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PostPosted: Tue Apr 02, 2013 9:49 pm 
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Something like this? :mrgreen:

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Two-Pigeons_400f5-6_65267 by Thomas, on Flickr

Sorry, but I have no experience at all with tracking moving subjects and thus could never reach any conclusions as to qualification for BIF...

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PostPosted: Wed Apr 03, 2013 2:27 pm 
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It isn't over until it's over...

Looking again at the results from yesterdays Siemens-stars at 300mm + 400mm I thought that residual shake might have influenced those images. Because at these distances (12m + 16m) I have to go outside and rely on natural light not flash which I use indoors. That brought the exposure times into the danger-zone of 1/60 and below. As I knew from prior experience my tripod shows some resonance at those frequencies when I mount a 1.5-2kg lens.

Today I used a horizontal setup and also mounted the tripod on the camera-body, not the lens. I was able to eliminate all residual shake and the performance at 300mm and 400mm really shines now:
- resolution across the frame at 300/5.6 is almost perfect.
- at 400/5.6 center is still very good and FX-corner resolution is at around 75% of center resolution. I'd qualify this as good.
- almost no astigmatism.

This lens definitely is a keeper!
----
Lessons learned: never trust your tripod...

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PostPosted: Wed Apr 03, 2013 7:24 pm 
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Focus repeatability is excellent with only 1 out of 10 shots slightly out-of-line but no real outliers in 80 controlled test-shots. No preference for coming from infinity or MFD. This matches my experiences from real-life shooting: AF is always spot on.

Speed of AF from infinity to 2.8m about 0.6 sec. This is as fast as the Nikon AF-S 70-200/2.8G VR II (from infinity to 1.4m).

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PostPosted: Thu Apr 04, 2013 6:25 pm 
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And here's the other ugly side of this lens apart from the flimsy tripod-collar: longitudinal CA (captured at 105/4.8, 100% crop)!

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Longitudinal CA 65606 crop by Thomas, on Flickr

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PostPosted: Fri Apr 05, 2013 4:11 pm 
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Btw. my review is almost done. A sneak-preview with all the optical results neatly lined up can be found here. It also shows that loCA is not a real danger under noral shooting circumstances.

There are still some tests to be done (and a lot of write-up) e.g. for the VR etc. before I come to my verdict and recommendation. So stay tuned!

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PostPosted: Fri Apr 05, 2013 6:57 pm 
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Great stuff Thomas.
Surprised 300mm seems weaker than 400mm, but it looks good so far.

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PostPosted: Fri Apr 05, 2013 9:16 pm 
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Due to popular demand here's another comparison between the 80-400 and the Nikon AF-S 70-200/2.8G VR II at 200mm f5.6 (100% crop):

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Nikon 70-200vs80-400_200f5-6 by Thomas, on Flickr
38912116@N00

Those shots were (obviously) taken at different days and the 80-400 profits from the sun making the contrast pop. But look at the level of detail in both shots (e.g. the twigs, the curtains) and you'll find they are comparable.

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PostPosted: Fri Apr 05, 2013 10:03 pm 
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Nice work as always Thomas! Looks like a great lens!


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PostPosted: Fri Apr 05, 2013 10:22 pm 
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Here's something more readily comparable (2nd row is the Nikon AF-S 70-200/2.8G VR II):

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Nikon 70-200vs80-400_200f5-6_stars by Thomas, on Flickr

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PostPosted: Thu Apr 25, 2013 8:07 pm 
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My review is now updated with all results, a full set of sample images and the verdict.
Read it all over here.

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PostPosted: Thu Apr 25, 2013 11:32 pm 
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A good review Thomas. It seems like a really good lens.

One thing confuses me though. The web page title is "Nikkon Nikkor 70-200mm f2.8 VR II review | Cameralabs". I guess this needs to be updated?

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PostPosted: Fri Apr 26, 2013 5:54 am 
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Hmm, where did you see this, cujo?

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PostPosted: Fri Apr 26, 2013 6:00 am 
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On this site, the description in the browser's Tab reads "Nikon Nikkor 70-200mm f2.8 VR II review Cameralabs"

The attention to detail in this forum... :D

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PostPosted: Fri Apr 26, 2013 10:05 am 
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Woor is correct and I also saw it in the source for the page.

<meta name="keywords" content="Nikon 70-200mm, Nikon 70-200mm f2.8, Nikon 70-200mm f2.8 review, Nikon 70-200mm f2.8 sample images">
<meta name="description" content="Looking for a Nikon 70-200mm f2.8 VR II review? I compared it against the 70-200mm f4 to help you choose the best Nikon telephoto zoom!">

<title>Nikon Nikkor 70-200mm f2.8 VR II review | Cameralabs</title>

Hope this bit of information help you to correct it.

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PostPosted: Fri Apr 26, 2013 7:55 pm 
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Can't see it myself - but thanks for the heads-up.
I'll bring it to Gordon's attention.

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