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FORUMS Photography Talk by Genre Bird Talk 
Thread started 29 Feb 2016 (Monday) 17:40
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150-600 comparison

 
davholla
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Post edited over 2 years ago by davholla.
     
Mar 08, 2016 11:10 |  #31

TeamSpeed wrote in post #17928030 (external link)
Those are pretty soft, however I think the issue isn't so much the lens as a front focusing issue. In all the owl shots, I can see the grass in front being in focus more than the owls. Not sure if you have any other bodies that might allow focus adjustments, but if so, I would try that lens on those bodies.

The owls photo was taken on a Canon EOS 400D (which I no longer use) the others on my Canon 7D MK II. How do I change it on my 7D MK II?
Is this a good advice to follow?
http://johncrabbwildli​feimages.blogspot.com …t-with-canon-7d-mkii.html (external link)

(Sadly my garden is not 25 meters long so I will have to go to the park)
Although saying that I know someone who uses the 400D and might use my tamron with so any advice would be useful.




  
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TeamSpeed
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Post edited over 2 years ago by TeamSpeed. (2 edits in all)
     
Mar 08, 2016 13:33 as a reply to  @ davholla's post |  #32

The easiest way to do a test is to get access to some flat grassy yard/park somewhere, and put a brightly colored small object, like a yellow ball, or something in the grass. Back up enough so that you get the object just covering the center AF point. Take a few shots focused on that object.

Note where the grass is in focus around that object. If the grass all around the object is fine, then you are good. If the grass is in front, then add +values. If the grass is in focus behind, put in - values.

Repeat a few times tweaking your values until you can get the grass right next to the object in focus.

I have been MFA'ing for years, and I used this technique for band competitions, sports, etc. It works very well, and is very quick. I do this every shoot just to make sure I didn't inadvertently mess up a setting, etc during the off season.

If I am at home doing MFA, then I use my focus genie tool that I developed.


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MalVeauX
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Mar 08, 2016 13:46 |  #33

Heya,

You can use ordinary stuff outside, like TeamSpeed pointed out. It'll work for the most part, if you have enough depth of field.

If you're a total perfectionist or just like gadgets, here's an example of something you can pick up that is an aid for MFA adjustments: LINK (external link)

Not super cheap, but also not crazy expensive (some are stupid costly).

Very best,


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Gungnir
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Mar 08, 2016 13:47 |  #34

Sigma are releasing a firmware update this week for the 150-600s reporting a 20-50% increase in AF speed.

Something to bear in mind :-)


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TeamSpeed
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Mar 08, 2016 14:05 as a reply to  @ Gungnir's post |  #35

My dock is cocked and ready to fire....


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Orogeny
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Mar 08, 2016 15:50 |  #36

TeamSpeed wrote in post #17928340 (external link)
My dock is cocked and ready to fire....

Hmm. I'm not sure how to respond to that.......;-)a

I look forward to the update as well.

Tim


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ardeekay
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Mar 08, 2016 16:07 as a reply to  @ TeamSpeed's post |  #37

Teamspeed, like your yellow ball idea. I bought LensAlign ll but struggle with it. Plus settings, minus settings and all in between look the same to me. If my dog will let me use her tennis ball, I'll give it a go.:-)
Thank you.
And it looks like this thread needed some air time; generated a lot of varied comments. Don't think I've ever had a 3 page thread!;-)a


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Post edited over 2 years ago by TeamSpeed.
     
Mar 08, 2016 19:40 as a reply to  @ Orogeny's post |  #38

lol, it does look quite wrong doesn't it? I typed it without really thinking about it, and submitted, then re-read it because it looked like something that didn't belong at POTN. :D


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Peter2516
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Post edited over 2 years ago by Peter2516.
     
Mar 10, 2016 12:54 as a reply to  @ post 17919870 |  #39

Hey Rog sorry for the late reply Sigma was not out yet when I got the Tamron. And I got my lens back the other day and I am really really happy with the fix they did. Tamron rocks.


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ardeekay
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Mar 10, 2016 17:36 as a reply to  @ Peter2516's post |  #40

Was going to pm, but decided this may be good general info. Was there a charge for their service and will future purchases of this lens have the problem addressed?? Tamron may not have shared any such info with you. Whatever you can add and thank you so much!


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Mar 11, 2016 00:43 |  #41

Hey Rog the Tammy comes with a 6 year warranty so no worries there. They seem to be very customer friendly, I bought mine when it first came out and have had zero problems with it. I did send it in for a firmware update and it came back quickly and they cleaned it to boot! The Sigma seems like a nice lens also. :)


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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ardeekay
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Mar 11, 2016 07:18 |  #42

Grizz wrote in post #17931284 (external link)
Hey Rog the Tammy comes with a 6 year warranty so no worries there. They seem to be very customer friendly, I bought mine when it first came out and have had zero problems with it. I did send it in for a firmware update and it came back quickly and they cleaned it to boot! The Sigma seems like a nice lens also. :)

Craig, thanks for chiming in. Good to hear all sides. Just read another review and summed up the 2 lenses were basically even but gave the edge to Sigma at the long end. See that Adorama is now including the dock free. So...:rolleyes:


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Mar 11, 2016 09:17 as a reply to  @ ardeekay's post |  #43

Well whichever lens you end up with I'm sure you will be happy. Either will serve you well. :)


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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ardeekay
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Mar 11, 2016 11:36 as a reply to  @ Grizz's post |  #44

Thank you, kind sir.


Rog
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Mar 12, 2016 05:39 |  #45

It appears that the dock software has been updated with the new firmware.
http://www.sigma-global.com …il/150_600_5_63​_S014.html (external link)


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150-600 comparison
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