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FORUMS Canon Cameras, Lenses & Accessories Canon EF and EF-S Lenses 
Thread started 11 Feb 2015 (Wednesday) 14:26
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Sigma 150-600 contemporary

 
Shake ­ N ­ Vac
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Apr 08, 2015 01:54 |  #136

05Xrunner wrote in post #17508429 (external link)
So everyone with them happy with it? I am going to order one tomorrow morning. I just wanna make sure it's a good buy. I had a 100-400 v1 before and always liked that lens alot and wanna make sure instead of just getting a 100-400 again

Can't speak for anyone else but I am more than happy with mine. I have previously rented the Sigma 50-500 and Canon 100-400 for airshows and was initially torn between the two of those. Then this came out and made the decision easy, 200mm extra over the 100-400 is a massive difference. While it doesn't have the wide end of the 50-500 it does have an extra 100mm (though probably a little more as the 500 never really got to 500 in my experience). Image quality appears to be great across the focal range and the USB dock for customisation and future firmware updates is just icing on the cake.


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05Xrunner
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Apr 08, 2015 07:46 |  #137

well I went for it and ordered the 150-600C and dock from BH this morning. Now I gotta wait till monday when they open for it to ship and hope that it saying in Stock was correct even though they are closed and it actually ships Monday. Cause I was up in air buying off ebay knowing it was instock for that listing vs hope that it was correct in stock at BH. I just went with BH


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lozw
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Post edited over 3 years ago by lozw. (3 edits in all)
     
Apr 09, 2015 05:03 |  #138

Anyone spent any time trying to MFA their lens yet?

It's hard work at the longer focal lengths as trying to ensure accurate LV focus as a reference point requires a very stable platform, and a decent target. At longer distances - 50ft or more, you also need a largish target.

The USB dock permits MFA at 4 focal lengths, x 4 distances - so 16 MFA settings. That takes a long time... (I am using DotTune)

But so far, my testing (incomplete as yet) shows mine has a definite 'bell curve' at the 9ft and 20ft distances - it requires a greater MFA adjustment at the 250 and 400mm settings than it does at 150 and 600.
I repeated the tests over two mornings, using two different targets to try and confirm the results, and it was the same both time.

However, I haven't finished the 50ft and infinity calibration yet.
But so far it also looks like the greater the distance, the more MFA is required.
e.g. at 600mm/9ft it required +2, at 20ft +4 and at 50ft +6 (though I haven't repeated these tests with a different target yet to confirm)
(though the more 'informal' testing I had done so far of real world subjects rather than test targets didn't show that I needed that much MFA at 600mm when taking shots at or over 50ft)

So it looks like the USB dock could be useful as the T and W MFA settings of my 70D wouldn't compensate for the bell curve - the slope between the two settings would be linear. Nor can it deal with distance.

Has anyone experienced similar with other Sigma lenses that can be calibrated via the dock?


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Maceo
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Apr 09, 2015 11:04 as a reply to  @ 05Xrunner's post |  #139

I bit the bullet today as well... Like you, I hope B&H has them in stock.




  
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davidmtml
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Apr 09, 2015 11:39 |  #140

Welp...I just took the plunge on this one too! Free 12 month financing with my Amazon Store Card, and paid the $6.99 for one-day shipping with Amazon Prime so I should get it tomorrow!!!!!




  
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05Xrunner
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Apr 09, 2015 11:41 |  #141

what the poop. I looked other day and no prime for it plus said ships in 1-3months. I have prime. I would have bought it there :(


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davidmtml
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Post edited over 3 years ago by davidmtml.
     
Apr 09, 2015 11:44 as a reply to  @ 05Xrunner's post |  #142

There wasn't any available yesterday, they just popped up today. Today there were 2 available sold through Murphy's Camera. There is still 1 available right now!! http://www.amazon.com …-3&keywords=sigma+150-600 (external link)




  
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05Xrunner
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Apr 09, 2015 11:49 |  #143

i already bought mine at BH. So I gotta wait till wed for delivery after they open on monday :(


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Tom ­ Reichner
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Apr 09, 2015 11:58 |  #144

gremlin75 wrote in post #17427724 (external link)
Slightly longer min. focus distance.

. . . . Max Magnifications is the same . . .

I do not understand this. If the focal length is the same, and the MFD is longer, then how can the maximum magnification be the same?


"Your" and "you're" are different words with completely different meanings - please use the correct one.
"They're", "their", and "there" are different words with completely different meanings - please use the correct one.
"Fare" and "fair" are different words with completely different meanings - please use the correct one. The proper expression is "moot point", NOT "mute point".

  
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DreDaze
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Post edited over 3 years ago by DreDaze.
     
Apr 09, 2015 12:12 |  #145

Tom Reichner wrote in post #17510747 (external link)
I do not understand this. If the focal length is the same, and the MFD is longer, then how can the maximum magnification be the same?

it's not, the Sport is listed as 1:8.1...the Contemporary is listed as 1:5


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Maceo
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Apr 09, 2015 13:29 |  #146

05Xrunner wrote in post #17510736 (external link)
i already bought mine at BH. So I gotta wait till wed for delivery after they open on monday :(

I'm in the same position that you're in... However, I'm trying not to think about it. It's only a week, right?




  
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BigAl007
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Apr 09, 2015 13:33 |  #147

Tom Reichner wrote in post #17510747 (external link)
I do not understand this. If the focal length is the same, and the MFD is longer, then how can the maximum magnification be the same?


I guess that that could happen if both lenses are not parfocal and the amount of variation in FL with focus distance was different between the two lenses.

Alan


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gabebalazs
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Post edited over 3 years ago by gabebalazs. (2 edits in all)
     
Apr 09, 2015 14:57 as a reply to  @ Tom Reichner's post |  #148

I may also be because most zoom lenses are usually shorter than their claimed FL at MFD.

Example: if one 600mm lens measures only about 450mm at MFD, it will have smaller magnification than another lens that measures 500mm at the same MFD. Based on this, 2 lenses can have the same claimed focal length (e.g. 150-600mm), different MFD, but if the longer MFD lens is closer to its claimed FL at MFD, it may have the same or even larger magnification at MFD than the other lens.

Another example is 2 lenses that I used to own in the past: Tamron 18-270mm and Canon 55-250mm IS. The Tamron's focal length was larger (270mm vs 250mm), and its MFD was much shorter than the Canon's. Still their magnification was very similar since the Tamron was only about 140mm at its MFD even fully zoomed, while the Canon was very close to its 250mm at its own MFD.


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Apr 09, 2015 15:02 as a reply to  @ gabebalazs's post |  #149

i think the easiest answer is what i posted above...he was wrong, the magnification isn't the same, 1:8.1 vs 1:5


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gabebalazs
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Apr 09, 2015 15:10 as a reply to  @ DreDaze's post |  #150

:) Oops, I didn't even see that post
I saw a "problem" and presented my solution :)
Next time I should read the other posts too.


5DIV | 5DIII | 80D | A7RII | Canon 24-70 2.8L II | 70-200 2.8L IS II | 24-105 f/4L IS | 16-35 f/4L IS | 135 f/2L | 85 1.8 | 50 1.8 STM | 18-135 IS STM | SONY FE 28-70 OSS | Tamron 17-50 2.8 | Tamron 150-600 | Ʃ 35 1.4 ART | Rokinon 14 2.8 | Sigma 1.4x | Metabones IV | 2x Canon 600EX-RT
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Sigma 150-600 contemporary
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