Dissapointed with the Laowa 12 2.8 slowlyness & launchprice, what now, Irix 15 f2.4 ?

I sold my Canon 16-35 f4L IS a few months ago, just on time to get a decent price.
I planned to buy the Venus optics 12 2.8, for having wider & faster, but after the kickstart stuff it doesn't seem to launch
And the launch price is way too high for a manual focus lens

My friend has the Samyang 14 2.8 with moustache distortion, but the price is fair for a manual lens.

I saw Samyang is going to bring out a 14 2.4 premium, don't know if there is a launch price known yet.
https://www.dpreview.c​om …ang-premium-mf-lens-range

What do you think about that Irix 15 2.4, any good, or any other fast wide alternative wide-angles recommended ?

Out of curiosity, why do you need the extra stop of speed on something this ultrawide?

Very best,

12mm and 14mm lenses are not manual focus lenses. They are no-focus lenses. Just to prove a point, I my Rokinon 14mm f/2.8 for several hours last (2015) summer, without touching the focus. If you need AF on a lens this wide, you are not using it properly.

Well f2.8 is for everything handy, I work mostly in (very) dark conditions, not always on tripod.
Like partyshoots in a dark club, urban shoots in dark buildings (this on tripod, but f2.8 focuses faster) and I want to test startrails and f2.8 is also recommended.

I like to have wider than my previous 16-35 f4L IS for architecture also after seeing this
https://www.flickr.com …2/sets/72157664​200113000/

Wider & faster is always interesting for different types of photography.

MalVeauX wrote in post #18211321
Out of curiosity, why do you need the extra stop of speed on something this ultrawide?

Very best,

f2.8 won't focus any faster if you're doing it manually...star trails don't really need a fast lens, because you are keeping the shutter open longer intentionally to get the trail...

i've never heard anything about this 15mm you're asking about...when will the 12mm ship?

I visited the Irix booth on Photokina, their lenses look good. But we need to see first tests and user exoerience. And we need to wait a year and so some search to see how the build quality is.
Samyang did not have their premium 85mm/1.2 ready back then.
Aside form the crazy distortion the mechanical build quality / quality control is much more my concern with their lenses. So an improvement there would be more interessting for me.

DreDaze wrote in post #18212092
f2.8 won't focus any faster if you're doing it manually...star trails don't really need a fast lens, because you are keeping the shutter open longer intentionally to get the trail.....

With a faster lens you get more stars which many photographers like much.

I can sure manual focus faster with a faster lens in low light because I can see what I am focusing better

What about a Sigma 20/1.4 ?
If you want wider, then the Zeiss ZE 15/2.8 is arguably the best, but you get what you pay for.