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NEX Images Thread
  
 
douglasf13
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p.5 #1 · NEX Images Thread


Ah, yes, I forgot that you could cut off the some of the plastic shields to mount the 21mm.


Jan 12, 2011 at 11:22 PM
akul
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p.5 #2 · NEX Images Thread


Philber - That is quite an amazing detail !! Very powerful shot.

Akul




Jan 13, 2011 at 03:30 AM
philber
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p.5 #3 · NEX Images Thread


Thanks, Akul!



Jan 13, 2011 at 07:25 AM
slungu
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p.5 #4 · NEX Images Thread


Very nice pictures in this thread - give an idea what is possible with the little NEX cameras.
I wanted to ask how you process the files. Coming from that ancient 1Ds I am surprised to see that raw files processed with the Sony software do not seem that sharp, at least not the ones from the CV 15/4.5 and ZM35/2. Portraits shot with the CV 90/3.5 look better. Still I was wondering if you sharped the files in post, since I never sharpened the 1Ds files I got from the 28 and 100 2.0 Zeisses. Is this something that has to be done with the high density sensors of today ?
Another thing I have to practice more is focusing the wides on infinity - does not seem to be that easy, I only got one picture right with the 15mm so far.

Regards, Stefan



Jan 13, 2011 at 07:04 PM
douglasf13
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p.5 #5 · NEX Images Thread


If sharpness is your goal, I would avoid Sony IDC. If you don't want to spend money on the popular converters, try the free Raw Therapee or Raw Photo Processor, both of which give outstanding output.


Jan 13, 2011 at 07:13 PM
philber
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p.5 #6 · NEX Images Thread


I use Lightroom V. 3.3. I tried the Sony software and found it disappointing.


Jan 13, 2011 at 07:48 PM
sebboh
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p.5 #7 · NEX Images Thread


i also use lightroom, but i apply sharpening for downsizing/printing with photoshop.

a shot with the vivitar 28/2 close focus lens.







Jan 13, 2011 at 10:04 PM
philber
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p.5 #8 · NEX Images Thread


Delightful shot, sebboh!


Jan 13, 2011 at 10:08 PM
theprophe
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p.5 #9 · NEX Images Thread


A member on getdpi, claims with the newest kipon adapter, that the contax g biogon 21mm fits without trimming, i will be getting mine hopefully next week to try


Jan 14, 2011 at 12:26 PM
Lotusm50
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p.5 #10 · NEX Images Thread


theprophe wrote:
A member on getdpi, claims with the newest kipon adapter, that the contax g biogon 21mm fits without trimming, i will be getting mine hopefully next week to try



Unless that new Kipon adapter moves the lens back away from camera body (and affecting infinity focus), it's not going to work. Here is a picture of my G 21mm Biogon on a NEX adapter. You can clearly see that the plastic shields extend past the the end of the adapter.



I tried to fit it to my NEX-5. These shields hit the built up flat areas to the top and bottom of the sensor (I know this becuase they left marks there as I tried to mount the lens). For it to fit, you clearly need to trim these shields. The adapter, if the proper lens registration distance is used, has nothing to do with with this. The adapter is not prohibiting the use of the lens.




Jan 14, 2011 at 01:16 PM
 

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Herb1911
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p.5 #11 · NEX Images Thread


Nex 5 with Zeiss Biogon 25mm.







Jan 14, 2011 at 01:31 PM
lepp
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p.5 #12 · NEX Images Thread


Herb1911, great shot & B/W conversion there!


Jan 14, 2011 at 04:38 PM
theprophe
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p.5 #13 · NEX Images Thread


thanks for the pic, and explanation, thats too bad, i'm going to pm him and see why he said that

Lotusm50 wrote:
Unless that new Kipon adapter moves the lens back away from camera body (and affecting infinity focus), it's not going to work. Here is a picture of my G 21mm Biogon on a NEX adapter. You can clearly see that the plastic shields extend past the the end of the adapter. http://www.boncratious.com/images/G21mm&NEXadapter.jpg I tried to fit it to my NEX-5. These shields hit the built up flat areas to the top and bottom of the sensor (I know this becuase they left marks there as I tried to mount the lens). For it to fit, you clearly need to trim
...Show more



Jan 14, 2011 at 05:08 PM
sebboh
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p.5 #14 · NEX Images Thread


Lotusm50 wrote:
Unless that new Kipon adapter moves the lens back away from camera body (and affecting infinity focus), it's not going to work. Here is a picture of my G 21mm Biogon on a NEX adapter. You can clearly see that the plastic shields extend past the the end of the adapter. http://www.boncratious.com/images/G21mm&NEXadapter.jpg I tried to fit it to my NEX-5. These shields hit the built up flat areas to the top and bottom of the sensor (I know this becuase they left marks there as I tried to mount the lens). For it to fit, you clearly need to trim
...Show more

do those fins not just unscrew?



Jan 14, 2011 at 05:13 PM
akul
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p.5 #15 · NEX Images Thread


Sebboh - great macro shot. Initially I was not sure about the bokeh character, but it grew on me.

Herb1911- spectacular shot! BW works perfect.



Jan 15, 2011 at 02:10 AM
Lotusm50
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p.5 #16 · NEX Images Thread


sebboh wrote:
do those fins not just unscrew?



You have to open up the whole mount. I have not done this but it looks like after you take the lens mount off, there are 4 screws holding the shield which appear to be part of the structure that also holds the electrical contacts. I'd have to take it apart to be sure, and I'm really not interested in doing that. I'd trim the shield to use the lens, but only if I knew that I could easily replace them with a new shield to restore the lens' integrity.




Jan 15, 2011 at 02:42 PM
KOJI
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p.5 #17 · NEX Images Thread


Why do you guys have the problem to mount G-Biogon 21/2.8?

I have no problem with my G->E adapter (Kipon-look-a-like) and reach infinity too.
Because of rear protector of the lens I have to mount the adapter to NEX5 FIRST,
then mount the lens to the camera+adapter SECOND. My adapter is > http://www.pbase.com/kkawakami/image/127863088
Although the corners have slight colour shifting, but fixable by CornerFix program as you know.

Actually we are very lucky G-lenses have a kind of breach-mount which does not
require to rotate the lenses to mount them.



Jan 15, 2011 at 03:12 PM
Lotusm50
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p.5 #18 · NEX Images Thread


KOJI wrote:
I have no problem with my G->E adapter (Kipon-look-a-like) and reach infinity too.
Because of rear protector of the lens I have to mount the adapter to NEX5 FIRST,
then mount the lens to the camera+adapter SECOND. My adapter is > http://www.pbase.com/kkawakami/image/127863088



I have a similar adapter (except mine is a near-matching titanium color instead of black) so I tried this technique. Lo and behold, it worked. Those shields have to be right up to and pressing against the sensor surround.

One thing I noticed is that it focuses WAY past infinity, yet ALSO focuses VERY close -- to about 0.3 meters from the sensor plane. The spec for the lens on the Contax G is 0.5 meter to infinity, so we seem to be getting a lot more range out of the lens for some reason. Koji, are you seeing the same thing?




Jan 15, 2011 at 07:48 PM
KOJI
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p.5 #19 · NEX Images Thread


Yes, of course. If you mount the lens (any G-lenses) on G1/2, your lens sits on "the resting position",
which is closer to film position than "infinity" position, to which the camera moves the lens
when you power on the camera. (except G-Hollogon 16mm)
So I knew what you observed will happen when you mount G-lens to NEX or micro4/3 camera.

I have an M-mounted G-Biogon 21mm too, which focuses to 0.3m as you have seen. So no surprise to me.



Jan 15, 2011 at 08:44 PM
tach18k
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p.5 #20 · NEX Images Thread


My new NEX-5, with the 16mm and 100% crop on this flower. Cropped from jpg no pp.










Jan 16, 2011 at 10:42 PM
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