Official Sony A7 or A7r discussion thread

[kokanadan]

It seems like the corner fringing issue to me. One way to find out if there is a sensor issue or just the lens. Turn off your lens profile on your M9 and shoot , you should be able to see some color casts as well without the correction in M9. If none, switch another lens on your A7r to test. If the grayish area is not present, it could be just the corners issue of the wide angle lens on the A7R :think:

Leica lenses are optimized for the M cameras. There is software correction also, based on the len's 6-bit coding.

Thanks for the inputs. In fact, the lens is not 6-bit coded, hence couldn't be auto-detection by M9. I already set the lens profile off.
Also, it doesn't look like corner fringing. The greyish tone happens in the top-side middle section. It has an inverse spherical shape, which is unlike vignette. I'm puzzled on why is there such a cast using this 21mm on A7R.

 

[Atarandas]

Thanks for the inputs. In fact, the lens is not 6-bit coded, hence couldn't be auto-detection by M9. I already set the lens profile off.
Also, it doesn't look like corner fringing. The greyish tone happens in the top-side middle section. It has an inverse spherical shape, which is unlike vignette. I'm puzzled on why is there such a cast using this 21mm on A7R.

Ic , its a strange grey cast. Hmm think possible to get another a7r to try ? That would determine if your set needs to be serviced ?

 

[pinholecam]

Testing out an old dog of a lens.

Soligor 17/4 (M42 mount)

DSC0075620140110ILCE-7-1 by jenkwang, on Flickr

I'm a bit surprised that this old 3rd party lens manages to cling on to digital 24mp.
Edges are not that great, but I guess it will have to do as my widest lens until I get/find something else.
Keystone distortion is the photographer's fault of course

I left the full size image on my flickr for those who want a reference.

 

[Hacker]

Thanks for the inputs. In fact, the lens is not 6-bit coded, hence couldn't be auto-detection by M9. I already set the lens profile off. Also, it doesn't look like corner fringing. The greyish tone happens in the top-side middle section. It has an inverse spherical shape, which is unlike vignette. I'm puzzled on why is there such a cast using this 21mm on A7R.

Looking at the pix with the Sony, looks strange indeed. Have you tried with a different lens to rule out the camera?

 

[kokanadan]

Ic , its a strange grey cast. Hmm think possible to get another a7r to try ? That would determine if your set needs to be serviced ?

Looking at the pix with the Sony, looks strange indeed. Have you tried with a different lens to rule out the camera?

Thanks for the inputs again. I would need to borrow another A7R to test. Probably have to join one of the gatherings in future to do so.

I have a zeiss 35mm biogon which I'll try tomorrow. But, I do suspect it is due to UWA lenses. Best if I could find another 21mm to try.

 

[tsammyc]

I compared the FE 35mm to my CV 35mm... Not impressed. The FE is surprisingly not as sharp as the CV. Colours look washed out.

The FE 55mm. Ah... That's a different story. Wide open, the sharpness is excellent.

A7 or A7r? I'm surprised by this. I know that the CV is a large and expensive lens and should be very good, but the 35FE has been able to resolve 36MP for me, which nothing else seems to do. The 35FE seems to even be sharper than my Zeiss ZM 35mm F2 Biogon, which was my reference for some time.

Also, Lloyd Chambers at digilloyd.com says center sharpness is comparable to the Zeiss Otus at F2.8 so it's hard to imagine that any lens significantly beats the Otus. Perhaps it's sample variation or you are comparing the corners, where the 35FE isn't as sharp as the Otus.

As for the difference in colors, white balance sometimes works differently when the lens has an electronic connection.

 

[pinholecam]

Another lens test.


DSC0080120140110ILCE-7-11-1 by jenkwang, on Flickr
Pentax SMC K24/2.8

As usual, I left a full sized sample on flickr.
No much to complain about this lens for me, one of the smaller slr 24/2.8, flare resistant smc coating, wide enough for quite a bit of things on FF.
Sharp (very) in the center wide open and overall sharp stopped down to f5.6 and above.
Generally, I think the consensus from various forums is that most OEM slr 24mm work quite well.

 

[syke]

Thanks for the inputs again. I would need to borrow another A7R to test. Probably have to join one of the gatherings in future to do so. I have a zeiss 35mm biogon which I'll try tomorrow. But, I do suspect it is due to UWA lenses. Best if I could find another 21mm to try.

No point trying the biogon design. Sure have problems.

Distagon is a better bet. But even the 15mm & 18mm have problems.

 

[kokanadan]

No point trying the biogon design. Sure have problems.

Distagon is a better bet. But even the 15mm & 18mm have problems.

I do not have a distagon to test. So do you suspect it has to do with the lens design on A7R sensor? I could not fathom why there is such a cast in an unusual shape. Typically, it should be cylindrical like vignetting, but this is not for my case.

 

[syke]

I do not have a distagon to test. So do you suspect it has to do with the lens design on A7R sensor? I could not fathom why there is such a cast in an unusual shape. Typically, it should be cylindrical like vignetting, but this is not for my case.

It is due to the lens design and the close flange distance between the rear element and the sensor.

You don't get such issues for film, because these lenses were designed during the film era and they don't have the limitations digital sensors have.

I have seen worst samples where horizontal lines appear...

Sony can improve on the sensor, sure why not... But bear in mind Leica's also have similar issues, you just don't see them because they are processed in-camera.

Leica is masking the problem, because if those RF lenses don't work, then who is going to buy them?

Sony probably doesn't feel an urgent need to, afterall they want you to buy their FE lenses.

If only someone can conjure up an in-camera app that helps fix all these UWA issues on the A7/R.

 

[coolhirako]

I thought the playmemories app lens compensation which is $9.90 got help out a little bit right ?

 

[ryanzyx]

for Camera itself
https://www.playmemoriescameraapps.com/portal/

Thanks Bro Errz...

 

[Hacker]

Has anyone done a focusing speed comparison between the A7 and the A7R? Curious as to how it compares especially when mated with adapters like the Metabones EF to NEX. Have an A7R but would prefer the A7 if it is faster.

 

[kokanadan]

It is due to the lens design and the close flange distance between the rear element and the sensor.

You don't get such issues for film, because these lenses were designed during the film era and they don't have the limitations digital sensors have.

I have seen worst samples where horizontal lines appear...

Sony can improve on the sensor, sure why not... But bear in mind Leica's also have similar issues, you just don't see them because they are processed in-camera.

Leica is masking the problem, because if those RF lenses don't work, then who is going to buy them?

Sony probably doesn't feel an urgent need to, afterall they want you to buy their FE lenses.

If only someone can conjure up an in-camera app that helps fix all these UWA issues on the A7/R.

Thanks for the clarification. Looks like I have to wait for a FE UWA then.

I thought the playmemories app lens compensation which is $9.90 got help out a little bit right ?

No, it doesn't.

 

[skygon]

bought from SLR Revo. Even the staff asked me to register online.

I registered mine at mysony Sg. Like i registered other sony products.

 

[NoS77]

hi guys, was too late to get pwp price for the la-ea4 ... anyone knows any shop that sells at pwp price?

Did you manage to get it at pwp price? Street price is not that far off actually...

 

[Kit]

I do not have a distagon to test. So do you suspect it has to do with the lens design on A7R sensor? I could not fathom why there is such a cast in an unusual shape. Typically, it should be cylindrical like vignetting, but this is not for my case.

I have both the Distagon 15mm and 18mm(just sold though) and use them on my A7R. No problems.

 

[ryanzyx]

For those who are looking for L-Bracket for A7/A7R now SunwayFoto has one.. TK Foto is in stock now..

 

[delancyst]

I registered mine at mysony Sg. Like i registered other sony products.

Somehow I think the website was screwed up. Emailed Sony and they registered it for me.

 

[MichaelLee]

need to have digital zoom enabled - select clear image zoom. it only works in jpeg as well. no raw

just my thought, to shoot with 19mm in FF mode. and manually crop out the vignetting during PS. may be the effective range after the cropped, will be around 22mm. Would that work ?