So sánh la-ea4 la-ea2 năm 2024

I'm trying to find out whether the existing LA-EA2 adapter will be usable on A7 bodies and if so, what are the differences between the LA-EA2 and LA-EA4. And if it will not: why so.

Many thanks for your shared knowledge,

Serge

ANSWER:

This question has not been answered yet.

Kiichiro • Contributing Member • Posts: 515

Re: LA-EA2 vs LA-EA4

In reply to sergerez • Oct 17, 2013

sergerez wrote:

I'm trying to find out whether the existing LA-EA2 adapter will be usable on A7 bodies and if so, what are the differences between the LA-EA2 and LA-EA4. And if it will not: why so.

Many thanks for your shared knowledge,

Serge

The mirror in the LA-EA2 is APS-C size so it will not work as well with the a7.

Sony Cyber-shot DSC-TX20 Fujifilm X70 Sony a7 II Sony 35mm F1.4 G Sony FE 70-200 F4

LA-EA2 allows any A-mount lens to cast at least APS image

In reply to sergerez • Oct 17, 2013

sergerez wrote: I'm trying to find out whether the existing LA-EA2 adapter will be usable on A7 bodies and if so, what are the differences between the LA-EA2 and LA-EA4. And if it will not: why so

The LA-EA2 works to the limit of its capabilities even on an A7. A half frame A mount lens works perfectly on an A7 with the LA-EA2 adapter for example. But the LA-EA2 does not let pass the entire, larger-than-half frame image circle of full-frame A-mount lenses through to the A7 sensor. So you get an image on the A7 with an LA-EA2 and a full frame A-mount lens, but the image has sort of cropped by the LA-EA2 down to somwhat more than APS-C frame size, showing ragged dark edges beyond.

OP sergerez • Regular Member • Posts: 313

Re: LA-EA2 allows any A-mount lens to cast at least APS image

Many thanks guys, got it.

So, it looks like LA-EA4 might be even bigger in size compared to LA-EA2. As for the latter... I might regret buying it at the first place.

Serge

RussellInCincinnati wrote:

sergerez wrote: I'm trying to find out whether the existing LA-EA2 adapter will be usable on A7 bodies and if so, what are the differences between the LA-EA2 and LA-EA4. And if it will not: why so

The LA-EA2 works to the limit of its capabilities even on an A7. A half frame A mount lens works perfectly on an A7 with the LA-EA2 adapter for example. But the LA-EA2 does not let pass the entire, larger-than-half frame image circle of full-frame A-mount lenses through to the A7 sensor. So you get an image on the A7 with an LA-EA2 and a full frame A-mount lens, but the image has sort of cropped by the LA-EA2 down to somwhat more than APS-C frame size, showing ragged dark edges beyond.

don't assume LA-EA4 is any bigger on the exterior than LA-EA2

In reply to sergerez • Oct 17, 2013

It might be, but ain't necessarily so. Check before concluding. For example the only real physical exterior difference might be an internal rectangular baffle in the LA-EA1 case. Hmm, wonder if you could do surgery on a LA-EA1 and turn it into a -3.

Lightshow • Veteran Member • Posts: 7,727

Re: LA-EA2 allows any A-mount lens to cast at least APS image

In reply to sergerez • Oct 17, 2013

sergerez wrote:

Many thanks guys, got it.

So, it looks like LA-EA4 might be even bigger in size compared to LA-EA2. As for the latter... I might regret buying it at the first place.

Serge

The LA-EA2 has a baffle around the APS-C translucent mirror that the LA-EA4 has replaced with a larger translucent mirror, as for the outside diameter, a search for the specs should yield the answer you are seeking.

RussellInCincinnati wrote:

sergerez wrote: I'm trying to find out whether the existing LA-EA2 adapter will be usable on A7 bodies and if so, what are the differences between the LA-EA2 and LA-EA4. And if it will not: why so

The LA-EA2 works to the limit of its capabilities even on an A7. A half frame A mount lens works perfectly on an A7 with the LA-EA2 adapter for example. But the LA-EA2 does not let pass the entire, larger-than-half frame image circle of full-frame A-mount lenses through to the A7 sensor. So you get an image on the A7 with an LA-EA2 and a full frame A-mount lens, but the image has sort of cropped by the LA-EA2 down to somwhat more than APS-C frame size, showing ragged dark edges beyond.

Sony Alpha NEX-7 Sony a7R Leica Elmarit-M 24mm f/2.8 ASPH Leica APO-Summicron-M 90mm f/2 ASPH Voigtlander 15mm F4.5 Super Wide Heliar +20 more

franzel • Contributing Member • Posts: 818

Re: LA-EA2 allows any A-mount lens to cast at least APS image

Look here:

http://www.luminous-landscape.com/reviews/cameras/sony_a7r_hands_on.shtml

It's confusing, as he talks about an EA3 adapter , but also says he didn't have any new adapters to try .

Re: LA-EA2 allows any A-mount lens to cast at least APS image

In reply to franzel • Oct 17, 2013

franzel wrote:

Look here:

http://www.luminous-landscape.com/reviews/cameras/sony_a7r_hands_on.shtml

It's confusing, as he talks about an EA3 adapter , but also says he didn't have any new adapters to try .

Simple. The LA-EA3 is not new. It has been shipped with the NEX VG900 for a year, but has not been available as a single item until now. The LA-EA4 is brand new, and probably hard to come by at the moment.

MaxNex • Forum Member • Posts: 64

Re: LA-EA2 allows any A-mount lens to cast at least APS image

So is the LA_EA4 meant to be used exclusively with the new full frame bodies or can it be used on a NEX6 as well?

Sony Alpha NEX-6 Sony E 50mm F1.8 OSS Sony E 55-210mm F4.5-6.3 OSS Sony E 16-50mm F3.5-5.6 PZ OSS Adobe Photoshop Lightroom 5

padam19 • Regular Member • Posts: 358

Re: LA-EA2 allows any A-mount lens to cast at least APS image

In reply to MaxNex • Oct 17, 2013

With the LA-EA4, is there any difference between the A7 and A7R?

Can those phase detect pixels work like with the A99 or it iss strictly for native lenses?

Re: LA-EA2 allows any A-mount lens to cast at least APS image

In reply to MaxNex • Nov 24, 2013

My brother tested the LA-EA4 on the Sony NEX-7 and the Sony NEX-5. It worked on both. So I guess it should also work on the NEX-6.

You can read a short comparison on our blog: http://www.panotwins.de/technical/comparing-sony-la-ea2-and-sony-la-ea4/

All the best, PanoTwin Markus

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