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Tamron 150-600mm gets DxOmarked!
  
 
Pixel Perfect
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p.6 #1 · p.6 #1 · Tamron 150-600mm gets DxOmarked!


Doug Maclean wrote:
And not for nothing went through your entire site.Your photographs are that of a fantastic photographer and I loved so many of them.A Joy to view.Your skills and vision and end result are something to be proud of.But as far as BIF I do not see much there.


Hey can you send me a link to my site, as I didn't realise I had one.

I have posted many a BIF photo here BTW.



Feb 20, 2014 at 05:11 AM
ebonyeyes
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p.6 #2 · p.6 #2 · Tamron 150-600mm gets DxOmarked!


nice lens and great work


Feb 20, 2014 at 06:55 AM
cameron12x
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p.6 #3 · p.6 #3 · Tamron 150-600mm gets DxOmarked!


Pixel Perfect wrote:
Hey can you send me a link to my site, as I didn't realise I had one.


That's one of the funnier posts I've read in quite awhile!



Feb 20, 2014 at 11:30 AM
Pixel Perfect
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p.6 #4 · p.6 #4 · Tamron 150-600mm gets DxOmarked!


Here's some BIF shots just for Don using my crazy arsed back button focus




  Canon EOS-1D Mark II    100.0-400.0 mm lens    400mm    f/5.6    1/2500s    400 ISO    +1.0 EV  






  Canon EOS-1D Mark III    EF300mm f/2.8L IS USM +1.4x lens    420mm    f/9.0    1/1000s    400 ISO    +1.3 EV  






  Canon EOS-1D X    EF500mm f/4L IS II USM +2x III lens    1000mm    f/9.0    1/1000s    320 ISO    +0.7 EV  






  Canon EOS 5D Mark III    EF100-400mm f/4.5-5.6L IS USM lens    400mm    f/6.3    1/1000s    320 ISO    +0.7 EV  






  Canon EOS 5D Mark III    EF100-400mm f/4.5-5.6L IS USM lens    400mm    f/5.6    1/1250s    1000 ISO    +1.0 EV  




Feb 20, 2014 at 12:04 PM
Maui5150
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p.6 #5 · p.6 #5 · Tamron 150-600mm gets DxOmarked!


Really beautiful shots, Karl


Feb 20, 2014 at 02:08 PM
Doug Maclean
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p.6 #6 · p.6 #6 · Tamron 150-600mm gets DxOmarked!


Had no idea an Iphone had a back focus button.Awesome work.


Feb 21, 2014 at 02:55 AM
ekip14
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p.6 #7 · p.6 #7 · Tamron 150-600mm gets DxOmarked!


It looks sharp.


Mar 05, 2014 at 11:48 AM
dc9mm
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p.6 #8 · p.6 #8 · Tamron 150-600mm gets DxOmarked!


You guys compared WRONG sigma lens. The sigma 150-500 OS has always been a dog of a lens. Compare it against the Sigma 50-500 OS. that's there good long lens










Mar 12, 2014 at 08:57 PM
johnctharp
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p.6 #9 · p.6 #9 · Tamron 150-600mm gets DxOmarked!


dc9mm wrote:
You guys compared WRONG sigma lens. The sigma 150-500 OS has always been a dog of a lens. Compare it against the Sigma 50-500 OS. that's there good long lens



*Their

Also, you picked the 5D II for the Tamron, and the 5D III for the Sigma. Internet, HTF does it work?!



Mar 12, 2014 at 09:16 PM
johnctharp
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p.6 #10 · p.6 #10 · Tamron 150-600mm gets DxOmarked!


Here's a better example, courtesy of DxOMark:





Mar 12, 2014 at 09:33 PM
 

Search in Used Dept. 



Imagemaster
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p.6 #11 · p.6 #11 · Tamron 150-600mm gets DxOmarked!


pKai wrote:
I walked away with the impression that Tamron does care about this and is far from clueless -- contrary to some of what's been said here and elsewhere by some.


And here we are three weeks later, and still no word from Tamron.



Mar 12, 2014 at 10:26 PM
kiwijoslin
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p.6 #12 · p.6 #12 · Tamron 150-600mm gets DxOmarked!




jjbird wrote:
My lens and 7D body will arrive at Tamron NY, today for testing by Pat Simonetti. We all should know something by mid week, being a officer in a large camera club I was also able to test two other 7D bodies all having the same results, tacking problems in Aiservo and constant focus pumping in order to achieve in focus images on BIF.

Jay


Any news?



Mar 13, 2014 at 01:29 AM
dc9mm
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p.6 #13 · p.6 #13 · Tamron 150-600mm gets DxOmarked!


Opps picked the wrong camera here is the correct both 5Dmk3 bodies. looks pretty much the same from this. But like I said I have tried the sigma 150-500OS several and they all sucked compared to the Sigma 50-500 OS.








Mar 13, 2014 at 03:17 AM
alundeb
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p.6 #14 · p.6 #14 · Tamron 150-600mm gets DxOmarked!


dc9mm wrote:
Opps picked the wrong camera here is the correct both 5Dmk3 bodies. looks pretty much the same from this.



Take a look at the lens scores explanation and see how useless it is:

http://www.dxomark.com/About/Lens-scores

"DxOMark Score corresponds to an optimal focal length/aperture combination"

So, the Sigma 50-500 at 50mm is equally sharp to the Tamron at 150 mm, which is absolutely meaningless.

Further:

"Lens Metrics Scores are averaged over the whole range of focal length"

If we look further into the data, we see that:
- The Tamron is best at 300-400 mm focal length (which is in opposition to the peak sharpnees measure)
- The Sigma is best at 50-200 mm focal length.

So the lens metric scores totally hide that the Sigma is abysmal at longer focal length where the Tamron shines.



Mar 13, 2014 at 11:34 AM
dc9mm
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p.6 #15 · p.6 #15 · Tamron 150-600mm gets DxOmarked!


Well I never liked any of the tests dxo offers but since this thread started with it I posted what I though was a wrong comparison with what sigma offers. My 50-500-OS if very good at 500mm. I have had several of them over the years. First one was the original, then got to use a DG model a friends for a few weeks. Now use the OS version with Nikon D800. Other versions were canon mount with a D30 10D 1dmk2 1dsmk2 and a 7D. All my versions were as good as canons 100-400 or better. How will the new Tamron stack up?, as soon as I can rent one I will find out for sure.


Mar 13, 2014 at 04:33 PM
timbop
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p.6 #16 · p.6 #16 · Tamron 150-600mm gets DxOmarked!


alundeb wrote:
Take a look at the lens scores explanation and see how useless it is:

http://www.dxomark.com/About/Lens-scores

"DxOMark Score corresponds to an optimal focal length/aperture combination"

So, the Sigma 50-500 at 50mm is equally sharp to the Tamron at 150 mm, which is absolutely meaningless.

Further:

"Lens Metrics Scores are averaged over the whole range of focal length"

If we look further into the data, we see that:
- The Tamron is best at 300-400 mm focal length (which is in opposition to the peak sharpnees measure)
- The Sigma is best at 50-200 mm focal length.

So the lens metric scores totally hide that the Sigma is abysmal at longer
...Show more


This is exactly why I have been ignoring dxomark scoring for years. Technically precise but completely useless measurebation.



Mar 13, 2014 at 04:56 PM
stegosaurus
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p.6 #17 · p.6 #17 · Tamron 150-600mm gets DxOmarked!


I had purchased this lens from my local camera shop and was disappointed when I discovered that it would only focus on my 5D Mark III body. It would stall and quit trying to achieve focus on the 7D if I had focused on a near object, moved to focus on a far object and moved back to a nearer object. I took it back and tried 2 more copies of the lens but all had the same issue. That night after trying to solve it by carefully looking at the 7D setup, I realized that Custom Function III Option 4 was set to stop the lens drive if focus couldn't be achieved. I reset this to "1" and then went back to my camera dealer to try the Tamron again. Problem solved!

I've seen quite a few posts with similar problems on a couple different Canon bodies. I don't know if what I did would fix those issues, but it certainly took care of me problem. I am still just now trying the lens (I just got it today) but so far I am very happy with the focus and speed of focus.

Paul



Mar 13, 2014 at 05:28 PM
johnctharp
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p.6 #18 · p.6 #18 · Tamron 150-600mm gets DxOmarked!


timbop wrote:
This is exactly why I have been ignoring dxomark scoring for years. Technically precise but completely useless measurebation.


The scores, in most cases, are pretty useless outside of broad differences; transmission is the only score I really pay attention to. Their 'field maps', however, are extremely useful and tend to be very accurate, and are representative of measurements, test chart shots, and real-world shots found on other sites like Photozone.de and TDP. I use all of the above- and any other reputable source I can find- to compare specific aspects of lenses that can be measured.



Mar 13, 2014 at 05:43 PM
krementz
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p.6 #19 · p.6 #19 · Tamron 150-600mm gets DxOmarked!


johnctharp wrote

The scores, in most cases, are pretty useless outside of broad differences; transmission is the only score I really pay attention to.


Can you tell me more about the transmission score? I understand the other scores, and I think I understand their limitations. However, t-scores are a puzzlement. Do lower numbers mean more light gets to the sensor at the same f-stop? Is a difference of 0.2 t-stop significant in the real world? Is a t-stop the same as a f-stop, eg, does a lens with a t-stop 1 unit higher mean the lens has to be opened up 1 f-stop for the same exposure?

Or am I totally off base and/or confused?



Mar 13, 2014 at 06:25 PM
johnctharp
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p.6 #20 · p.6 #20 · Tamron 150-600mm gets DxOmarked!


krementz wrote:
Can you tell me more about the transmission score? I understand the other scores, and I think I understand their limitations. However, t-scores are a puzzlement. Do lower numbers mean more light gets to the sensor at the same f-stop? Is a difference of 0.2 t-stop significant in the real world? Is a t-stop the same as a f-stop, eg, does a lens with a t-stop 1 unit higher mean the lens has to be opened up 1 f-stop for the same exposure?

Or am I totally off base and/or confused?


I read it as 'effective F-stops', where both the stated aperture and the efficiency of the glass is taken into account.



Mar 13, 2014 at 06:59 PM
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