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Archive 2017 · Tamron70-200 G2

  
 
vitalishe
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p.1 #1 · p.1 #1 · Tamron70-200 G2


Did anyone hear anything about the shipping date (in US) for Tamron 70-200 G2?
On Adorama there was mentioning of 2/26/17:
"Manufacturer will start shipping this item on 02/26/2017. Orders will be filled on a first come first serve basis."

Did anyone already get a tracking number?


Edited on Mar 06, 2017 at 11:33 PM · View previous versions



Feb 27, 2017 at 11:49 AM
vitalishe
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p.1 #2 · p.1 #2 · Tamron70-200 G2


Interesting ....
I contacted B&H yesterday around 5pm to see if they know anything about when the lens will be shipping and there was no information.
Just now (the morning after) I get an email from them that the lens has shipped!

To give you an idea of timeline, I pre-ordered the lens on February 24. Today is February 28 it has shipped from NY.



Feb 28, 2017 at 11:31 AM
conrad2nr
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p.1 #3 · p.1 #3 · Tamron70-200 G2


Mine has shipped today as well.

I ordered within hours the day preorders became available.



Feb 28, 2017 at 04:27 PM
Lauchlan Toal
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p.1 #4 · p.1 #4 · Tamron70-200 G2


Congrats! Hope you like the lens, and be sure to share any shots and feelings about how the lens performs here, will be interesting to see how it holds up.


Feb 28, 2017 at 04:47 PM
McDermott
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p.1 #5 · p.1 #5 · Tamron70-200 G2


I follow Allens Camera on Facebook, and have purchased from them many times. They posted today they have this lens in stock, ready to ship.

http://allenscamera.com



Feb 28, 2017 at 05:51 PM
vitalishe
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p.1 #6 · p.1 #6 · Tamron70-200 G2


I got the lens today.

I am very happy about the closest focus distance. It is very useful indoors.

I am quite unhappy about the front zoom ring. I hope I can get used to it, but so far it feels very uncomfortable.



Mar 03, 2017 at 04:07 AM
bbourizk
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p.1 #7 · p.1 #7 · Tamron70-200 G2




vitalishe wrote:
I got the lens today.

I am very happy about the closest focus distance. It is very useful indoors.

I am quite unhappy about the front zoom ring. I hope I can get used to it, but so far it feels very uncomfortable.


Post some images then.



Mar 03, 2017 at 06:17 AM
milkod2001
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p.1 #8 · p.1 #8 · Tamron70-200 G2


The ones who got the lens already: what are your initial impressions : sharpness, AF performance, etc. ?


Mar 03, 2017 at 06:46 AM
Lauchlan Toal
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p.1 #9 · p.1 #9 · Tamron70-200 G2


Haven't sprung for this lens yet (hoping to hear from people who have!) but I decided to do some research into focal breathing since it's a hot topic with 70-200 lenses lately.

Using the minimum focus distance and the max magnification provided by B&H on their spec sheets, I was able to calculate the focal length at minimum focusing distance. Now, the max magnifications and the minimum focusing distances provided are likely estimates, not the precise values that you might see in a patent application, so assume some margin of error with all the following, maybe +/- 15mm.

Tamron 70-200 G2: 156mm
Tamron 70-200 VC: 163mm
Nikon 70-200 VR II: 168mm
Sigma 70-200 OS: 175mm
Nikon 70-200 FL E: 231mm
Canon 70-200 IS II: 240mm
Canon 70-200 IS I: 250mm

EDIT: If you account for the length of the lens, you get different values as follow:

EDIT 2: Now also adjusting for flange distance in parantheses:

Tamron 70-200 G2: 124mm (117mm)
Tamron 70-200 VC: 139mm (133mm)
Nikon 70-200 VR II: 143mm (138mm)
Sigma 70-200 OS: 150mm (144mm)
Nikon 70-200 FL E: 188mm (179mm)
Canon 70-200 IS II: 200mm (192mm)
Canon 70-200 IS I: 218mm (211mm)

If the above values are correct, the following conclusion is not.

So interestingly, of these popular 70-200 lenses, none of them are 200mm at minimum focusing distance (nor even all that close, even if you factor in the imprecision). The lenses lauded for being true 200mm lenses are really well above 200mm, and the lenses that some people have said are really 135mm or 115mm lenses are actually closer to 200mm than we think.

But what about 200mm primes? We consider 200mm primes to be 200mm at all focal lengths, but as it turns out this might not be so true. Based on the specs of the latest 200mm f2 lenses, the Canon comes in at 238mm and the Nikon comes in at 250mm. (EDIT: 211mm (206mm) and 225mm (219mm) respectively, when considering lens length.)

Again, these focal lengths are not 100% accurate since there's so much rounding in the specs. But it's pretty clear that there are major differences in focal length at minimum focusing distance, and that if you compare one of the Tamrons, the Sigma, or the Nikon VR II against a prime, Canon 70-200, or Nikon 70-200 FL E, you'll think that the Tamron/Sigma/Nikon VR II is a lot shorter than it actually is.

Edited on Mar 06, 2017 at 10:10 AM · View previous versions



Mar 03, 2017 at 05:40 PM
vitalishe
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p.1 #10 · p.1 #10 · Tamron70-200 G2


Lauchlan Toal wrote:
Haven't sprung for this lens yet (hoping to hear from people who have!) but I decided to do some research into focal breathing since it's a hot topic with 70-200 lenses lately.

Using the minimum focus distance and the max magnification provided by B&H on their spec sheets, I was able to calculate the focal length at minimum focusing distance. Now, the max magnifications and the minimum focusing distances provided are likely estimates, not the precise values that you might see in a patent application, so assume some margin of error with all the following, maybe +/- 15mm.

Tamron 70-200 G2:
...Show more

I tried doing similar calculations and quickly realized that it is wrong to assume that the cone of the angle of view starts from the focal plane. Instead, you have to take into account the length of the lens as well. This will significantly reduce all your focal length numbers.

Since I now have the lens I did a hands on test to evaluate the true focal length. I will describe it a bit later but, my conclusion is that the lens is around 150mm at the closest focus distance.



Mar 06, 2017 at 12:20 AM
vitalishe
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p.1 #11 · p.1 #11 · Tamron70-200 G2


So here is the test that I did. The idea: take two pictures one focused to .95m (closest) at "200mm", the other focused to infinity at whatever focal length that would make the frame the same.

Technical details:
- the body (D3s) with the lens on tripod (attached to the lens foot) and leveled using bubble level.
- Zoomed in all the way to 200m and focus ring turned all the way to the closes focus distance, 2sec timed delay at f/8.
- focus to infinity (judging by the distance scale, which can turn past infinity) adjust the zoom to place the bright light source (candle light) in the same position as on the first photo.
- Get the focal length reading from the last image file (150mm).

I did not figure out how to add pictures directly here, so I placed them on Flickr and linked here:

Image 1: Illustration of the light source:
https://www.flickr.com/photos/93201726@N03/32896184520


Image 2: Closest focus at "200mm":
https://www.flickr.com/photos/93201726@N03/32896183890


Image 3: Infinity focus at 150mm:
https://www.flickr.com/photos/93201726@N03/32896182570


Note that the blur on images 2 and 3 is different (larger on 2), so one should compare the position of the light source center. Which seamed the same to me.

*** CORRECTION: When I started editing the message to correct a typo, I got an option to add images here.





Image 1: Illustration of the light source







Image 2: Closest focus at "200mm"







Image 3: Infinity focus at 150mm




Mar 06, 2017 at 12:43 AM
Lauchlan Toal
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p.1 #12 · p.1 #12 · Tamron70-200 G2


vitalishe wrote:
I tried doing similar calculations and quickly realized that it is wrong to assume that the cone of the angle of view starts from the focal plane. Instead, you have to take into account the length of the lens as well. This will significantly reduce all your focal length numbers.

Since I now have the lens I did a hands on test to evaluate the true focal length. I will describe it a bit later but, my conclusion is that the lens is around 150mm at the closest focus distance.


Interesting test, 150mm sounds about right, thanks for sharing the test images. As for the field of view, that's a good point! If you take into account the length of the Tamron G2, that puts it at a 124.5mm lens. It would make the previous Tamron a 139mm, the Canon IS II a 200.4mm, the Nikon VR II a 143.3mm, and the Nikon FL E a 188.5mm. It would also make the Nikon 200mm f2 a 224.6mm and the Canon 200mm f2 a 211.5mm. I'll update the original comment to reflect those different values.




Mar 06, 2017 at 08:40 AM
SoundHound
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p.1 #13 · p.1 #13 · Tamron70-200 G2


Fascinating! A possible explanation for some of the variations of these lenses. Also, I just changed from the Nikon 70-290 VR II to the FL. BIG step up in IQ as well as longer FL at MFD.


Mar 07, 2017 at 01:35 AM
wizzard0003
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p.1 #14 · p.1 #14 · Tamron70-200 G2


I found this interesting as it compares the new Tamron 70-200 G2 to the
Nikon 70-200 VR II and 200 f2.

Tamron 70-200 G2 - Bokeh & Close Focus test (Matt Granger)



William



Mar 07, 2017 at 04:27 AM





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