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Tamron 150-600 AI Servo sequential shots only
  
 
dsr1
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p.7 #1 · p.7 #1 · Tamron 150-600 AI Servo sequential shots only


Imagemaster wrote:
Hey Don,

Not sure if that was what I said, but if I did, it was wrong. Raise your ISO to as high is required to get your shutter speed up to 1/2000 sec. You should not have to use a higher shutter speed than that.

It looks like after the first heron shot that you are starting to lose focus slightly. I am guessing that the AF in AI Servo probably works better at 256mm than 600mm. My 7D would simply not work at 600mm.

Tony


Tony,

By the fufth shot the focus was completely gone but can't blame it on the lens as I started shaking which I often do.



Feb 10, 2014 at 05:24 AM
Imagemaster
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p.7 #2 · p.7 #2 · Tamron 150-600 AI Servo sequential shots only


Bsmooth wrote:
I've got a 1DMKII and a 100-400, and have gotten loads of shots in and out focus with BIF.Sometimes I'll get 3 or 4 in focus and then it just seems to go out all by itself.
Other times I get all out of focus, this is using single shot and AI Focus as well.
This weekend I shot near the beach and was shooting gulls, mostly just for practice. Out of the probably 15 shots or so, I think maybe 5 to 7 were OK. I'm also pumping the shutter button sometime to keep them infocus, shutter speed was
...Show more


Stop using AI Focus. Use AI Servo. There is a good reason why most people don't use it and why it has been deleted from the newer and better cameras. AI Focus sucks and is ineffectual.



Feb 10, 2014 at 05:38 AM
plover
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p.7 #3 · p.7 #3 · Tamron 150-600 AI Servo sequential shots only


Bsmooth wrote:
I've got a 1DMKII and a 100-400, and have gotten loads of shots in and out focus with BIF.Sometimes I'll get 3 or 4 in focus and then it just seems to go out all by itself.
Other times I get all out of focus, this is using single shot and AI Focus as well.

Its a wonder you got any in focus shots using AI Focus - like has already been said it sucks.



Feb 10, 2014 at 09:21 AM
cameron12x
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p.7 #4 · p.7 #4 · Tamron 150-600 AI Servo sequential shots only


abqnmusa wrote:
The Tamron is an F6.3 lens at 600mm.
Why would anyone expect to use any focus point other than center focus point on an F6.3 lens?

You might get away with center focus point and the 4 assist points.
But expecting anything beyond center point to work seems pointless (off center, zone focus, all points, etc)


I tend to agree and I believe this could be one major reason we're seeing such widely varying results across bodies?

Great discussion point?



Feb 10, 2014 at 01:15 PM
abqnmusa
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p.7 #5 · p.7 #5 · Tamron 150-600 AI Servo sequential shots only


I am going to order the Tamron and use the center point only, or possibly center & 4 assist points. But only these 2 center point options.


Feb 10, 2014 at 04:36 PM
cameron12x
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p.7 #6 · p.7 #6 · Tamron 150-600 AI Servo sequential shots only


abqnmusa wrote:
I am going to order the Tamron and use the center point only, or possibly center & 4 assist points. But only these 2 center point options.


If you can live with that AF limitation it's a great lens and a fantastic value.

I'm keeping mine.



Feb 10, 2014 at 04:41 PM
Jeff Donald
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p.7 #7 · p.7 #7 · Tamron 150-600 AI Servo sequential shots only


Here is a sequence of 11 photos captured over 7 seconds with a 1Ds Mkll. It shoots at 4 FPS maximum. Because it is an f/6.3 lens I'm using center point AF only. I use back button focus and did not pump the focus/button during the sequence. The Pelican is flying towards the camera to start, turns parallel to the camera then flies away from the camera before splashing down. The AF lost focus on shot 5, but reacquired focus on the next shot.

The weather was not ideal, but there was some sun. There was also a light fog over the water. Exposure mode was Av, f/8, ISO 800 and the shutter speed varied between 1/1000 to 1/640. Note that the only out of focus shot is the one shot at 1/640, so I suspect part of the blurriness is the shutter speed and not lost focus.

Granted a Brown Pelican is not the fastest of birds, but it does demonstrate that AF does work and on a 10 year old camera to boot. I'm not a spray and pray kind of shooter. I look for position of head, wings etc before pressing the shutter release. I also have to live with an 11 frame buffer. I normally would have stopped shooting once the pelican turn away from the camera, but continued shooting to show what the AF could do with the Tamron.

























Feb 11, 2014 at 04:44 AM
dwweiche
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p.7 #8 · p.7 #8 · Tamron 150-600 AI Servo sequential shots only


Jeff, I know this is off topic, but were these shot with auto white balance? Shot 3 is quite a bit different than the rest, and would appear to be the most accurate. Just my own curiosity.


Feb 11, 2014 at 04:53 AM
Jeff Donald
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p.7 #9 · p.7 #9 · Tamron 150-600 AI Servo sequential shots only


Now that you mention it, probably not. I shot a bunch of fashion models in the studio on Sunday and had WB set to Flash. I don't remember resetting the WB back to Auto this morning. I'll double check in the morning, when i get in the office, and post back.


Feb 11, 2014 at 05:08 AM
Imagemaster
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p.7 #10 · p.7 #10 · Tamron 150-600 AI Servo sequential shots only


Two semi-comparison shots.




  Canon EOS-1D Mark IV    TAMRON SP 150-600mm F/5-6.3 Di VC USD A011 lens    600mm    f/6.3    1/800s    3200 ISO    +0.7 EV  






  Canon EOS-1D Mark IV    EF400mm f/4 DO IS USM +1.4x lens    560mm    f/5.6    1/1000s    800 ISO    0.0 EV  




Feb 11, 2014 at 05:50 AM
 

Search in Used Dept. 



dsr1
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p.7 #11 · p.7 #11 · Tamron 150-600 AI Servo sequential shots only


Imagemaster wrote:
Don, try putting your camera in Tv mode with shutter speed set at 1/2000 and set your camera to auto ISO and let the camera chose the right ISO.

The ISO has no effect on how much light the lens lets in, only how the sensor reacts to the amount of light it receives. Like in the old film days, ASA 25 would produce the best image detail, but you needed good light. ASA 800 would give you grainier images, but you needed less light.


Tony,

I tried your suggestion and got the best set so far. I thought I was all the way out to 600mm but after checkinh I see I was only 450mm. Darn!




dsr1 2014

  Canon EOS 7D    TAMRON SP 150-600mm F/5-6.3 Di VC USD A011 lens    450mm    f/6.3    1/2000s    160 ISO    +0.3 EV  





dsr1 2014

  Canon EOS 7D    TAMRON SP 150-600mm F/5-6.3 Di VC USD A011 lens    450mm    f/7.1    1/2000s    200 ISO    +0.3 EV  





dsr1 2014

  Canon EOS 7D    TAMRON SP 150-600mm F/5-6.3 Di VC USD A011 lens    450mm    f/7.1    1/2000s    200 ISO    +0.3 EV  





dsr1 2014

  Canon EOS 7D    TAMRON SP 150-600mm F/5-6.3 Di VC USD A011 lens    450mm    f/6.3    1/2000s    160 ISO    +0.3 EV  





dsr1 2014

  Canon EOS 7D    TAMRON SP 150-600mm F/5-6.3 Di VC USD A011 lens    450mm    f/7.1    1/2000s    200 ISO    +0.3 EV  




Feb 13, 2014 at 03:15 AM
dsr1
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p.7 #12 · p.7 #12 · Tamron 150-600 AI Servo sequential shots only


Continuation of thread. I kknow their not the best IQ but it's the best set I've had so far.



dsr1 2014

  TAMRON SP 150-600mm F/5-6.3 Di VC USD A011 lens    450mm    f/7.1    1/2000s    200 ISO    +0.3 EV  






  Canon EOS 7D    TAMRON SP 150-600mm F/5-6.3 Di VC USD A011 lens    450mm    f/7.1    1/2000s    200 ISO    +0.3 EV  






  Canon EOS 7D    TAMRON SP 150-600mm F/5-6.3 Di VC USD A011 lens    450mm    f/7.1    1/2000s    200 ISO    +0.3 EV  






  Canon EOS 7D    TAMRON SP 150-600mm F/5-6.3 Di VC USD A011 lens    450mm    f/7.1    1/2000s    200 ISO    +0.3 EV  




Feb 13, 2014 at 03:17 AM
lowa2
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p.7 #13 · p.7 #13 · Tamron 150-600 AI Servo sequential shots only


Not sure if this was posted yet, but this guy got some decent looking big shots with a 6D

http://jjbird.smugmug.com/Photography/Tamron-150600-Lens/i-SCF5vdP



Feb 13, 2014 at 03:31 AM
Imagemaster
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p.7 #14 · p.7 #14 · Tamron 150-600 AI Servo sequential shots only


The 6D is not one of the bodies experiencing the problem, and nearly all those shots are non-sequential.


Feb 13, 2014 at 04:32 AM
Imagemaster
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p.7 #15 · p.7 #15 · Tamron 150-600 AI Servo sequential shots only


For those that think a 1D4 has a problem with AF in AI Servo at f8, this sequence was taken with the 400 f5.6 plus 1.4x TC attached.

If the Tamron had come anywhere close to doing this at f6.3, I would not have returned it for a refund.




  Canon EOS-1D Mark IV    EF400mm f/5.6L USM +1.4x lens    560mm    f/8.0    1/1600s    400 ISO    0.0 EV  






  Canon EOS-1D Mark IV    EF400mm f/5.6L USM +1.4x lens    560mm    f/8.0    1/1250s    400 ISO    0.0 EV  






  Canon EOS-1D Mark IV    EF400mm f/5.6L USM +1.4x lens    560mm    f/8.0    1/1600s    400 ISO    0.0 EV  




Feb 13, 2014 at 04:44 AM
Jim Victory
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p.7 #16 · p.7 #16 · Tamron 150-600 AI Servo sequential shots only


Tony,

Regardless of the apparent problems with the Aiservo with the Tam 150-600 do you believe it is capable of resolving comparable resolution to say a 100-400 on a higher pixel density camera?

Most of the in focus shots I have seen just don't show much detail in comparison to even a 100-400. The higher ISO shots seem to suffer greater in detail loss than the 100-400 too.

Jim



Feb 13, 2014 at 06:27 AM
John_T
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p.7 #17 · p.7 #17 · Tamron 150-600 AI Servo sequential shots only


^This^

I've been watching this saga unfold on a pair of wide gamut 10-bit color reference monitors, and it is somehow clear that try as one might, waving a wishing wand over a very nice kitchen knife is not going to transform it into a....








Feb 13, 2014 at 09:28 AM
mitesh
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p.7 #18 · p.7 #18 · Tamron 150-600 AI Servo sequential shots only


I think the IQ has been decent to very good on some of the better-executed static shots. Two things to keep in mind are that several posters have acknowledged that this is the first time they are working with such a long focal length, and many of the posted images are 100% (or otherwise large) crops. If the final image you're showing is only 1/10 of the original frame, you're not going to have amazing IQ. Combine this with developing (or non-existent) long lens technique, and you see why we still need more samples from frequent long lens users to accurately gauge IQ in different shooting situations. JMO, of course .


Feb 13, 2014 at 11:57 AM
dmahar
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p.7 #19 · p.7 #19 · Tamron 150-600 AI Servo sequential shots only


I think the static subject resolution issue was answered definitively (and favorably) by roger at Lensrentals


Feb 13, 2014 at 12:45 PM
cameron12x
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p.7 #20 · p.7 #20 · Tamron 150-600 AI Servo sequential shots only


dmahar wrote:
I think the static subject resolution issue was answered definitively (and favorably) by roger at Lensrentals


+1.

This lens is a little soft at f/6.3, sharpens up quite a bit by f/7.1, and is VERY sharp inclusive of f/8 through f/11.

It represents a GREAT value for folks needing 4X range and a 600mm long end for static imagery.

It has yet to be proven out completely how it will fare against all moving targets. BIF is simply a subset subject area of "moving targets."



Feb 13, 2014 at 02:28 PM
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