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Thread started 07 Apr 2011 (Thursday) 00:06
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Zeiss 35mm F/1.4 Distagon ZE

 
Ouessant
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Feb 14, 2012 03:16 |  #421

When did you buy it ? You can try to explain the issue to your dealer. Show him those soft shots and ask for a replacement.


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J-B
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Feb 14, 2012 03:17 |  #422

Auriga, you can always have the bad luck of getting a mediocre copy, but I'm not sure if this is one. To me it looks like you're slightly missing the focus, mostly front focussing.
Have you tried focussing with liveview on a tripod? That way you can be totally sure if the lens is soft or you are mis focussing. You really have to be extremely precise.

When shooting a lens wideopen, focus shift is just not possible.
It happens when stopping it down. You focus a lens wideopen. If you want to stop it down, it does it when you press the shutter button. When the focus plane at that moment moves away from the intented target, you talk about focus shift.

(The canon 50L and zeiss 85mm are well known examples of lenses that have focus shift.)


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ecka
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Feb 14, 2012 05:46 |  #423

auriga wrote in post #13879556 (external link)
here's an example of missed focus, at f2...incredible.
I've never had these kin of issues!

auriga wrote in post #13894349 (external link)
i post some other examples at 1.4....i'm very upset and angry

It is hard to judge the lens without the original samples, these could be affected by poor jpg compression (less than 100kb), jubject movement, bad post-processing (like too strong noise reduction) or camera settings. You can't blame manual focus lens for front/back focusing, it is entirely photographers fault. However, the "focus shift" issue should be a big enough reason for returning the lens or replacing it with another copy.


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auriga
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Feb 14, 2012 08:00 |  #424

no poor compression or bad post-processing or noise reduction.
Shoots are original as they came from camera.
Why should I post processed pictures?
I'm trying to understand how you can spend all this money and get this great problem, I would say fundamental issue FOCUS MISTAKE
I wrote to zeiss and showing them some examples, such as those posted here
do not admit that the lens may be defective, they ask me to send it in gremany to perform some checks or tests...
I hope they replace it, I am sure that the lens is defective...
DAMN!




  
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auriga
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Feb 14, 2012 09:40 |  #425

i see pictures of Noodlz...are they post-processed...like sharpness ecc...
if the photos are original, as the cemera shoot them, so my lens is faulty!




  
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ecka
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Feb 14, 2012 12:39 |  #426

auriga wrote in post #13895602 (external link)
i see pictures of Noodlz...are they post-processed...like sharpness ecc...
if the photos are original, as the cemera shoot them, so my lens is faulty!

I'm pretty sure that Noodlz did a fair amount of PP on his images. Don't expect your out of the camera photos to look THAT great :). I mean, there should be a decent image quality, because we are talking about an expensive fast prime lens here, but you must learn how to edit your shots to make them look the way you want. There must be a reason why you bought this lens, if it is because you saw a lot of other peoples high quality photographs on this forum, then you have to realize that it is due to their photography and post-processing skills, not just expensive equipment.


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auriga
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Feb 15, 2012 05:19 |  #427

you cannot focus in liveview...a photographer have to focus normally!
On zeiss site there is an article where they explain the focus shift ... almost as a justification
I'm starting to believe that the lens is designed so...soft and zeiss can not repair or replace it...




  
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ecka
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Feb 15, 2012 07:19 |  #428

auriga wrote in post #13900925 (external link)
you cannot focus in liveview...a photographer have to focus normally!
On zeiss site there is an article where they explain the focus shift ... almost as a justification
I'm starting to believe that the lens is designed so...soft and zeiss can not repair or replace it...

I don't really understand why you cannot focus in LiveView. It depends on how camera's exposure simulation works. If it is using the actual aperture setting you've dialed then focus shift is not a problem at all. If it uses the widest aperture for exposure simulation then you have to use DoF preview button to avoid the focus shifting. I thought that you are talking about incorrect PDAF focus confirmation caused by that focus shift thing. IMHO, there is nothing you can do about it. However, LiveView should work just fine. 5D2 uses the widest aperture for stills exposure simulation, but it uses the actual aperture setting for movie display. Try this:
Menu >> Live View/Movie func. set. >> LV func. setting >> Stills+movie >> Movie display
This way there won't be any focus shifting in LiveView.


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J-B
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Feb 15, 2012 13:22 |  #429

Auriga, I use liveview a lot. Not a problem at all.

Did you even read my last words about focus shift? You clearly have no clue of what it is. Shooting a lens wide open NEVER causes focus shift, only when stopping it down.

If you want more info, here's a link:
What's focus shift? (external link)

I still believe there might be nothing wrong with your lens. You just rely on the focus comfirmation, big mistake.


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light_pilgrim
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Feb 15, 2012 13:31 |  #430

auriga wrote in post #13900925 (external link)
I'm starting to believe that the lens is designed so...soft and zeiss can not repair or replace it...

If you really want to face the problem and find a solution for you, read the story:
http://www.flickr.com …iscuss/72157628​649986357/ (external link)

It is my personal experience with this lens where I went from completely emotionally destroyed and unhappy to extremely happy user of this lens.

This looks sharp to me, nothing wrong with the design of the lens:

IMAGE: http://farm8.staticflickr.com/7145/6737822133_3d539105dc_z.jpg
IMAGE: http://farm8.staticflickr.com/7154/6737822761_bc66ee9d9e_z.jpg

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J-B
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Feb 15, 2012 13:39 |  #431

light_pilgrim wrote in post #13903042 (external link)
It is my personal experience with this lens where I went from completely emotionally destroyed and unhappy to extremely happy user of this lens.

Great to hear, once again shows we were right with saying this lens needs practice.
;)


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light_pilgrim
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Feb 15, 2012 14:09 |  #432

J-B wrote in post #13903096 (external link)
Great to hear, once again shows we were right with saying this lens needs practice.
;)

Not exactly you were right:-) The first copy had problems and it was confirmed by Zeiss. Second copy was good and I did not have problems with it.


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SMichaelPhoto
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Feb 15, 2012 14:38 |  #433

Looks more like a focus screen adjustment issue to me.




  
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x.pozhr
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Feb 15, 2012 18:15 as a reply to  @ SMichaelPhoto's post |  #434

Wide open -

IMAGE NOT FOUND
IMAGE IS A REDIRECT OR MISSING!
HTTP response: 404 | MIME changed to 'text/html' | Byte size: ZERO

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David ­ Arbogast
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Feb 15, 2012 22:40 as a reply to  @ x.pozhr's post |  #435

^Cool shot! Unless you were focusing on your beautiful dog... :lol:
Looks like a much-enjoyed fetching ball.


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Zeiss 35mm F/1.4 Distagon ZE
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