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The Sony A7 thread [Merged]


dmclalla

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From the sample images posted online todate, i think i may opt for the zeiss 85mm 1.4 and use the sony adapter rather than wait for the FE version to be released . Same also applies to the 100mm macro lense.

 

Sample images had which lens, sorry? The 2014 FE or the adapted 85?

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From the sample images posted online todate, i think i may opt for the zeiss 85mm 1.4 and use the sony adapter rather than wait for the FE version to be released . Same also applies to the 100mm macro lense.

 

The ZA 85/1.4 is fantastic but it's a large piece of metal and glass, and weights around 550 grams. I have used it for 3 years on the A900 and it was my favourite lens.

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The A7r has angled micro lenses, the A7 doesn't.

If you are buying the body to shoot your Leica lenses on you need the A7r, or to wait for the test reports to decide.

Saying that, the Sony 35mm and 55mm lenses look pretty stunning

 

 

 

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Sample images had which lens, sorry? The 2014 FE or the adapted 85?

 

The adapted 85mm f1.4 i believe, as the details given for the image indicate the adapter being used and the FE lense is f1.8

 

Sony Global - Sony Global - Digital Imaging - α7R

 

It is the 7th image in ie girl on bed dressed in white

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The A7r has angled micro lenses, the A7 doesn't.

If you are buying the body to shoot your Leica lenses on you need the A7r, or to wait for the test reports to decide.

Saying that, the Sony 35mm and 55mm lenses look pretty stunning

 

 

 

Sent from my iPad using Tapatalk - now Free

 

Not to mention the existing ZA lenses like the 85mm f1.4 but whch will need one of the sony adapters :)

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The ZA 85/1.4 is fantastic but it's a large piece of metal and glass, and weights around 550 grams. I have used it for 3 years on the A900 and it was my favourite lens.

 

85mm when i used Nikon was my favourite focal length.

 

I dont know :confused: and i am only speculating and i hope someone here either agrees or says otherwise, but i am assuming that the existing A mount has a larger diameter than the FE mount and hence the need for an adapter and as such, the sensor in the A7 does not see the image from the edge of the lense ie kind of like the sweet spot effect when using an E mount lense on the full frame alpha's. :rolleyes:

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I dont know :confused: and i am only speculating and i hope someone here either agrees or says otherwise, but i am assuming that the existing A mount has a larger diameter than the FE mount and hence the need for an adapter and as such, the sensor in the A7 does not see the image from the edge of the lense ie kind of like the sweet spot effect when using an E mount lense on the full frame alpha's. :rolleyes:

 

No that is not how it works. The adapter does not crop the image in any way. And the sizes of the lens mounts are irrelevant in this situation.

 

There are two Sony A lens to E full frame camera adapters. One, the EA3, has no glass in it at all and simply positions the lens far enough from the sensor for correct focusing. (Since the A7 body is thinner than the Alpha SLT and DSLR bodies and thus has a shorter lens flange to focal plane distance.) The other adapter, EA4, is similar but has an angled semi transparent mirror that reflects about 20% of the light to a phase detect auto focus sensor that communicates with the A7's focusing system.

 

The reason to use the EA4 is for faster and/or more accurate auto-focusing in some situations. How much better a job the EA4 does has yet to be fully illustrated, but might be a good reason why Sony is not moving over completely to full frame E mount lenses, especially for longer glass. The A7 has PD areas on the imaging sensor but the A7r does not. So I suspect there will be a bit more benefit to using the EA4 adapter on the A7r than on the A7.

 

If you plan to use 3rd party lenses you won't be using either adapter.

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Thanks AlanG, that is a very clear explanation that i understand :-)

 

I have my A7r on pre-order and my initial thoughts were to use it with my leica lenses, but the image quality that i have seen so far with both the FE and ZA lenses is making me rethink all of that.

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Thanks AlanG, that is a very clear explanation that i understand :-)

 

I have my A7r on pre-order and my initial thoughts were to use it with my leica lenses, but the image quality that i have seen so far with both the FE and ZA lenses is making me rethink all of that.

 

I know a lot of people are anxious but there also seems to be a minor industry in jumping to conclusions. I don't even think anyone has done actual testing of Leica lenses on an A7r. Additionally I wouldn't form a conclusion about what is the maximum quality that would be possible from any particular M lens until after applying any appropriate corrections directly on a raw file. Consider that Leica sees the need for this with the M also but has it built in. However there is the possibility that even after correction the results from some lenses and some F stops will not be as good as by using an M.

 

I'd advise patience but few seem interested in that when speculation is a possible use for dozens of pages of posts that we can mull over to burn up excess time in our lives.

 

I am not sure how many are aware that with some medium format digital cameras, it is common to shoot calibration images at different apertures using a piece of white Plexiglass in front of the lens. (Mostly, but not exclusively needed due to off axis camera movements.) These Lens Cast Calibration files (LCC) are used by programs such as Capture One to correct vignetting and color fall off for that particular lens.

 

While simpler methods can be used to correct vignetting and color cast, and some can be performed automatically by the raw converter, I think this would be an advanced way to do it with Leica lenses on an A7r for demanding applications.

 

Editing photos (lens correction)

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We will just have to wait for the testing on the WA M lenses. I will be at PhotoPlus on Thursday, October 24. Unfortunately I can not find anyone attending the show that has any WA 21mm or 24mm M lenses. I have the adapters for the M lenses and only a 40mm lens along with an adapter and assortment of R lenses. For me, I am pretty covered for lenses 40mm? and longer MF lenses. It is just the 21 and the 28mm that I am hoping and praying for.

 

Hopefully Sony will let me mount the lenses onto the A7r.

 

Rich

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I know a lot of people are anxious but there also seems to be a minor industry in jumping to conclusions. I don't even think anyone has done actual testing of Leica lenses on an A7r. Additionally I wouldn't form a conclusion about what is the maximum quality that would be possible from any particular M lens until after applying any appropriate corrections directly on a raw file. Consider that Leica sees the need for this with the M also but has it built in. However there is the possibility that even after correction the results from some lenses and some F stops will not be as good as by using an M.

 

I'd advise patience but few seem interested in that when speculation is a possible use for dozens of pages of posts that we can mull over to burn up excess time in our lives.

 

I am not sure how many are aware that with some medium format digital cameras, it is common to shoot calibration images at different apertures using a piece of white Plexiglass in front of the lens. (Mostly, but not exclusively needed due to off axis camera movements.) These Lens Cast Calibration files (LCC) are used by programs such as Capture One to correct vignetting and color fall off for that particular lens.

 

While simpler methods can be used to correct vignetting and color cast, and some can be performed automatically by the raw converter, I think this would be an advanced way to do it with Leica lenses on an A7r for demanding applications.

 

Editing photos (lens correction)

 

Thank you for raising this. Alan - it is an issue that has been bothering me for a while.

 

Can I ask for clarification, from a layman's perspective?

 

A raw file is simply the data off the sensor, with some adjustments by the user (white-balance setting) and the firmware (distortion and colour cast) on the way through. My understanding is that, provided the original data is within the limits of the sensor (dynamic range) so that all relevant detail is captured, you can adjust pretty much anything in post processing.

 

In that regard, Leica's camera and lens profiles are simply adjustments that could be done in LightRoom, Capture One, Aperture or Photoshop, but Leica has undertaken what could be a complex and tedious task for us. So, the complaints about the white balance with the M240, or wides on the M9 could have been dealt with in post processing, by someone with the relevant skills, and saved as profiles never to be looked at again. For example, someone pointed out that automatic white balance was a waste of time generally, and you should either just set your white balance at 5,500 Kelvin and leave it there (was it Jono?) or use a white balance card (Thorsten). This makes sense to me, and really causes me less concern about the performance of Leica M lenses on the A7r. If the image is worth it, it can be fixed.

 

Assuming that I am right, I would be very grateful, Alan, if you could point me in the direction of a good step by step guide to making these profiles in LightRoom (preferably - I know RTFM! but if someone has been there before, why not shorten the journey).

 

The real issue to me is smearing and lack of clarity in corners and edges to the point where it detracts from the image. On a large print, I have to accept it will detract from the image. This is an insoluble hardware problem.

 

On a more heartening note, some here have said that the words "Leica lenses" do not feature in the Sony marketing vocabulary. Not true! I was looking at a Foto TV interview with Mr Nogami, from Sony's marketing division in Tokyo - in that interview, he makes the comment that it will take time for new lenses to be released for the new cameras, but the A7r has been designed to be used with Canon, Nikon and Leica lenses.

 

Now, I don't read too much into this, but it is quite wrong to say that Leica doesn't feature in Sony's strategy - they are at least aware (and suggesting) that the A7r will be purchased by people to use with Leica lenses.

 

This gives me some hope.

 

Cheers

John

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I can just see the poor Sony representative trying to hold back a scrum of Leica owners clutching their wide angle lenses and waving about their SD cards! You should also bring your own testing charts, tripod and lightboxes - we're a discerning bunch you know. Nothing more appealing than picking apart someone's testing methods! :D:D

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I can just see the poor Sony representative trying to hold back a scrum of Leica owners clutching their wide angle lenses and waving about their SD cards! You should also bring your own testing charts, tripod and lightboxes - we're a discerning bunch you know. Nothing more appealing than picking apart someone's testing methods! :D:D

 

I was planning on bringing a fresh Sandisk memory card, but only my small Markins Q3 Emille tripod head. Unfortunately I don't have a QR plate available that small for the camera. I will be bringing the Leica R 280mm f4 Apo Telyt lens with a RRS QR plate though. If need be, I will ask to borrow a tripod for a short time from my friends at Manfrotto/Gitzo.

 

Rich

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Exactly! Fruit and vegetables! No lens performance assessment is complete without them.

 

So, if you're hoping to test the camera this Thursday, you need 50-28-24-21-18 & WATE, Novoflex adapter, SD cards, lightbox (and flowers or leaves to test for CA), tripod and a box of vegetables and fruit - I'm rather fond of apples, if you don't mind.

 

;)

 

PS - please also make sure you get your terminology right, and use as many baffling words about your methodology as possible - we will only read the summary for your conclusions on the actual camera, anyway. It's the methodology which really gets us going!

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