Reviews Sony 18-135mm F35-56 Oss Aps-c E-mount Zoom Lens
Does the Sigma eighteen-50mm DC DN have that AF-Due south issue?
A few months ago I bought the Sigma 30mm f/one.four but returned information technology to Amazon after I noticed that it had some autofocus problems. When using AF-S, focus would merely fail sometimes, fifty-fifty though my A6000 told me that focus had been acquired. This is a known issue, discussed repeatedly on this forum, and Sigma even confirmed this issue with me in eastward-mail:
Sigma Japan have confirmed they are enlightened of this consequence and have stated that this is the aforementioned for some Sony lenses also. At the moment it is the characteristics of the lens notwithstanding they volition continuously brand an effort to improve the system. It should piece of work fine if you lot fix the AF mode to AFC.
Does anyone know whether the new Sigma 18-50mm f/2.8 lens has this AF-S upshot? I did ask Sigma past eastward-post, and they gave me this reply:
Sigma Nippon have said that the xviii-50mm F2.8 should non accept whatever issues and the performance of this lens is very skilful and retrieve you will be satisfied with it.
However, information technology is possible that they but haven't encountered the problem yet, then I thought I'd ask you guys.
matttelz • Regular Member • Posts: 180
Re: Does the Sigma xviii-50mm DC DN have that AF-S issue?
one
Not sure nigh the 18-50 only I tin can ostend the 30mm has this event. It's super annoying and it's the worst on the a6000 considering I cannot use heart detect in AF-C mode so basically I just accept to use pocket-size flexible spot and striking the eye...hopefully. If you're using 1.4 for portraits and stuff, AF-C is really the merely way to become.
Honestly, I feel the 56mm is the same fashion. I find at i.iv information technology hits more ofttimes in AF-C mode...and then basically AF-C is the way to go for me with my Sigma trio and my A6000. I'm not sure if the 6400 or 6600 has this aforementioned issue.
Canon EOS 1100D Sony a6000 Sony Eastward xvi-50mm F3.five-5.6 PZ OSS Sigma 60mm F2.8 DN Art Sigma 30mm F1.4 (Due east/EF-M mounts) +1 more than
Re: Does the Sigma eighteen-50mm DC DN accept that AF-S effect?
matttelz wrote:
Not sure about the 18-50 just I tin can confirm the 30mm has this consequence. Information technology'southward super abrasive and it's the worst on the a6000 considering I cannot use eye detect in AF-C mode so basically I just accept to use pocket-sized flexible spot and hit the eye...hopefully. If yous're using 1.4 for portraits and stuff, AF-C is actually the merely manner to become.
Honestly, I experience the 56mm is the same way. I find at 1.four information technology hits more often in AF-C mode...and so basically AF-C is the way to become for me with my Sigma trio and my A6000. I'm non sure if the 6400 or 6600 has this same issue.
People say that the Sigma 16mm f/1.4 has the same issue too.
Sigma blames it on the camera bodies and says that some Sony lenses as well reproduce this issue. Some people claim that the Sony 50mm f/1.8 OSS has this issue, just I've taken tens of thousands of photos with this lens and I haven't noticed a unmarried misfocus except for cases that were obviously my error.
dgsjsj • Regular Member • Posts: 460
Re: Does the Sigma 18-50mm DC DN have that AF-S outcome?
one
My Sony a6000 with a Sigma 16mm F1.4 DC DN lens had autofocus errors but at aperture 2.5
with Sigma 56mm F1.4 DC at discontinuity 2.0
I did not find such errors with the Sony a6100 camera.
The zoom in question does not have these discontinuity values.
There are two groups of owners of this zoom on Flicker and no one has opened discussions due to autofocus errors still.
https://www.flickr.com/groups/14770363@N24/pool/
https://www.flickr.com/groups/14781178@N20/pool/
Sony a6100 Sigma 16mm F1.4 DC DN (E/EF-M mounts) Sigma 56mm F1.4 DC DN | C (X-mountain) Sigma 35mm F2 DG DN +5 more
Martin_99 • Senior Member • Posts: 3,061
Re: Does the Sigma eighteen-50mm DC DN accept that AF-S outcome?
earth_captured wrote:
A few months ago I bought the Sigma 30mm f/1.4 but returned information technology to Amazon subsequently I noticed that it had some autofocus issues. When using AF-Southward, focus would just neglect sometimes, even though my A6000 told me that focus had been acquired. This is a known issue, discussed repeatedly on this forum, and Sigma even confirmed this issue with me in email:
Sigma Japan accept confirmed they are enlightened of this upshot and accept stated that this is the same for some Sony lenses also. At the moment it is the characteristics of the lens withal they will continuously make an effort to improve the system. It should work fine if you lot ready the AF mode to AFC.
Does anyone know whether the new Sigma xviii-50mm f/ii.8 lens has this AF-S issue? I did ask Sigma by email, and they gave me this reply:
Sigma Japan accept said that the 18-50mm F2.8 should not have any bug and the performance of this lens is very good and think you will be satisfied with it.
However, it is possible that they just haven't encountered the problem nonetheless, so I thought I'd ask y'all guys.
Did yous try to employ only AF-C? I shoot this manner since A6000 (long agone my beginning Sigma lens, use A6400 at present), without ussues.
In general, if you lot think about it, it'south simply relic from the past. Why should exist two AF modes - for static and moving subjects?
I use my Sigma 18-50 very often at present, only can't responce to your question directly, as I don't employ AF-S at all...
Sony a6400 Sony Carl Zeiss Sonnar T* Eastward 24mm F1.8 ZA Sony Due east xviii-135mm F3.5-five.6 OSS Sigma 56mm F1.4 DC DN | C (Ten-mount) Sony E lxx-350mm F4.5-6.3 K OSS +2 more
Re: Does the Sigma eighteen-50mm DC DN have that AF-Due south result?
Martin_99 wrote:
Did you try to use only AF-C? I shoot this fashion since A6000 (long ago my kickoff Sigma lens, utilise A6400 at present), without ussues.
In full general, if yous think virtually it, it's just relic from the by. Why should exist ii AF modes - for static and moving subjects?
No, I've never really tried that. I prefer AF-S for static subjects because there are some advantages:
- From what I've read, AF-S has the potential to be slightly more accurate since it starts with PDAF (fast merely less accurate) and and then finishes with CDAF (slow but more than accurate). AF-C uses merely PDAF.
- With AF-S, I can "focus and recompose" without using back-push autofocus (which I don't really like).
- AF-Due south might use less battery than AF-C.
Though AF-C has its own advantages, of course.
I utilize my Sigma eighteen-50 very ofttimes at present, merely can't responce to your question directly, as I don't use AF-South at all...
Practise you mind me request how you're getting on with the lens? I remember y'all maxim you bought it a few months ago. Exercise you still recommend information technology? 🙂
Martin_99 • Senior Member • Posts: three,061
Re: Does the Sigma 18-50mm DC DN have that AF-South issue?
earth_captured wrote:
Martin_99 wrote:
Did y'all try to utilise only AF-C? I shoot this way since A6000 (long agone my first Sigma lens, use A6400 now), without ussues.
In general, if you recall about it, it'southward simply relic from the past. Why should be two AF modes - for static and moving subjects?
No, I've never really tried that. I prefer AF-S for static subjects because there are some advantages:
- From what I've read, AF-S has the potential to be slightly more than accurate since information technology starts with PDAF (fast but less accurate) then finishes with CDAF (slow just more accurate). AF-C uses only PDAF.
I'm not experiencing out of focus photos with AF-C at all (excluding my faults). Non certain how camera could practice AF better. And then peradventure this information is not relevant with new bodies.
Too f2.8 zoom is not and then demanding on AF accuracy as f1.4 prime, and then perchance this is not event at all with Sigma 18-50.
- With AF-S, I can "focus and recompose" without using dorsum-button autofocus (which I don't actually like).
I practise focus and recompose without back button using AF-C (only tracking AF-C - A6400). Just employ smallest AF signal, which I take allways in center and recompose. AF will keep this area in focus, regardless if static of moving.
- AF-S might use less battery than AF-C.
I would guess, that this is but your supposition Even if true, the difference would exist probably unnoticeable to user.
Though AF-C has its own advantages, of form.
I use my Sigma 18-50 very often now, simply can't responce to your question directly, equally I don't use AF-South at all...
Do you mind me asking how yous're getting on with the lens? I call back you lot saying you bought it a few months ago. Practice y'all withal recommend it? 🙂
Yes, recommended! This is my get-go f2.8 zoom. Information technology provide really overnice flexibility. In case of Sigma, in compact bundle. If I would make some critique, it would be contrary zoom direction. Missing 16mm and OSS is understandable due to given size/weight. Everything else is great for my usage.
Sony a6400 Sony Carl Zeiss Sonnar T* E 24mm F1.8 ZA Sony E 18-135mm F3.five-5.6 OSS Sigma 56mm F1.4 DC DN | C (Ten-mountain) Sony E 70-350mm F4.5-6.3 Thousand OSS +2 more
Re: Does the Sigma 18-50mm DC DN accept that AF-S upshot?
Martin_99 wrote:
Practice you mind me asking how you lot're getting on with the lens? I call up yous proverb you bought it a few months agone. Do you nevertheless recommend it? 🙂
Yes, recommended! This is my first f2.8 zoom. Information technology provide really nice flexibility. In case of Sigma, in compact package. If I would make some critique, it would be opposite zoom direction. Missing 16mm and OSS is understandable due to given size/weight. Everything else is great for my usage.
Great, cheers! Is chromatic aberration pretty well controlled, would you lot say? I've been using the kit lens (Sony 16-50mm f/three.5-5.6) lately and, although it's fairly sharp at f/8, chromatic aberration is pretty bad with tree branches against the sky. If I increase saturation in Lightroom, the expanse around the branches turns very blueish and looks ugly.
Martin_99 • Senior Member • Posts: 3,061
Re: Does the Sigma 18-50mm DC DN take that AF-Southward issue?
earth_captured wrote:
Martin_99 wrote:
Practise you mind me asking how you're getting on with the lens? I call back you saying you bought it a few months ago. Do you nonetheless recommend it? 🙂
Yes, recommended! This is my start f2.viii zoom. It provide really overnice flexibility. In case of Sigma, in compact package. If I would make some critique, it would be opposite zoom direction. Missing 16mm and OSS is understandable due to given size/weight. Everything else is not bad for my usage.
Neat, thanks! Is chromatic aberration pretty well controlled, would you say? I've been using the kit lens (Sony 16-50mm f/3.5-5.6) lately and, although it's fairly sharp at f/8, chromatic abnormality is pretty bad with tree branches against the sky. If I increase saturation in Lightroom, the surface area around the branches turns very blue and looks ugly.
It'south not piece of cake to say without direct comparison. Probably better to check exam sites, which exam it on regular basis.
My personal impression is, that chromatic aberation on Sigma 18-50 is above average. Better than Sony eighteen-135 or Sony 24f1.8, but worse than Sigma 56f1.four. But not really tested information technology.
Sony a6400 Sony Carl Zeiss Sonnar T* East 24mm F1.eight ZA Sony E xviii-135mm F3.5-5.6 OSS Sigma 56mm F1.4 DC DN | C (X-mount) Sony Due east 70-350mm F4.v-6.3 Thou OSS +ii more than
Foto4x4 • Veteran Fellow member • Posts: 3,817
Re: Does the Sigma 18-50mm DC DN have that AF-S issue?
earth_captured wrote:
A few months ago I bought the Sigma 30mm f/1.4 merely returned information technology to Amazon after I noticed that it had some autofocus issues. When using AF-S, focus would just neglect sometimes, even though my A6000 told me that focus had been acquired. This is a known issue, discussed repeatedly on this forum, and Sigma even confirmed this upshot with me in e-mail:
Sigma Japan have confirmed they are aware of this issue and have stated that this is the same for some Sony lenses also. At the moment information technology is the characteristics of the lens still they will continuously brand an effort to ameliorate the system. It should work fine if you gear up the AF mode to AFC.
Does anyone know whether the new Sigma 18-50mm f/2.viii lens has this AF-S consequence? I did ask Sigma past email, and they gave me this reply:
Sigma Japan have said that the xviii-50mm F2.8 should non have any issues and the performance of this lens is very adept and think you will be satisfied with it.
However, it is possible that they simply oasis't encountered the trouble notwithstanding, so I thought I'd ask you guys.
Late in on this. I've had my Sigma 18-50/f2.8 for a month now and information technology's a terrific little lens. Abrupt throughtout the range even at f2.8 though does get even ameliorate in the f4-five.six discontinuity. Never had any focus issues in either AF-S or AF-C. Though I am using an A6400 and don't have an A6000 to attempt on. I highly recommend the lens for APS-C users.
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Thank you, John
Sony RX100 6 Sony a7R Iii Sony a6400 Sony a7R IV Sony 50mm F2.8 Macro +13 more
Source: https://www.dpreview.com/forums/thread/4639453
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