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Archive 2012 · Need your opinion about my D7K
  
 
eltano
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p.1 #1 · p.1 #1 · Need your opinion about my D7K


I think that my D7K is not taking pics sharp enouugh.

I took many pics of my just bloomed orchid, with a 35 1.8, a 50-150 2.8 and a 100 2.8 macro.

Also I changed the F stops, from F4 all the way to F22, on a tripod and with shutter cable.

Personally I'm not really happy, I was expecting to be more sharp. What you guys think?

Thanks for C&C

Eltano




  NIKON D7000    35.0 mm f/1.8 lens    35mm    f/3.2    1/1250s    100 ISO    -0.7 EV  






  NIKON D7000    50.0-135.0 mm f/2.8 lens    80mm    f/5.0    1/640s    100 ISO    -0.7 EV  






  NIKON D7000    100.0 mm f/2.8 lens    100mm    f/11.0    1/160s    100 ISO    -0.7 EV  






  NIKON D7000    100.0 mm f/2.8 lens    100mm    f/22.0    1/50s    100 ISO    -0.7 EV  




Nov 17, 2012 at 11:32 PM
NathanHamler
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p.1 #2 · p.1 #2 · Need your opinion about my D7K


Look sharp to me...


Nov 17, 2012 at 11:43 PM
MikeW
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p.1 #3 · p.1 #3 · Need your opinion about my D7K


dont know where you focused but I guess they look sharp enough. Did you MF? Anything macro I MF.






Nov 17, 2012 at 11:44 PM
NathanHamler
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p.1 #4 · p.1 #4 · Need your opinion about my D7K


Granted it's tough to judge, as the flower isnt crazy detailed, ...these arent 100% crops either i'm assuming...maybe upload something with more detail, and a full crop..


Nov 17, 2012 at 11:46 PM
eltano
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p.1 #5 · p.1 #5 · Need your opinion about my D7K


They are barely crop, and did not MF either.

I shoot in A mode, then converted the RAW files to Jpgs with LR4, retouching a little bit here and there.

Eltano



Nov 18, 2012 at 12:15 AM
james.d53
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p.1 #6 · p.1 #6 · Need your opinion about my D7K


There is a focus issue with some. A friend of mine sent hers back to Nikon when it was in warranty and they fixed it.

I don't think it is tack sharp.



Nov 18, 2012 at 12:25 AM
Derek Weston
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p.1 #7 · p.1 #7 · Need your opinion about my D7K


eltano wrote:
They are barely crop, and did not MF either.

I shoot in A mode, then converted the RAW files to Jpgs with LR4, retouching a little bit here and there.

Eltano


I assume you've shot in manual and know it's sharp there? This is an autofocus problem right? How are you autofocusing?



Nov 18, 2012 at 12:34 AM
NathanHamler
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p.1 #8 · p.1 #8 · Need your opinion about my D7K


Just work on one lens, say your 35mm, at f/2.8... shoot center point af, af-s mode, and always focus on the same spot at like 6 feet...take a bunch of shots, and see if any are front or back focused....then af fine tune if needed, and report back to us....


Nov 18, 2012 at 12:43 AM
krickett
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p.1 #9 · p.1 #9 · Need your opinion about my D7K


Looks pretty sharp to me. You can see the textures on the yellow leaf.

Note that the lighting situation is pretty harsh... that can cause perceived loss of contrast.



Nov 18, 2012 at 01:40 AM
NickHenderson
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p.1 #10 · p.1 #10 · Need your opinion about my D7K


Looks fine.


Nov 18, 2012 at 01:57 AM
 

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snapsy
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p.1 #11 · p.1 #11 · Need your opinion about my D7K


Hard to tell at the image sizes presented. A 100% crop would be useful. Keep in mind the resolution on any bayer sensor for those colors will be lower than more neutral or green content.


Nov 18, 2012 at 02:16 AM
Dustin Gent
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p.1 #12 · p.1 #12 · Need your opinion about my D7K


It is hard to say - as others have stated. Shoot with 100mm 2.8 and use a larger aperture for better bokeh - it should be sharp. Are you using LV? That will help as well


Nov 18, 2012 at 02:38 AM
Jan Brittenson
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p.1 #13 · p.1 #13 · Need your opinion about my D7K


The 35mm shot is back focused on the plane of the green leaf.
The 85mm shot looks the same or worse.
The 100mm looks slightly back focused on the rear of the petals in the first shot.

100mm f/22 will always have some global contrast loss due to diffraction.

The lenses can all use a bit of negative AF tune on that body.



Nov 18, 2012 at 07:08 AM
eltano
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p.1 #14 · p.1 #14 · Need your opinion about my D7K


I tried to take some pics with the 100mm, shooting from F11 and up, but nothings has changed.
I went over the settings, did no found anything out of the ordinary. I think that the camera is the culprit.

Thanks guys for the comments and suggestion.

Eltano



Nov 18, 2012 at 04:02 PM
workerdrone
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p.1 #15 · p.1 #15 · Need your opinion about my D7K


and to be clear, you are suspecting that your AF is having an issue?

or that your camera itself is not sharp somehow.

Because almost any photo that you see online that looks sharp has had sharpening applied in post processing.

Quick 'n dirty example - with a D7000, 50 1.8G wide open - before (straight out of camera), after (quick 'n dirty contrast, saturation, sharpen)

Hmm, this is a lot more dramatic on my pc rather than in small forum images

I'm a big fan of the D7000 but mine needed a fair amount of fine tuning to my lens collection, up to -20 on some copies.












Nov 18, 2012 at 04:20 PM
eltano
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p.1 #16 · p.1 #16 · Need your opinion about my D7K


What makes me wonder that no matter what lens I use, still no sharp enough.

In your pics, for me the first looks better than the second, but that is my opinion, which no necessary is the true.

Now I'm wonder how much will cost me to have the camera check for issues.

Eltano



Nov 18, 2012 at 05:42 PM
James Burden
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p.1 #17 · p.1 #17 · Need your opinion about my D7K


If my camera took pics like that I'd be looking to AF tune or send it in......since it's with all lenses I vote send it in for a calibration.


Nov 18, 2012 at 06:04 PM
MalbikEndar
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p.1 #18 · p.1 #18 · Need your opinion about my D7K


Focus mode used?

Was it windy?

By the way, if you're doing a flower with a tripod, live view/ manual focus might be a good idea.




Nov 18, 2012 at 06:29 PM
eltano
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p.1 #19 · p.1 #19 · Need your opinion about my D7K


AFS, Aperture priority, 11 points focus, tripod, shutting with cable (I was no touching the camera to shoot, only to focus, no wind at all.

Somebody has any idea the cost for calibration?

Eltano



Nov 18, 2012 at 06:44 PM
workerdrone
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p.1 #20 · p.1 #20 · Need your opinion about my D7K


Yes, the cost of fine tuning your body to lenses = free and very simple to do yourself

If there really is a problem with the body beyond fine tuning's capability to fix, then you'll have to send it in for service. But yours looks very close already so I wouldn't worry.

I'm still not clear on if you are sure that the AF is the issue; your photos look pretty sharp especially the last couple, but it's hard to tell in small web pix. If you manually focus using live view on the tripod, are the photos then as sharp as you expect?

There are a bunch of threads on fine tuning, here's one example

http://www.fredmiranda.com/forum/topic/1152225/0

One last comment - for these types of photos (near macro to macro), I wouldn't be using AF anyway myself, I'd find it annoying



Nov 19, 2012 at 12:19 PM
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