Official Sony A7 or A7r discussion thread

[Thoth]

stick with your lux and your CVs. you won't go wrong

D CV might not work well on d A7. A7R doesn't come with pdaf. Quite disappointing.

 

[Thoth]

those lens + M240.

Seemed tat is d best camera for such lenses for now. Wondering if d Sony adapters will provide better performance over d 3rd party ones. Shall wait n c. Haha

 

[Skyways]

Think this link will enlightened abit about the offset micro-lenses...
on 7r only ?
See http://www.youtube.com/watch?v=VfSrsqn3ESc&feature=share&t=17m28s

 

[Thoth]

Think this link will enlightened abit about the offset micro-lenses... on 7r only ? See http://www.youtube.com/watch?v=VfSrsqn3ESc&feature=share&t=17m28s

Yes. On A7R only. Haha.

 

[Anthony Lee]

My concern is the IQ and rendering of its native lenses, especially the Zeiss FEs. Looks like they are both high in IQ and pleasing in rendering.

Source - SARS

"2) DearSusans writes: “I noticed quite a few negative comments about the pricing of the news Zeiss lenses for Sony. I think that’s ridiculous. Have you read Brian Smith’s preview ? Have you seen the pixel peeper 100% enlargement of the eye ? The lens is sharp but what really stunned me is that this doesn’t look like a CMOS image. To me it looks like a CCD. I *know* it’s a CMOS, but it *feels* like a CCD. It is so clean and free of digital artifacts such as demosaicing and noise. I’ve never seen such quality outside an M9. Even the M240 doesn’t have it ! I wrote to Brian about it and he tells me it’s probably the BIONX Z engine. I can’t wait to see this for myself !”

 

[Rashkae]

Seemed tat is d best camera for such lenses for now. Wondering if d Sony adapters will provide better performance over d 3rd party ones. Shall wait n c. Haha

...and why would sony create adapters for those lenses?

 

[ManWearPants]

Whichever suits me better will be my choice, not so much as which one is better. From what I have read so far, if one is solely interested in IQ, then the 7r should be better. I have read somewhere also that there will be Zeiss FE 135f2, 200f4 and 300F4 and the rumored FE85f1.8. This source is actually a Zeiss site themselves, and when I find it again will attach here.

http://lenses.zeiss.com/camera-lenses/en_de/service/download_center/hasselblad_fe.html

FE lenses shud be : FE 2/110, 2.8/150, 4/250, 4/350

My concern is the IQ and rendering of its native lenses, especially the Zeiss FEs. Looks like they are both high in IQ and pleasing in rendering.

Source - SARS

"2) DearSusans writes: “I noticed quite a few negative comments about the pricing of the news Zeiss lenses for Sony. I think that’s ridiculous. Have you read Brian Smith’s preview ? Have you seen the pixel peeper 100% enlargement of the eye ? The lens is sharp but what really stunned me is that this doesn’t look like a CMOS image. To me it looks like a CCD. I *know* it’s a CMOS, but it *feels* like a CCD. It is so clean and free of digital artifacts such as demosaicing and noise. I’ve never seen such quality outside an M9. Even the M240 doesn’t have it ! I wrote to Brian about it and he tells me it’s probably the BIONX Z engine. I can’t wait to see this for myself !”

Uncle, the above link is to Hasselbald FE medium format lenses, not the Sony FE mount lah.

Well, if it has the look of CCD at high ISO, then Kodak sensors will not be missed. I think Brian is referring to the A7r sensor without AA. But that does not comes with PDAF so I wonder if my Contax N AF will work at all?

 

[Thoth]

...and why would sony create adapters for those lenses?

So more ppl will buy the body? Fuji did it wif the M to X mount adaptor. LOL

 

[ageha]

So more ppl will buy the body? Fuji did it wif the M to X mount adaptor. LOL

They will buy it anyway.

 

[WATCHMYPHOTO]

Can anyone of you explain to me that :　

why does A-mount lens need Translucent mirror (used on LA-EA4 adapter) for a quick focus on A7/A7R but E-mount lens doesn't need?

Thanks.

 

[Anthony Lee]

Uncle, the above link is to Hasselbald FE medium format lenses, not the Sony FE mount lah.

Well, if it has the look of CCD at high ISO, then Kodak sensors will not be missed. I think Brian is referring to the A7r sensor without AA. But that does not comes with PDAF so I wonder if my Contax N AF will work at all?

Yah, read too much and got confused with the Hassy FE.

Understand your concern regarding your Contax N lenses, but if the native lenses can produce even better than what your N can produce on Canon, you don't need your Contax N with even A7 or 7r. The problem with most of us is that we are never satisfied with what we have, especially when there's a new kid round the block. I have stayed away for 2.5 years, and once in a while, I am still amazed with what my lowly NEX 5N can produce with a simple Nikkor 28f2.8 ais. If I do buy an A7 or 7r, it will be complementary to what I have, and if the Zeiss 24-70f4 is really good, that will be my only native AF lens.

 

[ageha]

Can anyone of you explain to me that :　

why does A-mount lens need Translucent mirror (used on LA-EA4 adapter) for a quick focus on A7/A7R but E-mount lens doesn't need?

Thanks.

If Sony would offer an adapter with a non-translucent but movable mirror A-mount lenses would also focus fast. In any way A-mount lenses would need a dedicated phase-detect sensor to focus fast. The on-sensor gimmick simply doesn't seem to be as efficient and doesn't seem to work totally without contrast-detect. A-mount lenses don't have the optimum motor to make the best use of it. However, who said E-mount lenses would focus as fast and reliable in the same situations as A-mount lenses? In some situations an A-mount lens with LA-EA4 might be still better.

 

[Rashkae]

Can anyone of you explain to me that :　

why does A-mount lens need Translucent mirror (used on LA-EA4 adapter) for a quick focus on A7/A7R but E-mount lens doesn't need?

Thanks.

A-mount lenses are designed for PDAF. This requires a different focus motor design than lenses that use CDAF. Also, I'm sure that A-mount lenses with the LA-EA4 will focus faster and track objects much better than the native E-mount lenses.

 

[nsng]

NS, where did you gather that A7 does not comes with offset micro-lenses? I have expected both new sensors to have offset micro-lenses since it is a feature that has been mentioned in the same breath.

The M240 sensor was specially designed for Leica M lenses, hence the shallow well and more elongated micro-lenses. Sony sensors are probably also designed to accept incident light from a particular angle when paired with native mount lenses. When you slap any adapter that changes the distance between the rear lens elements and the sensor, you would have also changed the angle of light coming through. IMO, the edges will still take a hit in performance.

While not RF, I am also curious to know how the A7r will perform when using alternative UWA lenses with adapters.

Look at the link from Skyways. If these microlens help in eliminating colour shifts, then the A7r is the choice for those who intend to use WA rf lenses. Of course, there is no guarantee this will work with all WA rf lenses out there. We will just have to wsit for someone to post further results. BTW, when I switched off lens detection in my M240, I could see a small amount of cyan and magenta in the extreme corners with the 21 Elmarit- Asph.

 

[ageha]

Look at the link from Skyways. If these microlens help in eliminating colour shifts, then the A7r is the choice for those who intend to use WA rf lenses. Of course, there is no guarantee this will work with all WA rf lenses out there. We will just have to wsit for someone to post further results. BTW, when I switched off lens detection in my M240, I could see a small amount of cyan and magenta in the extreme corners with the 21 Elmarit- Asph.

Both will have micro lenses, CMOS sensors always do and I doubt the 7r will use a more advanced technology. It's probably just marketing...

 

[Rashkae]

Both will have micro lenses, CMOS sensors always do and I doubt the 7r will use a more advanced technology. It's probably just marketing...

The 7r may use microlenses that are more optimized for wide angle, while the 7 will have more general application microlenses

 

[ricohflex]

Yah, read too much and got confused with the Hassy FE.

Actually you were right.
I expect 3rd party adapters for Hasselblad CF/FE lenses to Sony A7.
Just like they were made for Hasselblad CF/FE lenses to Canon EF mount.

 

[ManWearPants]

Yah, read too much and got confused with the Hassy FE.

Understand your concern regarding your Contax N lenses, but if the native lenses can produce even better than what your N can produce on Canon, you don't need your Contax N with even A7 or 7r. The problem with most of us is that we are never satisfied with what we have, especially when there's a new kid round the block. I have stayed away for 2.5 years, and once in a while, I am still amazed with what my lowly NEX 5N can produce with a simple Nikkor 28f2.8 ais. If I do buy an A7 or 7r, it will be complementary to what I have, and if the Zeiss 24-70f4 is really good, that will be my only native AF lens.

They don't make parfocal zoom lenses nowadays so that is one good reason to keep my Contax N. Furthermore, it will also give me the flexibility to move back to Canon. Anyway, let's wait and see how things develop....

Both will have micro lenses, CMOS sensors always do and I doubt the 7r will use a more advanced technology. It's probably just marketing...

We are referring to offset micro-lenses. You can see the FF sensor is very near to the mount circumference and the flange distance is also very short. These offset micro-lenses are required to avoid the colour cast issues that is even on NEX 7.

 

[Anthony Lee]

Differences between A7 & A7r:

http://www.sonyalpharumors.com/

 

[Thoth]

They don't make parfocal zoom lenses nowadays so that is one good reason to keep my Contax N. Furthermore, it will also give me the flexibility to move back to Canon. Anyway, let's wait and see how things develop....



We are referring to offset micro-lenses. You can see the FF sensor is very near to the mount circumference and the flange distance is also very short. These offset micro-lenses are required to avoid the colour cast issues that is even on NEX 7.

Still waiting for the review confirmation that such offset micro lens arrangement on the A7R will enable the UWA retrofocal lenses to be used with no issues...