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We need a LA-EA5: eye AF on SAL135mm f1.8

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Davey View Drop Down
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Post Options Post Options   Quote Davey Quote  Post ReplyReply Direct Link To This Post Posted: 03 December 2017 at 06:32
Originally posted by Jonas A-R Jonas A-R wrote:

Originally posted by Davey Davey wrote:

The benefits of E-mount is that the system was designed from the ground up as a hybrid mount to better support video. Unlike A-mount, the glass performs AF at the designated F-stop, and the narrow flange distance allows you to adapt virtually any lens you want.

A-mount, however, was designed from the ground up for still photography, so the lenses peform AF wide open which means better AF sensitivity in low light. A99 II also has a slightly faster burst, and 79 hybrid cross points. A7R III doesn't have any cross points.


However, things may change if you are shooting fast glass at large apertures. At least accord to this: Sony Alpha 7R II can match or beat DSLR low light AF performance

As a general comment to this thread: I suspect that the contrast detect trimming following phase detection in the on sensor AF systems will not work well with screw drive lenses.


Exactly, and to me that's one of the biggest cons of E-mount for still photographers (but a plus for videographers). Since E-mount AF is performed at the designated F-stop, in tricky lighting situations, such as shooting cyclists against a landscape in fog, where you might want to shoot stopped down at F5.6, it severely cripples the AF sensitivity on any E-mount camera (already drops to -1 EV at F4) & makes it more prone to hunting. On A99 II, like all A-mount DSLRs and SLT, the AF is always performed wide open, so if you're working with F2.8 or faster glass your top-rated sensitivity remains at all F-stops.
 



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EddyH View Drop Down
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Post Options Post Options   Quote EddyH Quote  Post ReplyReply Direct Link To This Post Posted: 03 December 2017 at 08:04
Originally posted by Davey Davey wrote:

Shoulda bought an A99 II. Works amazing with A-mount glass (as it should). Enough said.


But my Mitakon 50mm f0.95 doesn't fit on the A99...
And that's a lens that I'm using a lot. More than the 135mm f1.8.

Eddy
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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: 03 December 2017 at 08:23
Originally posted by Fivepin Fivepin wrote:

I've already decided to make the switch to emount..a7riii
short list

1 stop light gain over a99ii

Do you need it?

smaller, lighter

Hardly, the difference is small. The A99m2 has a better grip and better UI.

touch screen

Hope you're right eyed, as for us lefties touchscreen is useless as it is only useful for focussing. You cannot use it for the menu, where it would be the most useful imho.

AF improvemnts

Compared to the A7r2, not the A99m2. The A99m2 has the same on-sensor phase detect and adds a dedicated phase system, making it all cross type (the A7r3 is only line phase detect).

3rd party lens support via adapters (this is a big one)

Depends on the lens.

a7riii adresses my long time battery complaint in a7 series cameras

Not about the A99m2.

SAME PRICE IN CANADA...so why wouldn't I get the A7riii

I do not get this one. Why would the A99m2 be cheaper? There is more tech inside.

Now if the A99ii were a reasonable sale say $2500...which I paid for my original a99 upon release...then yes..I would stick with A mount..

The A99m2 is miles ahead of your A99 and really worth the price.

But to forgo all the new advancements and pay the same for a year old camera...nah...tired of sticking with amount and missing new features.

What new functions does the A7r3 have that the A99m2 does not?

I did not want to go into this - that is why I winked. But it looks like you feel the need to defend your choice. But it just GAS that isdriving you. Not a problem, most of us here suffer from it

Enjoy your new toy

Edited by addy landzaat - 03 December 2017 at 08:26
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Fivepin View Drop Down
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Post Options Post Options   Quote Fivepin Quote  Post ReplyReply Direct Link To This Post Posted: 03 December 2017 at 14:20
Well I can agree that gas is behind this for sure. I shoot all the weddings I want with my old a99...but who doesn't have an improvements list.
I am not defending my choice at all...simply stating the reasons for making the decision to switch to E mount. Have I bought any new camera no.

Those would be the reasons to drive me to e mount though as listed above.

But now that I have had some counseling the gas is being managed. (For Now)

I think in the end. I don't really want to drop that much cash on any new camera. I really would like all of these improvements but as a realist I (personally) can't justify double the price when there are improvements I want that are not incorporated into the new body. I want my a99ii....I just want it to have all of the new E mount gadgetry. I don't feel like waiting for 4 years to get an a99ii with the tech of the a7riii in it...

So in the end...I am right back at the start...no idea what to do...

G.R.
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Post Options Post Options   Quote addy landzaat Quote  Post ReplyReply Direct Link To This Post Posted: 03 December 2017 at 14:41
What tech is in the A7r3 that is not in the A99m2?
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Post Options Post Options   Quote Jonas A-R Quote  Post ReplyReply Direct Link To This Post Posted: 03 December 2017 at 15:27
Originally posted by addy landzaat addy landzaat wrote:

What tech is in the A7r3 that is not in the A99m2?


Pixel shift is one obvious thing.
a9 a6300 21/2.8 Loxia 35/2.8Z 35/1.4Z 50/1.4Z 55/1.8Z 85/1.4GM 90/2.8G 12-24/4G 24-105/4G 70-200/4G 100-400/4-5.6GM 2x TC
 



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Fivepin View Drop Down
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Post Options Post Options   Quote Fivepin Quote  Post ReplyReply Direct Link To This Post Posted: 03 December 2017 at 15:45
Touch screen
pixel shift
Star eater issue resolved
increased sensor ISO
updated processor
HLG hybrid log gamma
S and Q function control
smaller
lighter
G.R.
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Davey View Drop Down
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Post Options Post Options   Quote Davey Quote  Post ReplyReply Direct Link To This Post Posted: 03 December 2017 at 16:10
Originally posted by Fivepin Fivepin wrote:

Touch screen
pixel shift
Star eater issue resolved
increased sensor ISO
updated processor
HLG hybrid log gamma
S and Q function control
smaller
lighter

A99 II has the same S-Log gamma, S&Q modes, and the same front end LSI (used in A9, A6500 & A7R III). There is no updated processor in A7R III.

Furthermore, pixel shift is not hardware-based. It's software controlling the IBIS that's already in there.

The only new hardware is the touch screen and new EVF / new battery, both of which were first used in A9.

A99 II, however, boasts 16-bit RAW image processing. I haven't seen that yet added to any other Sony camera thus far.
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Post Options Post Options   Quote addy landzaat Quote  Post ReplyReply Direct Link To This Post Posted: 03 December 2017 at 16:26
Originally posted by Fivepin Fivepin wrote:

Touch screen

As I mentioned, only for focus, so very limited.

pixel shift

You can only use it on still lives

Star eater issue resolved

Okay.

increased sensor ISO

It is the same sensor, so, no, however, the A7r3 has an improved image pipeline. Initial reports say little difference though.

updated processor

Updated from the A7r2 (1.8x faster), unclear if it is updated from the A99m2. The A99m2 12fps at 42mpx, that is faster then the A7r3.

HLG hybrid log gamma

So, you're into video? Should have mentioned that . According to the guys over at the camerastore the Hybrid Log is not that important.

S and Q function control

I do not know what you mean, a google search came back with nothing...

smaller

This is not tech and the difference is really small. Size is a lousy reason to get into FE-mount (and if you want small, go A6500).
A99m2: 143 x 104 x 76mm
A7r3: 127 x 96 x 74mm

lighter

Also no tech. But the difference is a bit bigger:
A99m2: 849gr
A7r3: 657gr

And you need all new lenses of course. But I am jealous of he f/4 lenses as those would fit the A99m2 so nicely.

But I think the FE-mount cameras are better at video, so, that is a good reason to get it (and ofcourse because you want one )
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Davey View Drop Down
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Post Options Post Options   Quote Davey Quote  Post ReplyReply Direct Link To This Post Posted: 03 December 2017 at 16:52
Originally posted by addy landzaat addy landzaat wrote:

Originally posted by Fivepin Fivepin wrote:

S and Q function control

I do not know what you mean, a google search came back with nothing...

Andy, he's referring to the Slow Motion & Quick (Time Lapse) video modes, but A99 II already does both.

Again, the so-called "star-eater" issue is not actually resolved in A7R III, but that's only relevent to the 1% doing serious astro photography anyhow, so I wouldn't call that a negative.

The pixel shift functionality is cool and if there's enough memory in A99 II to add the software, I'd like Sony to add via firmware update. However, I'm not sure how often it will actually be used in practice, so it's not a deal-breaker either way.

A7R III (like all E-mount) is advantageous for video-focused photographers for the following:
  1. Native E-mount lenses use stepless electronically controlled apertures and
  2. AF is performed at the designated F-stop which allows for smooth exposure adjustments & more flexible AF during video recording
  3. Virtually all Cine Primes are compatible with E-mount via adapters

But the video output on A99 II is just as good, and in addition it S&Q modes, A99 II boasts a plethora of Cine & broadcast profiles, S-Log 2 & S-Log 3, uncompressed HDMI out, zebra stripes, time code and so on.

A99 II is arguably better for traditional photographers as it boasts a much superior Dual Phase Detection AF system with -4 EV sensitivity & 79 hybrid cross points, 16-bit image processing, arguably superior ergonomics, and since Sony downsized A99 II to an APS-C-sized chassis, its the lightest, smallest full frame flagship in its class & I'd say it's the perfect size!

To each his own!
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Post Options Post Options   Quote AudioDoc Quote  Post ReplyReply Direct Link To This Post Posted: 03 December 2017 at 17:02
Seem like jet another A vs E mount debate! I guess we all "want our cake and eat it too"!    Lots of good arguments for either. As for the OP's point, I wonder which would come first, a new adapter, or a FE 135mm f1.8 lens. I'd personally guess the lens. Also there is the Batis 135mm which I believe still has a US $300 discount. Of course the ZA 135mm f1.8's best mach will naturally be the A99II. Updated or new A mount lenses probably have a "snowball's chance in hell" of happening.

From the "Department of Redundancy Department": Why are we not out making photographs rather than having these discussions? I believe Brian33 (and others) are setting a good example -- he is out shooting film with his Minolta X700 and Rokkor lenses! With beautiful results
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Post Options Post Options   Quote overeema Quote  Post ReplyReply Direct Link To This Post Posted: 11 March 2018 at 11:15
Originally posted by Cliff Cliff wrote:

I'll give a big +++ for an LA-EA5.
---snip---
Come on Sony, step up and give us an LA-EA5 adapter that enables the technical camera body magic you are producing. It will not cost you high dollar lens sales. The people who are buying those lenses will keep buying them, they won't go for legacy screw drive stuff. Nor would the rest of us spend as much for a lens as the camera body price even if you gave us the body. However, you will generate camera body and adapter sales from the rest of us who love the (disruptive) camera body technology you are producing and are happy with our old glass.
---snip---

Having the option of an LA-EA4mk2 (with the technology level of the A99ii) and the LA-EA5 (LA-EA3 with screw drive motor) would definitely be an enabler for me to consider buying an A7iii or A7Riii with both adapters. And subsequently slowly replacing A-mount glass with E-mount glass.
For the time being I'll stick with A-mount as my main camera.
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Post Options Post Options   Quote djfoxy Quote  Post ReplyReply Direct Link To This Post Posted: 08 April 2018 at 21:50
If there is a company that could do LAEA4 v2 or LAEA5 equivalent, that would be commlite.


Sony has no interest nor will to provide us Amounters with such an adapter.

Eye-AF is now working in Phase detect AF with laea3 and sam/ssm /usd/HSM lenses on A7 series release III?
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Post Options Post Options   Quote jackal2008 Quote  Post ReplyReply Direct Link To This Post Posted: 25 July 2018 at 04:22
Let's see if Sony would refresh laea adapter after canikon release their mirrorless cameras
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