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Sony a7R + new Canon 16-35 F/4 IS + Metabones IV
  
 
pixelreaper
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p.1 #1 · Sony a7R + new Canon 16-35 F/4 IS + Metabones IV


Below is a sample I took today at 16mm f/11 on the new F/4 IS adapted to my Sony a7r. Shot in Raw, converted in LR5 with no post other than Sharpening 70 Radius 0.8.

So far, I am pleased with the lens vs. my Canon 17-40. It's bigger than the 17-40 but very light for it's size. The IS is a great addition making this an awesome hiking lens. the crops below are from the extreme corners of the frame.

Until Sony / Zeiss puts out a decent Native WA Zoom, this will be my new walk around landscape lens.

Dimitri







full frame







upper right







upper left







lower left







lower right




Jun 25, 2014 at 02:58 AM
rscheffler
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p.1 #2 · Sony a7R + new Canon 16-35 F/4 IS + Metabones IV


Is it necessary to stop down to f/11 for decent edge performance? Just wondering...
I have the 16-35/2.8 II and have never really been happy with its technical performance.



Jun 25, 2014 at 03:28 AM
tarzan1234
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p.1 #3 · Sony a7R + new Canon 16-35 F/4 IS + Metabones IV


Very impressive corner sharpness. I think it could have done better though. F/11 is probably not the optimum aperture on your A7R in terms of sharpness because of diffraction.


Jun 25, 2014 at 03:57 AM
pixelreaper
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p.1 #4 · Sony a7R + new Canon 16-35 F/4 IS + Metabones IV


I normally shoot landscape b/w f/8-f/16. I found the corners are sharp even at f/5.6. I did not test f/4 yet.

rscheffler wrote:
Is it necessary to stop down to f/11 for decent edge performance? Just wondering...
I have the 16-35/2.8 II and have never really been happy with its technical performance.




Jun 25, 2014 at 04:43 AM
rscheffler
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p.1 #5 · Sony a7R + new Canon 16-35 F/4 IS + Metabones IV


OK, thanks. Good to know. The early samples released by Canon were quite disappointing in the corners/edges at f/8 and wider...


Jun 25, 2014 at 04:51 AM
Beni
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p.1 #6 · Sony a7R + new Canon 16-35 F/4 IS + Metabones IV


Is it just me or does the top left corner just look like mush?


Jun 25, 2014 at 05:57 AM
Phillip Reeve
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p.1 #7 · Sony a7R + new Canon 16-35 F/4 IS + Metabones IV


I would really like some images at f/8 or f/11, in these samples I am not sure whether the lens is a little worse than I had hoped for or if the corners are simply a little out of focus


Jun 25, 2014 at 06:08 AM
justruss
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p.1 #8 · Sony a7R + new Canon 16-35 F/4 IS + Metabones IV


Beni wrote:
Is it just me or does the top left corner just look like mush?


Mush might be a little dramatic. But it definitely has that UWA extreme-corner smeariness. The question is what beats it right now?



Jun 25, 2014 at 06:44 AM
ebrandon
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p.1 #9 · Sony a7R + new Canon 16-35 F/4 IS + Metabones IV


justruss wrote:
Mush might be a little dramatic. But it definitely has that UWA extreme-corner smeariness. The question is what beats it right now?


Impossible to know just by looking at one sample image, but one suggestion that might beat it is the Nikon 18-35mm G.



Jun 25, 2014 at 07:20 AM
dpap1978
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p.1 #10 · Sony a7R + new Canon 16-35 F/4 IS + Metabones IV


That would be a great comparison


Jun 25, 2014 at 02:20 PM
 

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2ndviolinman
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p.1 #11 · Sony a7R + new Canon 16-35 F/4 IS + Metabones IV


I got my 16-35 f/4 IS yesterday, and even on 5Dii it looks better @f/8 than @f/11. Also, I'm not getting the kind of CA I see in that sample. No purple anywhere, and I shot a lot up into the tree branches on a cloudy bright day looking for it, too. It's almost spooky.

The corners seem to be picky about where you focus it.

Sorry for the non Alt post, but I think for comparative discussion it is allowed. To me, Canon lenses on a 5D feel Alt



Jun 25, 2014 at 02:25 PM
mogul
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p.1 #12 · Sony a7R + new Canon 16-35 F/4 IS + Metabones IV


Like most Canon wide angles, this lens is not showing very well on a high resolution sensor.


Jun 25, 2014 at 02:37 PM
pixelreaper
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p.1 #13 · Sony a7R + new Canon 16-35 F/4 IS + Metabones IV


+1

You should see the corners on the FE Zeiss 24-70 at 24mm that I returned. Like an impressionest painting!

justruss wrote:
Mush might be a little dramatic. But it definitely has that UWA extreme-corner smeariness. The question is what beats it right now?




Jun 25, 2014 at 07:10 PM
dpap1978
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p.1 #14 · Sony a7R + new Canon 16-35 F/4 IS + Metabones IV


Exactly. I am not sure how much better the zeiss 21mm will be on the a7r


Jun 25, 2014 at 07:34 PM
sangdabom73
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p.1 #15 · Sony a7R + new Canon 16-35 F/4 IS + Metabones IV


dpap1978 wrote:
Exactly. I am not sure how much better the zeiss 21mm will be on the a7r


ZE21 works pretty well with a7r.

Here are screenshot of 100% extreme corners without any pp whatsoever at F5.6





























Jun 25, 2014 at 07:45 PM
JimUe
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p.1 #16 · Sony a7R + new Canon 16-35 F/4 IS + Metabones IV


Samyang 14 ?


Jun 25, 2014 at 09:11 PM
killersnowman
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p.1 #17 · Sony a7R + new Canon 16-35 F/4 IS + Metabones IV


I shot the 16-35/4 IS L tonight on the A7r. From preliminary inspection it looks good. I didn't shoot it as a pixel peeper, i shot it as a shooter. Ill process the images tomorrow and get back to everyone


Edit: one thing I can say upfront is that what ever coating they put on the front of this thing is really good. I was shooting in a ton of salt spray and it wiped off clean. With minimal effort. Very nice

Edited on Jun 26, 2014 at 07:07 AM · View previous versions



Jun 26, 2014 at 05:53 AM
Fssv
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p.1 #18 · Sony a7R + new Canon 16-35 F/4 IS + Metabones IV


Hi pixelreaper, how fast speed autofocus Metabones IV ?


Jun 26, 2014 at 06:54 AM
Beni
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p.1 #19 · Sony a7R + new Canon 16-35 F/4 IS + Metabones IV


justruss wrote:
Mush might be a little dramatic. But it definitely has that UWA extreme-corner smeariness. The question is what beats it right now?


I'd love to see the Nikon 14-24 corners on the A7r.



Jun 26, 2014 at 02:43 PM
pixelreaper
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p.1 #20 · Sony a7R + new Canon 16-35 F/4 IS + Metabones IV


I did not see a noticable improvment over the MkIII. That is to say is is still too slow for anything but static objects. It does lock fairly consistently though.

Fssv wrote:
Hi pixelreaper, how fast speed autofocus Metabones IV ?




Jun 26, 2014 at 06:30 PM
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