reckon I just need to sell but most likely trade for the Sigma 28-45mm f1.8 because for indoor work and my needs, I can’t see past it.

I did look at this new 17-40, but no dice as I’m not going back to 4k crop when for the last 2 years, I’ve been shooting full frame 6k open gate.