Finaly a review that is using that lens to shoot some Stars! Great work Chris and Jordan. You are making this Channel shine bright like a star.

All of a sudden, the L-mount has become a very appealing option. With Sigma’s line-up and Panasonic’s announcement to focus from now on enthusiasts and professional photographers and videomakers, there’s a great opportunity to enter full-frame class without breaking the bank. Today, S5, S1, S1R and SL type 601 cameras are available in mint pre-owned condition at an incredible low price point. Each of these cameras are excellent in their own realm.

I've been using the Sigma 14-24 f2.8 for landscape and astro. This 20mm f1.4 is very attractive and tempting to add to my kit. I love the locking on the manual focus.

I'm really loving these sigma prime lens reviews. Great job guys.

Chris you should admit that you are in love with sigma FpL… like you work guys keep it up

Thank you very much for the great review and making the effort for the various shooting conditions. Also VERY much appreciate shooting Sigma on Sigma. Great job, gents.

That is actually impressive in the corners! I did not expect that, honestly... Sigma had a history of trash corners with their DSLR-mount 24 and 20mm f/1.4. The latter in particular was massive, despite being almost useless for wide-open astrophotography work. The point is, well, points of light look pretty dang good from this smaller and lighter lens, especially in the corners! Well done, Sigma. From my casual assessment, it looks like this lens does indeed beat the Sony for astro-landscape work. The Sony is troubled by both field curvature and softness in the corners, plus a bit of coma/astigmatism. I suspect that when this Sigma hits f/1.8 or f/2, it is truly significantly better. The only other lens I can imagine coming close or being "preferable" (for some) might be a Roki-Yang 20mm f/1.8 or 18mm f/1.8. If such a lens offered sharpness on par with the excellent AF 24mm f/1.8 FE, I'd be sold for lightweight backpacking use. For "roadside" use or any hike where weight/size isn't as much of a concern, though, this looks like a winner.

Appreciate your positivity and hard work man. Can't wait to get out and play with a few Art primes I picked up today :)

Sigma keeps making banger lenses one after the other. The controls on the body are a very nice addition

I bought one of these beauties came yesterday. These reviews really make the difference.Great work happy shooting.😄

Waiting for this review 😀... Thanks nick 👍

Thanks. I love the 20mm focal length. This could be my Aurora Holy Grail lens. I've been searching for a fast 20mm (at least f/1.8) for 2+ decades that would work for me. Pretty much tried them all I think. Latest try was the Sony 20 f/1.8 and my copy wasn't at all good with coma (but it appeared as good or better than someone on-line reviews 🤷🏻‍♂️) so I sent it back. I've pre-ordered a Sigma to try. Fingers crossed. Currently using the Sony 24 f/1.4 and 14 f/1.8 for auroras, mostly for panos but the 14 for occasional 1 frame shots (gotta crop out the corners tho 🤦🏻‍♂️).

Just bought one for my S5. Can't wait, thanks!!!

Another winner lens from Sigma

Hurray! Star tests, the most severe test of any lens. Thanks! Now put it on a Star Adventurer tracker that The Camera Store is now selling. That would be an interesting combination with the Sigma FpL camera. Clear skies!

Same sort of impressions were given by @nebulaphotos in terms of astrophotography. Panasonic is now a really viable platform for widefield landscape astrophotography with these lenses.

a comparison to the old 20mm would be very interesting.

Great review-- thanks!

at this point, i would think for uwa it would be good to know the t-stop. corrections in iq sometimes take some light out and make a f1.4 a (just an example) t1.8. that would help choose between this and the sony 1.8

All the Sigma Art I fixed lens tired are excellent for astrophotography. The images are usable out of camera. And it's fast enough that you don't need a tracking mount. A simple tripod is enough.

1:34 really caught my attention. I thought my mouse cursor accidentally freaked out!

if sigma released smaller versions of their 28 and 40 I would switch to sony tomorrow

Nice Astro shots. Going the extra mm. Yada yada yada aberration

Hi, I need a wide angle lens to go with my d750 mostly landscape. Wondering anyone tell me shall I get this sigma 20mm 1.4 or Nikon 16-35mm f4 vr. Thanks in advance

The worst thing about this lens is the limited lens mount availability. Hopefully they add Nikon Z at some point. I do have an adapter, but I’d rather have native mount. It looks like a fabulous Astro lens.

Can you take the hood off so you can put a matte box on

Looks like a better deal than the new 24mm.

Can you do a review of the Sigma 16-28mm f2.8 for astrophotography, compared to the 20mm f1.4?

But which one is sharper, this Sigma or the Sony 20 1.8?

This was a great video. I have also decided ask for help, on a camera. Canon eos 80d, Canon eos m50 mark 2, Canon SL3, or Canon T8i ??? Can anyone please help.

How do you focus on stars with this lens?

Why didn't you both review the E Mount version..

🔥🔥

would you say the 20mm is better than the 24mm 1.4 from sigma?

For which mount is it?

would have this for rf mount -.-

This vs the Sigma 35mm f1.2 A?

Canon version is coming?

Why do people hate focus breathing so much?

When is the R10 review coming?

Interesting lens

Weather sealed?

Chris continues to conflate focal length and angle-of-view when discussing breathing.

If I don't already own the Sony 20mm, this would be my choice.

Привет из России ❤ Спасибо за звёзды 💫20 мм /1.4 👌

I already have the Sony 1.8 but I see a guy selling this lens for only $300

A wide angle lens like that is BEGGING for a "vlogging" section, which is kinda missing here. Otherwise a great review as always. The only issue I have with all reviewing channels is putting "bokeh" and "depth of field" in the same basket. Most modern bright lenses have spades of depth of field, but have almost no bokeh. I treat bokeh as the character of the out of focus rendering. Usually when speaking about modern, clinical, corrected, smooth, creamy, buttery lenses, it translates to boring and artificially blured in my book.This lens has a tiny itsy bitsy amount of bokeh in its out of focus areas, which makes it even more tempting for vlogging or even super wide portraits. It's nice to see specular highlights shown in the video, but there's way too little context in all of those pictures to get a good image of what the background looks e.g. when shooting a super wide portrait against a bush/tree on a bright daylight - which would be the ultimate bokeh test in my book.

Sorry but the Nikon new 20mm f/1.8 Z is the absolute heat. Lighter, sharper and priced the same. Nikon Z lenses are on another level. Im a huge Art fanboy, but man them Z lenses make you feel like you are having an affair with Jessica Alba. JMHO.

Little bit of LoCA? It's rather all over the place on those guitar strings.

3:48 Even at F/2.8 (you forgot the division sign btw) you can already see sunstars appearing. Did you miss that in your review? Sure the bokeh itself might be nice, but what happens around those bubbles is very undesirable.

It's funny to see how you, "lenses testers", have raised your expectations about lenses sharpness. This 20mm is on the chart an amazing performer... at f1.4 !!!! Don't forget all the yesterday lenses that gave mediocre results at f2.8 !

You're really getting tired of explaining what LoCA is to people, aren't you?

What is a Noct? You give the weight in grams. You give the weight in lbs. What is a Noct and who uses that measure? You? Personal measuremect. Do you have a full size Noct stored in Paris at the International Bureau of Weights and Measures and made of Platinum...so it can be compared to at any time to get full scientific accurate?

Get either the Sony 20mm 1.8 G or the Voigtländer Nokton 21mm 1.4, I have had a 20mm Lens for many years, to me it is not the "right" focal length for still Photography, I have not used the 20mm for more than 2 years, my wide angle Lenses are Sony 14mm 1.8 GM, Sony 24mm 1.4 GM and Voigtländer APO-Lanthar 35mm 2.0 Aspherical.

Sigma don't give a shit about videographers with this breathing..

If Sigma can catchup with sony's autofocus and oversampling then they would be a contender. They need to prioritize these features and probably abandon this small factor style because it only makes the camera body less ergonomic and non weather sealed.

Where is the Nikon version? Come on Nikon, open up the mount like Sony. Has it hurt Sony?

Why on earth would you test a lens on a camera nobody owns?

Your sharpness tests are awfull. Not enough zoom.