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Sigma 24-70m f2.8 vs Sigma 24-105 f4 A mount

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Manuel Iniesta View Drop Down
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Post Options Post Options   Quote Manuel Iniesta Quote  Post ReplyReply Direct Link To This Post Posted: 25 December 2019 at 15:56
Merry Xmas!/Hannuka/Whatever!

Addy, thanks for the advice, I know well about the different AF sensors, as a matter of fact, I used to be the Sony Digital Imaging specialist for Argentina and Latinoamerica in a previous life.

It just seems that the KM 28-75 doesn't provide a consistent AF behavior, which is a shame, 'cause it's awesome when it delivers.

BTW, I'll pick up the 24-105G tomorrow. I can't wait for the E mount Sigma 24-70, and I need the wider 24mm FOV (so no Tamron 28-75).

The next steps are getting the LA-EA3 and MC-11 adaptors, and maybe the adaptors for the K/F/OM mounts... oh well.
 



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nandbytes View Drop Down
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Post Options Post Options   Quote nandbytes Quote  Post ReplyReply Direct Link To This Post Posted: 25 December 2019 at 16:13
24-105mm is one of my favourite lenses. It's really my workhorse for many things.
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balacau View Drop Down
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Post Options Post Options   Quote balacau Quote  Post ReplyReply Direct Link To This Post Posted: 27 December 2019 at 12:04
Regarding an earlier comment by Miranda and using the Sigma 10-20mm lens on an e mount body via and adapter, I doubt I'd have much of an issue using a lens if that size or weight on my a6600. However I've recently been trying the Samyang 135mm f2 lens via the LAEA3 and I do find it quite awkward due to it being very front heavy. I dare say the Sigma 18-35mm Art won't be any different. I may end up using those heavier lenses on my a68 and stick with lighter glass for my a6600.

It almost makes me glad I no longer have a 50-500mm lens anymore.
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Post Options Post Options   Quote Miranda F Quote  Post ReplyReply Direct Link To This Post Posted: 28 December 2019 at 10:04
It appears the E-mount Version is longer and heavier still - basically the same lens with an extended mount. You could try the 85mm f1.8, I suppose, which is half the weight and designed specifically for mirror-less. That's more or less equivalent to 135mm on FF.

Edited by Miranda F - 28 December 2019 at 10:07
Miranda F & Sensorex, Sony 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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Post Options Post Options   Quote addy landzaat Quote  Post ReplyReply Direct Link To This Post Posted: 28 December 2019 at 10:15
Originally posted by Miranda F Miranda F wrote:

It appears the E-mount Version is longer and heavier still - basically the same lens with an extended mount. You could try the 85mm f1.8, I suppose, which is half the weight and designed specifically for mirror-less. That's more or less equivalent to 135mm on FF.
The E-mount version has the adapter build in.I would not bother with the Samyang 85/1.8 when you can get the wonderful Sony 85/1.8 for a little more.
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Post Options Post Options   Quote balacau Quote  Post ReplyReply Direct Link To This Post Posted: 28 December 2019 at 11:23
Seems a common thing with lenses having an inbuilt adapter installed to make them suitable for mirror less camera use.

Don't get me wrong, I love the incredible quality of the 135
Mm both in terms of lens construction and imagery but I do find it just a bit awkward to use on the a6600 body. Anyway it's a keeper. I've had the Sony SAL85F28 for years and used it yet little. I don't imagine I'll be investing in an 85mm prime anytime soon but the 135mm f2 doubles as a decent telephoto lens on an aps-c body.

Originally posted by Miranda F Miranda F wrote:

It appears the E-mount Version is longer and heavier still - basically the same lens with an extended mount. You could try the 85mm f1.8, I suppose, which is half the weight and designed specifically for mirror-less. That's more or less equivalent to 135mm on FF.
Understanding is a 3-edged sword. Your side, their side and the truth.
 



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Manuel Iniesta View Drop Down
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Post Options Post Options   Quote Manuel Iniesta Quote  Post ReplyReply Direct Link To This Post Posted: 30 December 2019 at 20:22
BTW,I have already used the A7R4 + 24-105G combo side by side to my A850 + KM 28-75 f2.8.
Cruel comparison indeed! While editing, when I switch from pictures of the A7 to the A850 , is like images lacked bite, sharpness... everything.
I'm really happy with my new gear, want to see the results of the A7R4 with my A mount lenses (Sony 50mm f1.4, 70-400G, and specially with my dear 85mm f2.8).

Best regards!
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Post Options Post Options   Quote nandbytes Quote  Post ReplyReply Direct Link To This Post Posted: 30 December 2019 at 21:17
You should try the FE 85mm f1.8. you won't hold that 85mm f2.8 so dearly after that
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Post Options Post Options   Quote Manuel Iniesta Quote  Post ReplyReply Direct Link To This Post Posted: 31 December 2019 at 04:26
I know, I know, but the LA-EA3 comes first in the list. And this is a long list!
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Post Options Post Options   Quote pegelli Quote  Post ReplyReply Direct Link To This Post Posted: 31 December 2019 at 14:27
Originally posted by Manuel Iniesta Manuel Iniesta wrote:

While editing, when I switch from pictures of the A7 to the A850 , is like images lacked bite, sharpness... everything.
Obviously first there is a much better lens but then also the A850 has a much stronger AA filter than the A7 and therefore the files need a bit more sharpening (preferably deconvolution rather than unsharp mask) to develop more "bite" that comes more natural to cameras with weaker AA filters.

And I fully agree with nandbytes, the FE 85/1.8 is really a very economical hidden gem, in the same league as the Batis 85 as well as the GM 85/1.4, both of which are much more expensive.

Edited by pegelli - 31 December 2019 at 14:30
Mind the bandwidth of others, don't link pictures larger then 1024 wide or 960 pix high, see here
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Post Options Post Options   Quote nandbytes Quote  Post ReplyReply Direct Link To This Post Posted: 31 December 2019 at 15:37
85GM does not have much over FE85/1.8 apart from the bokeh rendering which is really excellent on 85GM. Otherwise FE85/1.8 is overall better.

I currently own the 85GM and owned FE85/1.8 for 2 years. 85GM is more of an indulgence

if you are happy with the f2.8 aperture also consider the FE 90mm macro.



Edited by nandbytes - 31 December 2019 at 15:46
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Manuel Iniesta View Drop Down
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Post Options Post Options   Quote Manuel Iniesta Quote  Post ReplyReply Direct Link To This Post Posted: 31 December 2019 at 19:46
I've read raving reviews of the 90mm Macro, but I doubt wether is fast enough for people photography or not, it would be awesome if so!
I already have the A mount Sony 100mm f2.8 and a couple of nice enlarging lenses which I can attach to a bellows and rail system. Together with my enlarger's column I would use them to digitize my negs, that's my New Year resolution for sure.
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Post Options Post Options   Quote Hezu Quote  Post ReplyReply Direct Link To This Post Posted: 31 December 2019 at 20:28
Originally posted by Manuel Iniesta Manuel Iniesta wrote:

I've read raving reviews of the 90mm Macro, but I doubt wether is fast enough for people photography or not, it would be awesome if so!
Prior getting Sony FE 2.8/90 Macro I also thought that macro lenses must have slow AF since all my older A mount macro lenses (Tamron 90 mm and 180 mm and the oldest version of Minolta 100 mm) focused slowly. But alas, FE 2.8/90 Macro focuses about as fast as most other Sony FE lenses (on the other hand Sony FE 2.8/50 Macro then again has quite mediocre AF) and there is also focus limiter.
Originally posted by Manuel Iniesta Manuel Iniesta wrote:

I already have the A mount Sony 100mm f2.8 and a couple of nice enlarging lenses which I can attach to a bellows and rail system. Together with my enlarger's column I would use them to digitize my negs, that's my New Year resolution for sure.
Ok, you may not then necessarily need a new macro lens, although remember that Sony (and older Minolta) 100 mm macro lenses lack built-in AF motor and if you want to get any AF on E mount, you will need LA-EA4, which has its disadvantages in AF capabilities.
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Post Options Post Options   Quote nandbytes Quote  Post ReplyReply Direct Link To This Post Posted: 31 December 2019 at 20:29
Originally posted by Manuel Iniesta Manuel Iniesta wrote:

I've read raving reviews of the 90mm Macro, but I doubt wether is fast enough for people photography or not, it would be awesome if so!
I already have the A mount Sony 100mm f2.8 and a couple of nice enlarging lenses which I can attach to a bellows and rail system. Together with my enlarger's column I would use them to digitize my negs, that's my New Year resolution for sure.


it has a focus limiter and with it the AF doesn't hunt through the entire range. So can be easily used as a people/portrait lens. The AF is rather fast and accurate too.

Unlike the Sony/minolta 100mm macro lenses the FE 90mm macro is internal focussing i.e. does not extend.
Its really an awesome lens to use.
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