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Sony LA-EA5 Adapter $250 October

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rovhazman View Drop Down
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Post Options Post Options   Quote rovhazman Quote  Post ReplyReply Direct Link To This Post Posted: 17 April 2021 at 19:44
Originally posted by sybersitizen sybersitizen wrote:

Don't know if this has been answered somewhere:

For motorized lenses (SSM or SAM), does the EA5 offer any functional advantage over the EA3 aside from the more compact size? I don't see any identified in this document.

The size and handling factor - the LA-EA5 has a small cylindrical shape and it handles much better than the LA-EA3.
 



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Post Options Post Options   Quote sybersitizen Quote  Post ReplyReply Direct Link To This Post Posted: 17 April 2021 at 20:09
So the answer to the question - as I posed it - is no.

And the EA3 could actually be considered to have an advantage for motorized lens users who want a more balanced tripod mount with large lenses.

Edited by sybersitizen - 17 April 2021 at 20:13
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Post Options Post Options   Quote rovhazman Quote  Post ReplyReply Direct Link To This Post Posted: 17 April 2021 at 20:17
Just one thing I noticed - when closing down the aperture, when underexposing, even when having Setting Effect ON, the display both on the back screen and on the EVF is showing "normal exposure" as if Setting Effect is OFF. Only when underexposed...

Just to make clear, I had a7rIV with LA-EA5 + Minolta AF 28mm F2. I set the aperture to f/8, ISO 200, and played with the exposure time. When exposure time was set to 1/15 sec, I see on back screen and on EVF an overexposed photo. I start reducing the shutter speed. At around 1/320 sec I get the "correct exposure" and when I keep reducing the shutter speed, the picture on the screen and the EVF seems as if I didn't change anything. Only when pressing the shutter I see the dark image.
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Post Options Post Options   Quote rovhazman Quote  Post ReplyReply Direct Link To This Post Posted: 17 April 2021 at 20:25
Originally posted by sybersitizen sybersitizen wrote:

So the answer to the question - as I posed it - is no.

And the EA3 could actually be considered to have an advantage for motorized lens users who want a more balanced tripod mount with large lenses.

Yes, you are right. The answer is no - it is mentioned in the link you provided. Just wanted to make sure that it was not overlooked.
Regarding your point about possible advantage, typically large lenses (big whites) come with their own tripod mount. I guess it may be an advantage in the case of intermediate size lenses, such as the CZ 24-70.
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Post Options Post Options   Quote gigo Quote  Post ReplyReply Direct Link To This Post Posted: 18 April 2021 at 01:54
Originally posted by rovhazman rovhazman wrote:

Just one thing I noticed - when closing down the aperture, when underexposing, even when having Setting Effect ON, the display both on the back screen and on the EVF is showing "normal exposure" as if Setting Effect is OFF. Only when underexposed...

Just to make clear, I had a7rIV with LA-EA5 + Minolta AF 28mm F2. I set the aperture to f/8, ISO 200, and played with the exposure time. When exposure time was set to 1/15 sec, I see on back screen and on EVF an overexposed photo. I start reducing the shutter speed. At around 1/320 sec I get the "correct exposure" and when I keep reducing the shutter speed, the picture on the screen and the EVF seems as if I didn't change anything. Only when pressing the shutter I see the dark image.

See
https://helpguide.sony.net/ilc/2040/v1/en/contents/TP0002887790.html
When using LA-EA5, metering / distance measurement is performed with the aperture open according to the specifications of the A-Mount lens.
It is necessary to narrow down the aperture to reflect the effect.
ILCE-1, FE:24/35/STF/135/10400GM, 90M/24105/200600G+6, 1.4x/2xTC
ILCE-QX1, Full Sprctrum NEX-5R, E:2
LA-EA5, A:35G/100S/200M/500R,3x-1x +7
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Post Options Post Options   Quote rovhazman Quote  Post ReplyReply Direct Link To This Post Posted: 18 April 2021 at 14:19
Thank you gigo.
Yes, I am aware that a-mount lenses are kept wide open for measurements and focus. I feel the aperture closing down every time I take a picture...
The weird thing is that when I keep the aperture constant (f/8) and only change shutter speed from overexposure to underexposure, it seems that the camera simulates the overexposure result (I see extremely bright image on the screen/EVF) but not the underexposure result. In both cases (underexposure and overexposure) the sensor doesn't get the real final image so I expect it to behave similarly at both extremes.
But I guess this is what it is and I need to set one of my custom keys to Aperture Preview...
 



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Post Options Post Options   Quote Miranda F Quote  Post ReplyReply Direct Link To This Post Posted: 19 April 2021 at 20:49
Originally posted by rovhazman rovhazman wrote:

Thank you gigo.
Yes, I am aware that a-mount lenses are kept wide open for measurements and focus. I feel the aperture closing down every time I take a picture...
The weird thing is that when I keep the aperture constant (f/8) and only change shutter speed from overexposure to underexposure, it seems that the camera simulates the overexposure result (I see extremely bright image on the screen/EVF) but not the underexposure result.


Just a thought - did you have auto ISO set?
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Post Options Post Options   Quote rovhazman Quote  Post ReplyReply Direct Link To This Post Posted: 19 April 2021 at 21:02
No, ISO is set to 200. Also, when I press the shutter, the aperture is closed down and I see the exposure I set (if underexposed, I get dark image).
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Post Options Post Options   Quote Miranda F Quote  Post ReplyReply Direct Link To This Post Posted: 20 April 2021 at 15:23
How odd.
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Post Options Post Options   Quote Dotsch Quote  Post ReplyReply Direct Link To This Post Posted: 19 May 2021 at 11:54
Does have anybody expirience with the AF performance of the LA-EA5?
How comparable is the the adapter AF performance, for example with native attached on A-Mount A77ii, A99, A99ii with SSM and screw drive lenses or native attached on a E-Mount on a a7RV?
Is it an suitable upgrade path for me as A-mount user?
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Post Options Post Options   Quote QuietOC Quote  Post ReplyReply Direct Link To This Post Posted: 19 May 2021 at 12:25
I haven't gotten the LA-EA5 yet, but I probably will eventually. The LA-EA5 has the same performance as an updated LA-EA3 with non screw-driven lenses.

The on-sensor phase-detect points are not as sensitive as the dedicated phase-detect sensors. They only detect horizontal contrast. The A7RIV phase-detect doesn't seem as good as the A7III. Both work better when the ISO setting is raised. There is probably a benefit of dialing in the second gain.

Many A-mount lenses would benefit from stopped down focusing that is so far not available. This might be why Sony sets F3.5 for the high frame rate SLT modes. It would be nice for Sony to implement something more like native E-mount aperture behavior with A-mount lenses. My Yongnuo adapter enables that with EF lenses.

Edited by QuietOC - 19 May 2021 at 12:46
Sony A7RIV NEX-5T HVL-F45RM LA-EA3 LA-EA4r MB-IV MC-11 EF-E II TLT ROKR MD-NEX KR-NEX DA-NEX
Minolta Maxxum 600si
Pentax Q7 5-15 15-45/2.8 8.5/1.9 11.5/9 AF-P/Q
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Post Options Post Options   Quote mambo Quote  Post ReplyReply Direct Link To This Post Posted: 19 May 2021 at 12:27
Originally posted by Dotsch Dotsch wrote:

Does have anybody expirience with the AF performance of the LA-EA5?
How comparable is the the adapter AF performance, for example with native attached on A-Mount A77ii, A99, A99ii with SSM and screw drive lenses or native attached on a E-Mount on a a7RV?
Is it an suitable upgrade path for me as A-mount user?


I have both the LA-EA-R (aka monster adapter) and the LAEA5. They are not anyway near the A99ii for screw-driven lenses. For SSM lens they a just a tad slower.
Charles M

A99, Minolta:|200f2.8G|∑35f1.4Art|A6400|A7Riii| Viltrox 85f1.8|SEL200600G|Zeiss32f1.8|Sigma16f1.4|Samyang 45 f1.8; 35 f2.8; 24 f2.8|
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Post Options Post Options   Quote gigo Quote  Post ReplyReply Direct Link To This Post Posted: 19 May 2021 at 13:36
I had a 99II and about 40 A-Mount lenses. 7RIV too.

If AF performance is about speed, the LA-EA5 isn't very impressive. Depending on the lens, it may feel slow or fast.

However, from the point of view of accuracy, 7RIV and 1 are different from 99II. It frees you from AF Micro Adjust, which often goes wrong and causes headaches.
Eye AF, Animal Eye AF, Practical tracking. Overwhelming.

I set the balance between speed and accuracy in AF-C, and prioritize accuracy in AF-S. I have never tried speed priority.

The image quality is overwhelming due to the AF accuracy, the fact that there are no obstacles such as TLM, and the improvement in sensor performance for several years. I was surprised that the A-Mount lens had such excellent performance.

There are not many options, but if the budget allows, I recommend ILCE-1.

In my personal opinion
Equivalent to 7RIV + LA-EA5-> 99III.
Equivalent to 1 + LA-EA5-> 99V (not IV).

I sold the 99II to a friend who didn't have the budget to move it to the E-Mount at an exceptionally low price, but I have no regrets.
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LA-EA5, A:35G/100S/200M/500R,3x-1x +7
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Post Options Post Options   Quote crysania Quote  Post ReplyReply Direct Link To This Post Posted: 19 May 2021 at 14:00
Originally posted by mambo mambo wrote:


I have both the LA-EA-R (aka monster adapter) and the LAEA5. They are not anyway near the A99ii for screw-driven lenses. For SSM lens they a just a tad slower.


This is why I ultimately dropped the idea of using the adapter with a camera and went to getting a native lens (a Tamron in this case, since it's what I can afford). Speed is important and the adapter + screw-driven lens just wasn't going to cut it.
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