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Thread started 13 Dec 2013 (Friday) 23:44
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Tamron SP 150-600mm Di VC USD

 
mccamli
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Mar 18, 2014 09:26 |  #2401

clarnibass wrote in post #16767230 (external link)
If I understand, the "issue" of not tracking in Servo mode only happened at 600mm and not at all at 150mm? I'm wondering if the largest aperture at each FL has anything to do with it. I mean the problem of the lens not even trying to focus.
Can you check at other focal lengths, especially those where the aperture is still f/5.6 (I think up to approx 400mm)?

At 600mm when you pressed the button again and it did try to focus but failed, it really sounds like it just didn't have enough light/contrast on the targets?

Some people tested it and when moving the target gradually from closest to farthest it tracks fine even at 600mm. Moving between close to far targets in Servo at 600mm is very rare. I'm wondering what happens if, for example, you are tracking a bird and for a moment you are losing it and your focus point is on the sky, then back to the bird? Or if you are tracking a football player and lose them for a moment, or a much closer person pass in the frame, etc.?
Maybe someone can try these situations or equivalents just for a test? Not just at 600mm, but at several FLs.

It's difficult to compare both issues because most people compare with Canon lenses with a f/5.6 aperture at the longest FL. But if I'm not mistake the Sigma f/6.3 lenses don't have the same issue (the first) at their longest FL, whether they manage to focus or not?

Ok, I tried again but my neighbours must have gone to bed because the reflection on thd xar is gone. Instead, my distant object was a briggt street light a few hundred meters away. Grabbing focus at 600 was easier on the distsnt object than the near object. AI servo first worked seamlessly from near to far at 250mm. at 200mm it worked in both directions. Again, it's dark outside so the conditions are far from ideal.

I've just tried on a closer distant object...a street light about 20m away. I could get it to go from near to far up to 375mm (not an instant grab but at least a grab) but above that I had to bump focus...then it worked fine as expected.


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Peter2516
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Mar 18, 2014 09:29 |  #2402

gocolts wrote in post #16767039 (external link)
So apparently some of the talk of the 7D/150-600 combo not being good at AI servo is overblown?? :) Based on my experiences with this combo, it'll track just fine....until you want to change target, at which point you need to let your finger off the trigger and start over on the next target. Does this match your experience?

Thanks. :), Same with me also, The only thing different that I did was I moved back to shutter button to focus and while following the eagle in flight half press it and start shooting whenever I am off target I half press again and start shooting again I did this numerous time in this series and also instead of using the center focusing point, I changed that AF zone and used the center zone area, I missed a lot when I am using back button for focusing with this lens.


Peter
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EOS 5D Mark IV, 1Dx1, 7D Mark I & II/Canon T2i Gripped/EF 500mm f/4L IS USM MK1 / EF70-200mm f2.8L IS II USM / EF100 -400 f4.5-5.6L USM/ EFS 10-22mm/EFS 17-55mm/EFS 18-200mm/Canon 1.4x II/Canon 2x III/ 430EXII / 580EXII.

  
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Peter2516
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Mar 18, 2014 09:32 |  #2403

-AP- wrote in post #16766547 (external link)
Wow!!

RedCatPhoto wrote in post #16766686 (external link)
Absolutely stunning Peter!

challer wrote in post #16767075 (external link)
Awesome shots, Peter!

mccamli wrote in post #16767184 (external link)
Fantastic shots again Peter!

I've just tried my 7D with focus search on in very poor conditions (it'd dark outside and I was shooting from inside the house with the lights on...my near item was the pale door jam and my far item was a dark parked car about 50m away)

I tried AI servo. At 150mm the lens had no trouble coming from far to near and suprisingly had no problem going from the bright close object to the car...it easily grabbed the dim rego plate. At 600mm it would do neither without bumping the focus. With the focus bumped it snapped from far to near. Near to far was more of a drama. It couldn't find the number plate (that was no great suprise to me) but it did manage to snap onto the reflection of a light on the top corner of the back window. The reflection was a small and quite bright in comparison to the surrounds. When aimed at this bright dot the lens would grab ficus without hunting at all. I was quite impressed.

[QUOTE=sanil;16767226]

Peter2516 wrote in post #16766531 (external link)
Few shots of Eagle in flight taken last Saturday with 7D.

Thanks for looking.

quote]

Peter... I hope Moderator will come out with something -

wherein my reply is posted automatically with "wow" - When ever you post an image in this thread.

Happy clicking..

sanil

Thank you very much everyone for the comments, I am really really trying hard to have this lens work with bif so I've been trying every AF system of the 7D. Upgrading for the camera body is not an option for me at the moment :).

:) Sanil thank you he he.


Peter
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EOS 5D Mark IV, 1Dx1, 7D Mark I & II/Canon T2i Gripped/EF 500mm f/4L IS USM MK1 / EF70-200mm f2.8L IS II USM / EF100 -400 f4.5-5.6L USM/ EFS 10-22mm/EFS 17-55mm/EFS 18-200mm/Canon 1.4x II/Canon 2x III/ 430EXII / 580EXII.

  
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Kickflipkid687
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Mar 18, 2014 11:07 |  #2404

Awesome stuff Peter. Was this in Juanita Bay again or somewhere else?

I'm still also trying to get better at BIF. I might try moving back to the shutter button AF instead of back button and see how that goes. Although, if you take shots with the shutter button, doesn't it mess with AF/have to re-engage vs. holding down the back-button the whole time?


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Peter2516
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Mar 18, 2014 12:42 |  #2405

Kickflipkid687 wrote in post #16767541 (external link)
Awesome stuff Peter. Was this in Juanita Bay again or somewhere else?

I'm still also trying to get better at BIF. I might try moving back to the shutter button AF instead of back button and see how that goes. Although, if you take shots with the shutter button, doesn't it mess with AF/have to re-engage vs. holding down the back-button the whole time?

Thanks Matt. Yes it was in Juanita bay last Saturday.

With the shutter button when you are in ai servo I think it would work better with 7D and this lens because with tamron having issues with ai servo if you use the shutter for focusing just tap it to wake up the lens :) and shoots right away at once, I noticed that it work faster with rhis set up this is just me, before I have this lens I am using the back button 100%. And also the AF zone is more effective with AI Servo then the single point AF, when tracking bif. this is just my opinion.


I've been using BB and single focusing point with my 7d and ef300, I will try the BB and AF zone (center zone area) next time with Tamzooka. I think it will work also as long as you make sure you keep tapping when you think the bif is out of focus in the viewfinder. Um I will try this later.


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EOS 5D Mark IV, 1Dx1, 7D Mark I & II/Canon T2i Gripped/EF 500mm f/4L IS USM MK1 / EF70-200mm f2.8L IS II USM / EF100 -400 f4.5-5.6L USM/ EFS 10-22mm/EFS 17-55mm/EFS 18-200mm/Canon 1.4x II/Canon 2x III/ 430EXII / 580EXII.

  
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Peter2516
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Mar 19, 2014 00:24 |  #2406

IMAGE: http://farm8.staticflickr.com/7436/13259218093_c8312578f0_b.jpg
IMAGE LINK: http://www.flickr.com …eterbangayan/13​259218093/  (external link)
Chestnut Chickadee (external link) by Peter Bangayan (external link), on Flickr

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EOS 5D Mark IV, 1Dx1, 7D Mark I & II/Canon T2i Gripped/EF 500mm f/4L IS USM MK1 / EF70-200mm f2.8L IS II USM / EF100 -400 f4.5-5.6L USM/ EFS 10-22mm/EFS 17-55mm/EFS 18-200mm/Canon 1.4x II/Canon 2x III/ 430EXII / 580EXII.

  
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alann
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Mar 19, 2014 05:46 |  #2407

Just ordered mine from B&H. Hope it comes off back order soon


My FLickrPage (external link)

  
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fogboundturtle
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Mar 19, 2014 09:21 |  #2408

a compilation of all the picture I took with the Tamron last week
http://www.flickr.com …e/sets/72157642​493990615/ (external link)


Canon 5D Mark III, Canon 70D, Canon EF 24-105L, Tamron 150-600mm, Tamron 70-200 F2.8 DI VC USD, Sony A7r, Sony FE 55mm F1.8

  
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RedCatPhoto
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Mar 19, 2014 10:51 |  #2409

Two from today. Still can't manage to get BIFs :p

IMAGE: http://farm8.staticflickr.com/7220/13268506744_6fca7876d0_b.jpg
IMAGE LINK: http://www.flickr.com …s/jmbruchez2/13​268506744/  (external link)
Fat sparrow (external link) by jmbruchez - cats & stuff (external link), on Flickr

IMAGE: http://farm4.staticflickr.com/3747/13268503534_25f8c9e665_b.jpg
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Mar 19, 2014 11:30 |  #2410

alann wrote in post #16769628 (external link)
Just ordered mine from B&H. Hope it comes off back order soon

Congrats Alann.

Very nice Redcat. Awesome details on both.

I wish I can buy the 5D3 now, I guess I can using a cc but I am saving money for it and maybe by the time I have the money the rumor 7dII will be out. :)


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EOS 5D Mark IV, 1Dx1, 7D Mark I & II/Canon T2i Gripped/EF 500mm f/4L IS USM MK1 / EF70-200mm f2.8L IS II USM / EF100 -400 f4.5-5.6L USM/ EFS 10-22mm/EFS 17-55mm/EFS 18-200mm/Canon 1.4x II/Canon 2x III/ 430EXII / 580EXII.

  
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RedCatPhoto
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Mar 19, 2014 12:07 |  #2411

Thanks Peter ;)

I might be in for the rumored 7DII :D

Another one from today.

IMAGE: http://farm4.staticflickr.com/3817/13269644885_a81365a950_b.jpg
IMAGE LINK: http://www.flickr.com …s/jmbruchez2/13​269644885/  (external link)
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fogboundturtle
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Mar 19, 2014 12:09 |  #2412

and they claim is not on par in IQ with the canon lens. BS


Canon 5D Mark III, Canon 70D, Canon EF 24-105L, Tamron 150-600mm, Tamron 70-200 F2.8 DI VC USD, Sony A7r, Sony FE 55mm F1.8

  
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Peter2516
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Mar 19, 2014 12:12 |  #2413

Awesome capture Redcat. I love pp like this it keeps the natural colors/looks of the bird. Unlike others they tend to overcooked or trying to do too much.


Peter
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EOS 5D Mark IV, 1Dx1, 7D Mark I & II/Canon T2i Gripped/EF 500mm f/4L IS USM MK1 / EF70-200mm f2.8L IS II USM / EF100 -400 f4.5-5.6L USM/ EFS 10-22mm/EFS 17-55mm/EFS 18-200mm/Canon 1.4x II/Canon 2x III/ 430EXII / 580EXII.

  
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Peter2516
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Mar 19, 2014 12:15 |  #2414

fogboundturtle wrote in post #16770437 (external link)
and they claim is not on par in IQ with the canon lens. BS

:) I know what you mean, It's hard to argue with those, specially if what we have is a third party lens, That is why it is best to ignore but still stay on course :).


Peter
http://www.flickriver.​com/photos/peterbangay​an (external link)
EOS 5D Mark IV, 1Dx1, 7D Mark I & II/Canon T2i Gripped/EF 500mm f/4L IS USM MK1 / EF70-200mm f2.8L IS II USM / EF100 -400 f4.5-5.6L USM/ EFS 10-22mm/EFS 17-55mm/EFS 18-200mm/Canon 1.4x II/Canon 2x III/ 430EXII / 580EXII.

  
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Mar 19, 2014 12:21 |  #2415

Great work Peter, RedCat. :)


Craig * Canon 7D Mark II * 60D * 10D * Tamron SP 150-600 f/5-6.3 Di VC USD * EF 400 5.6L USM * EF 17-40 4.0L USM * EF 70-210 4.0 * EF 28 2.8 * EF 50 1.8 MK1*Flickr (external link)

  
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