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3rd party lens for video that focus correctly

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Dave18 View Drop Down
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Post Options Post Options   Quote Dave18 Quote  Post ReplyReply Direct Link To This Post Topic: 3rd party lens for video that focus correctly
    Posted: 11 January 2021 at 11:43
I've been looking at e-mount lens from Tamron and Sigma for video use I have read reports that these lens focus ok for stills photography but not for video.
Does anyone use Tamson /Sigma lens for video that work well with the AF or should I stick to native Sony glass?
Problem is the 24-70 2.8 G master is so expensive compared to the Tamron 28-75 2.8
Thanks
Dave
Sony A7RII, A900, A99 x2, A77II, A580, A200, ZA 135 1.8,tam 28-75 2.8, sig 35 art Tokina 11-16mm, Sigma 70-200 2.8 HSM OS, sony 16-50 2.8 ssm http://www.cornwall-wedding-photographer.co.uk
 



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Wētāpunga View Drop Down
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Post Options Post Options   Quote Wētāpunga Quote  Post ReplyReply Direct Link To This Post Posted: 12 January 2021 at 08:35
Hi

I have only used my lenses for video, but I did make some videos last year with a professional videographer. He had a set of Sigma Prime Art lenses for the E-mount he was very happy with. That suggests Sigma is a viable alternative
a77ii- Sony 135/2.8 STF, 16-50/2.8, 70-200/2.8 G
a7riii- Voigtländer 15/4.5, Zeiss Loxia 21/2.8, 35/2, 50/2, 85/2.4, Batis 85/1.8, Voigtländer 110/2.5, Sony 24-105/4 G, Sigma 100-400 f5-6.3.
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Miranda F View Drop Down
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Post Options Post Options   Quote Miranda F Quote  Post ReplyReply Direct Link To This Post Posted: 12 January 2021 at 13:17
I see there is a SOny E-mount video lens which doesn't appear in the database.
SOny 18-105mm PZ
Appears to be APS-C on E.
Never seen one in the metal but currently on sale s/h on CEx at £330.
Miranda F & Sensorex, Sony A7Rii, A58, Nex-6, Dynax 4, 5, 60, 500si/600si/700si/800si, various Sony & Minolta lenses, several Tamrons, lots of MF primes and *far* too many old film cameras ...
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QuietOC View Drop Down
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Post Options Post Options   Quote QuietOC Quote  Post ReplyReply Direct Link To This Post Posted: 12 January 2021 at 13:34
Originally posted by Miranda F Miranda F wrote:

I see there is a SOny E-mount video lens which doesn't appear in the database.
SOny 18-105mm PZ
Appears to be APS-C on E.
Never seen one in the metal but currently on sale s/h on CEx at £330.

It is in the database. That is the kit zoom for the E-mount Super-35 camcorders, but plenty of APS-C stills camera users have used it. Sony also has a newer 18-110 cinema version. The Sony FE PZ 28-135mm F4 OSS is the full-frame version.

The Sony FE 24-105mm F4 G OSS is pretty good for video. It is fairly parfocal with little focus breathing, with good stabilization and quiet focusing.

Edited by QuietOC - 12 January 2021 at 13:42
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Pentax Q7 5-15 15-45/2.8 8.5/1.9 11.5/9 AF-P/Q
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addy landzaat View Drop Down
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Post Options Post Options   Quote addy landzaat Quote  Post ReplyReply Direct Link To This Post Posted: 12 January 2021 at 18:26
It seems the Tamron 28-75/2.8 had some problems that are fixed with firmware 2.

Dustin Abbot mentioned in his review:
"Unfortunately for Tamron, a few early reviewers discovered a minor focus quirk in video AF mode under a very specific set of circumstances, and, in typical YouTube fashion, I began to hear from everyone about the “broken autofocus” on the lens. I found this somewhat ridiculous, as I actually had a copy of the lens myself and was just nailing shot after shot. I had already filmed a whole 20+ minute episode (my Sony a73 review) with the lens, and the AF tracked my face literally perfectly the whole review. I’ve used the lens a fair bit on a gimbal as well for some video work, and had no issue that I could point to. I was unable to recreate this “major issue” no matter how I tried. I’m not doubting that at least someone encountered it (as Tamron immediately began working on a firmware fix), but I doubt it was ever a serious issue."

Also, in this thread on DVXuser there are some happy video users. I think it will be fine. But when in doubt, the 24-105 is a good alternative (unless you need f/2.8, but adds 30mm on the long end)
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Miranda F View Drop Down
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Post Options Post Options   Quote Miranda F Quote  Post ReplyReply Direct Link To This Post Posted: 13 January 2021 at 07:41
Originally posted by QuietOC QuietOC wrote:

Originally posted by Miranda F Miranda F wrote:

I see there is a SOny E-mount video lens which doesn't appear in the database.
SOny 18-105mm PZ
Appears to be APS-C on E.
Never seen one in the metal but currently on sale s/h on CEx at £330.

It is in the database. That is the kit zoom for the E-mount Super-35 camcorders, but plenty of APS-C stills camera users have used it. Sony also has a newer 18-110 cinema version. The Sony FE PZ 28-135mm F4 OSS is the full-frame version.

Interesting. I searched for it and couldn't find it yesterday. But there are oddities with that list - lenses appear when they shouldn't (zooms in the prime list) and sometimes disappear when they should.

Edited by Miranda F - 13 January 2021 at 07:46
Miranda F & Sensorex, Sony A7Rii, A58, Nex-6, Dynax 4, 5, 60, 500si/600si/700si/800si, various Sony & Minolta lenses, several Tamrons, lots of MF primes and *far* too many old film cameras ...
 



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