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Archive 2019 · Sigma 14-24mm f/2.8 DG DN first impressions

  
 
Stevvi
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p.46 #1 · Sigma 14-24mm f/2.8 DG DN first impressions


I could not agree more. I had the 14-24 G as well and although I had an „ok“ copy (I chose the best of 3 copies) it is from center to the corner nowhere near to the Sigma, if only then from 14-16 mm. Copy variation was another issue...

Bobu wrote:
I've tested several samples of the Sony 12-24 in the past. And none of these samples were in the corners as sharp as the Sigma. I would not recommend to exchange the Sigma against the Sony.

My Copy of the Sigma is (for an ultra-wide angle lens) rather flat field at infinity. But I haven't yet tested for FC at closer distances. That FC behavior changes with focus distance is not uncommon (the Zeiss 15mm is for example a lens were FC changes a lot over focus distance).





Dec 29, 2019 at 04:57 AM
docsmiles17
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p.46 #2 · Sigma 14-24mm f/2.8 DG DN first impressions


Bobu wrote:
Does anbody here has a good idea how to either safely remove the lower nose on the filter (is filing of 0.3mm glas possible without breaking it?) or slightly widen the lens slot (with wich tool)?



I have cut glass before where you score it and it breaks clean along the score. I don't know if this would be the same with a .3mm thin glass. I don't think I personally would try and alter the lens slot as you may wind up with a damaged lens or light leak.

If the filter will not fit, I would likely contact a glass cutter to advise what can be done, if anything.



Dec 29, 2019 at 04:06 PM
Matti6950
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p.46 #3 · Sigma 14-24mm f/2.8 DG DN first impressions


Was cloudy today until just before the sun was gonna go down under i quickly went out with Sigma 14-24mm. And best yet, one of the defence tower attractions in our city wich closes soon permanently was still open, and on top of it, orange sunset. Perfect situation to test this Sigma lens.

At 14mm, the lens is incredible sharp, i didnt take this for possible, especially wide open, with Roger Cicala always saying how hard UWA's are to design. Big win there. At 24mm wide open there is a bit of softness but not alarmingly so, sometimes at F5.6 too, but could be user error, i also have corner to corner sharp images at 19mm and 23mm (F5.6) wich where it matters to me. There is maximum a little tilt wide open at 24mm, the rest of the lens is perfect. Don't think i'm gonna send back, especially knowing perfect zooms don't exist.

This lens doesn't shame Gmaster lenses performance, at least equal, same for build quality. I had very high expections from this lens, as it's one of the reasons i left nikon (I love Sigma/tamron lens options like this, and it's simply ain't possible (native) on Nikon Z (and in future no garantee that it will be as good with reverse engineering). It was the big reason to go Sony. And this lens for me confirms my choice, what a gem! Nothing against nikon Z system, but i have to much pleasure in using lenses like this. I got in in black friday -10% (even cheaper slightly then DSLR lens), so i couldn't be happier, i'll do more test at 24mm, so see how good it is there, but i think it's no lemon (14-20mm is perfect), and stopped down, 24mm seem fine too.

I loved my nikon 20mm F1.8G lens, and apart from the weight, this lens beats it in almost everything (but mostly the capability of zooming). Colours are also very good, they've improved since Sigma 35mm art. Have had 0 signs of chromatic aberration yet! And that for UWA, i though there would be some faint signs, (but well controlled knowing Sigma) but this is even better.

For 1000 euro less then Gmaster it exceeded my expectations, perfect 'holy trinity' lens (UWA part). It's also much better in every single way then the nikon 14-24mm G (not a bad lens for it's time, but this lens, with E-mount optimized design is just waaay sharper (mostly less astigmatism), better at 24mm for sure, way less flare, less CA, i think less FC too, better build quality finish (there is play in nikon zoom and focus ring, not so with this Sigma, just as sturdy as Gmaster lens.




Dec 29, 2019 at 07:45 PM
dbehrens
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p.46 #4 · Sigma 14-24mm f/2.8 DG DN first impressions


Fred Miranda wrote:
I have a Lee Filters Polarizing Gel 19" x 12" (MFR PART #: R293F) that I cut to fit the rear slot. One can rotate the entire camera to get the desired polarizer effect and then crop the scene later. It's obviously not ideal but it works.


Fred
I'm assuming this is a circular polarizer. I'm wondering, since these are mirrorless cameras, how a linear gel would work?
Dave



Dec 29, 2019 at 08:47 PM
Fred Miranda
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p.46 #5 · Sigma 14-24mm f/2.8 DG DN first impressions


dbehrens wrote:
Fred
I'm assuming this is a circular polarizer. I'm wondering, since these are mirrorless cameras, how a linear gel would work?
Dave


The main problem that a linear polarizer can cause is cross polarization on other reflective surfaces such the mirror in SLRs. (film or digital)

With mirrorless bodies, it's not an issue at all. Linear or circular polarizers work exactly the same way.



Dec 30, 2019 at 01:56 AM
docsmiles17
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p.46 #6 · Sigma 14-24mm f/2.8 DG DN first impressions


Did some limited daytime test shooting of the sigma 14-24 f/2.8. First impressions are WOW. For a UWA, no field curvature and no distortion that I can see on a "normal" landscape scenery.

Edge to edge very sharp with sharpest at f/7.1 on my copy. Produces a very nice sunstar with little lens flare. The sony 16-35 f/2.8 actually produced more lens flare

Very happy with my purchase.....now figuring out filters.

I did comparison testing with the sony 16-35 f/2.8 and canon 16-35 f/4 with mc-11 if anyone is interested but I don't want to take away from the original topic




Dec 30, 2019 at 03:36 AM
gbinoz
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p.46 #7 · Sigma 14-24mm f/2.8 DG DN first impressions


docsmiles17 wrote:
Did some limited daytime test shooting of the sigma 14-24 f/2.8. First impressions are WOW. For a UWA, no field curvature and no distortion that I can see on a "normal" landscape scenery.

Edge to edge very sharp with sharpest at f/7.1 on my copy. Produces a very nice sunstar with little lens flare. The sony 16-35 f/2.8 actually produced more lens flare

Very happy with my purchase.....now figuring out filters.

I did comparison testing with the sony 16-35 f/2.8 and canon 16-35 f/4 with mc-11 if anyone is interested but I don't want to take away from the original topic



Comparison to the Sony 16-35 f/2.8 would be great.

gb.




Dec 30, 2019 at 05:41 AM
docsmiles17
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p.46 #8 · Sigma 14-24mm f/2.8 DG DN first impressions


gbinoz wrote:
Comparison to the Sony 16-35 f/2.8 would be great.

gb.


Here are the cliff notes as it compares to sigma:
sunstar and flare- the sony has a very slight better star with very slightly more defined and cleaner rays. The sony does have a bit more flare concentrated near the sunstar itself.

The sigma is noticeably sharper edge to edge at f/7.1 @ 16mm at infinity focus

The sony is more of 17mm when shooting at 16mm or the sigma is more of 15mm when shooting at 16mm(sigma is wider than sony).

Sony has slight barrel distortion at 16mm at infinity focus



Dec 30, 2019 at 08:41 PM
docsmiles17
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p.46 #9 · Sigma 14-24mm f/2.8 DG DN first impressions


Maybe another option for filters?? thickness??

they are still developing for a7r4 but have for a7r3 and will fit all E-mount lenses

https://stcoptics.com/en/clip_filter/







Dec 30, 2019 at 08:49 PM
Fred Miranda
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p.46 #10 · Sigma 14-24mm f/2.8 DG DN first impressions


docsmiles17 wrote:
Maybe another option for filters?? thickness??

they are still developing for a7r4 but have for a7r3 and will fit all E-mount lenses

https://stcoptics.com/en/clip_filter/


If you want the lens' field curvature to remain unchanged, this clip-on ND filter is the worse option with glass thickness of 1mm!
That's 10 times thicker than gel.



Dec 30, 2019 at 10:17 PM
docsmiles17
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p.46 #11 · Sigma 14-24mm f/2.8 DG DN first impressions


Fred Miranda wrote:
If you want the lens' field curvature to remain unchanged, this clip-on ND filter is the worse option with glass thickness of 1mm!
That's 10 times thicker than gel.


Yes, field curvature was my concern as I couldn't find the thickness. thanks for giving that info



Dec 30, 2019 at 11:44 PM
docsmiles17
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p.46 #12 · Sigma 14-24mm f/2.8 DG DN first impressions


Bobu wrote:
Here you can see the problem:

https://live.staticflickr.com/65535/49281684388_d20eb05cda_o.jpg

The Kase filter is on the left, the Haida on the right. The small lower nose is too thick for the slit on the lens. The Haida doesn't have this nose.
Sadly the Haida is 0.5mm thick, otherwise it would be perfect.


Received filter today

I got mine to fit, but took some time to figure out the proper angle. Initially I was trying the 45 degree angle per instructions with fingers and it wouldn't go in and thought there was no way this filter would fit the lens as it feels like your pushing something against a cement wall. 45 degree is the wrong angle. It requires a much smaller angle than that to insert properly.

I aligned the filter horizontal to the slot and used the rubber end of mechanical pencil to "hold" the filter and find the right angle. This angle is when the nose is resting against the slot and other end (Kase filter info on) is just above the silver mounting ring (roughly ˝ of the 45 as instructed). It doesnt really take any force or effort at all to slide in. Its all about the angle and not trying to muscle it in. Be patient and work the angle versus using more force. I can not hold the filter with my fingers to get the right angle as that angle is so close to mount ring (concerns me with actual field use).

It doesnt feel like it will go in and then, bam, it will slide right in quite easily but only once you have the right angle. I have been successful with each re-insertion (3X before writing this) and each time it becomes easier to find the right angle. I took some pics with filter fully in slot so you can see the insertion angle from different perspectives.

I can not stress enough how important the angle is versus the instinct to "muscle it in". You can not force this filter in. Not only will you fail at inserting it, you will risk breaking it. Once you have the right angle, it requires very little pressure for the filter to slide in.


I will field test it asap and report back.




















fully inserted and locked into position




Jan 02, 2020 at 10:41 PM
Fred Miranda
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p.46 #13 · Sigma 14-24mm f/2.8 DG DN first impressions


docsmiles17 wrote:
Received filter today

I got mine to fit, but took some time to figure out the proper angle. Initially I was trying the 45 degree angle per instructions with fingers and it wouldn't go in and thought there was no way this filter would fit the lens as it feels like your pushing something against a cement wall. 45 degree is the wrong angle. It requires a much smaller angle than that to insert properly.

I aligned the filter horizontal to the slot and used the rubber end of mechanical pencil to "hold" the filter and find the right angle. This angle
...Show more

Nice!
I just ordered the 6-stop Kase and will test it against the Aurora when I get them.

The differential for the Aurora version is that it'll have magnetic connection which should be a big plus when switching filters in the field. One section is always on the lens and the other attaches magnetically to it.

This is the best ultra wide lens I've ever had. It's even better than any of my primes in the range.



Jan 03, 2020 at 01:14 AM
rvh23
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p.46 #14 · Sigma 14-24mm f/2.8 DG DN first impressions


Fred Miranda wrote:
This is the best ultra wide lens I've ever had. It's even better than any of my primes in the range.


Totally agree. The IQ it produces is as good as I'll ever need, even for very large prints. My quest for better UWA lenses is finally over.



Jan 03, 2020 at 03:56 AM
Bobu
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p.46 #15 · Sigma 14-24mm f/2.8 DG DN first impressions


docsmiles17 wrote:
Received filter today

I got mine to fit, but took some time to figure out the proper angle. Initially I was trying the 45 degree angle per instructions with fingers and it wouldn't go in and thought there was no way this filter would fit the lens as it feels like your pushing something against a cement wall. 45 degree is the wrong angle. It requires a much smaller angle than that to insert properly.

I aligned the filter horizontal to the slot and used the rubber end of mechanical pencil to "hold" the filter and find the right angle. This angle
...Show more

Thanks for the detailled description. I tried it again today with the exact same angle as you used (and countless other angles): absolutely no chance to get the filter in the slot in my lens. Really frustrating.

But today I found out that I know one of the Kase filters ambassadors personally and contacted her and got a name and contact data from someone at Kase filters with whom I can further discuss the topic.



Jan 03, 2020 at 03:15 PM
docsmiles17
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p.46 #16 · Sigma 14-24mm f/2.8 DG DN first impressions


Fred Miranda wrote:
Nice!
I just ordered the 6-stop Kase and will test it against the Aurora when I get them.

The differential for the Aurora version is that it'll have magnetic connection which should be a big plus when switching filters in the field. One section is always on the lens and the other attaches magnetically to it.

This is the best ultra wide lens I've ever had. It's even better than any of my primes in the range.


---------------------------------------------

Bobu wrote:
Thanks for the detailled description. I tried it again today with the exact same angle as you used (and countless other angles): absolutely no chance to get the filter in the slot in my lens. Really frustrating.

But today I found out that I know one of the Kase filters ambassadors personally and contacted her and got a name and contact data from someone at Kase filters with whom I can further discuss the topic.


I would be interested in hearing what Kase has to say. I would be interested in knowing how they handle/insert the filter in the field quickly and if they use their fingers or an instrument. Keep me (us) updated.

FWIW, each time I insert the filter, there is no feedback I get from the filter knowing whether or not I am close to the angle needed, even knowing that the filter WILL fit. You don't feel like "its almost there or its close" If you do try again, error on angles closer to and including 0 (horizontal).



Jan 03, 2020 at 11:09 PM
waterden
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p.46 #17 · Sigma 14-24mm f/2.8 DG DN first impressions


I am afraid that, no matter how brilliant this lens is, I simply cannot imagine using it for landscape photography because of the filter problem. I use graduated Lee ND filters rotated to an appropriate angle and inserted by an appropriate amount, as well as a polariser. This is impossible on lenses such as this with protruding bulb elements and put them out of court for me. The only exception I have made is for the Voigtlander 15/4.5 but I do not consider this a landscape lens so am not bothered by the filter issue. I shall continue to be well served for landscape use with a minimum 16mm focal length.


Jan 04, 2020 at 11:56 AM
alexands
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p.46 #18 · Sigma 14-24mm f/2.8 DG DN first impressions


The aurora rear filters will be available in March according to Aurora sales.


Jan 05, 2020 at 12:39 PM
Fred Miranda
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p.46 #19 · Sigma 14-24mm f/2.8 DG DN first impressions


alexands wrote:
The aurora rear filters will be available in March according to Aurora sales.


This is true. Timeframe for release changed from January to March.
This is due to Aurora adding the magnetic feature to their filters. It has to be tested and perhaps adjusted before final release.



Jan 05, 2020 at 12:56 PM
alexands
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p.46 #20 · Sigma 14-24mm f/2.8 DG DN first impressions


The magnetic feature sounds like it will be helpful.

In the meantime I ordered a Lee filter GEL 20X24 .9ND (3 STOP) 211 filter from a local camera store and a Rosco E-Colour #299 1.2 Neutral Density (21 x 24" Sheet) from B&H (I'm assuming the Rosco gel is equivalent to the Lee gel but please correct me if I am wrong).



Jan 05, 2020 at 01:33 PM
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