Sigma 14mm ART F1.8 VS Sigma 14-24mm F2.8 ART DG DN

Guys hope your all well.

So i been upgrading my gear with all Sigma ART. Just got the Sony A7R4!

So one last lens to buy is a SIGMA wide angle lens.

there are 3 options:

Sigma ART 12-24 F4 = around £900
Sigma ART 14-24 F2.8 = around £950
Sigma ART 14mm F1.8 = around £700 from a 2nd hand buyer! which is a crazzzzzzzzzzy price!!! they are usually £1200

Now, i like the variable zoom cause you can always go back and forth to focus for architecture. which i usually use for. Not so fussed with aperture!

But given the "Sigma ART 14mm F1.8 = around £700" is available for this price would it be ideal to get this lens than one from the others?

I was thinking of getting Sigma ART 14-24 F2.8 but now the dilemma I am finding myself with the value for the Sigma ART 14mm F1.8 at an unimaginable price LOL

Pls give me your opinion, even if it is brutally honest

cheers
Asif

I've been having the same thoughts recently.

I have the funds for either but, is a pricey 14mm at f1.8 enough to compare with a 14-24mm capable zoom lens @2.8. Which is 1 and 1/4 times darker.

I have a 24-70mm 2.8, so im leaning towards the prime. These types of exotic primes, have a special look to the resulting images.

Did you make a decision?