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Next PZ lens test report: Tamron SP 70-200mm f/2.8 Di VC USD (FX)


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#1 mst

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Posted 14 April 2017 - 11:31 AM

As announced earlier, the review of the A009 model of the Tamron lens. The G2 is on its way to the lab, too.

http://www.photozone...amron70200f28fx

-- Markus
Editor (Nikon, Leica, Samsung reviews)
photozone.de

#2 mst

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Posted 14 April 2017 - 11:32 AM

Oh, forgot: I DID proof read, but only once, so I likely left something for JoJu and Rover ;)

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#3 JoJu

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Posted 14 April 2017 - 11:42 AM

Sorry, darling, I don't waste time on proof reading for outdated lenses  :P outdated DSLR-lenses, that is. And a focal length I don't care much about. But thanks for the work anyway

 

:lol:


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#4 Brightcolours

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Posted 14 April 2017 - 12:04 PM

"The current and slightly updated G2 version (model A025) will also be reviewed, soon." 

Not sure if the revamped lens construction can be called just slight (even though the two do have a resemblance)?

 

"There is no dediated dedicated mode for panning, you'll have to rely on the lens to reliably detect panning movement."

 

"The actual amounts are fairly low, though, less than most competitors" Comma after though is not needed.

 

"Vignetting and CAs are well controlled, bokeh quite smooth for a zoom lens and distortion, while still present and visible, below average for this lens class."

I would prefer an "is" after bokeh, as now it harks back on the "are" from vignetting and CAs.

 

"Build quality is very good and nothing really to complain about, even though in direct comparison to Nikon's and Canon's lenses in this market segments it feels a little less sturdy."

Rather: "Build quality is very good and even though in direct comparison to Nikon's and Canon's lenses in this market segments it feels a little less sturdy, nothing really to complain about."



#5 dave's clichés

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Posted 14 April 2017 - 12:37 PM

bokeh quite smooth for a zoom lens and distortion, while still present and visible, below average for this lens class.

 

Really below average means worse!

 

"bokeh is quite smooth for a zoom lens and distortion, while still present and visible, is "better than average" for this class of lens."

 

 

 

 

 "Build quality is very good and even though in direct comparison to Nikon's and Canon's lenses in this market segments it feels a little less sturdy, nothing really to complain about."

 

  Err...BC?

 

  The build quality is very good, however, in comparison to Nikon's and Canon's lenses in this market segment, it feels a little less sturdy,.....

 

All that aside, I think we want to see the test of the G2....well both of them the 70-200mm and the 150-600mm.

 

   Don't go back under the table Markus!..  :P



#6 JoJu

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Posted 14 April 2017 - 01:14 PM

Guys, you should write your own lens tests!  :huh:

 

:D

 

Just to see how difficult it is with such super-attentive readers. Compared to what I read in the net elsewhere, it's high class literature - and seeing me doing more mistakes in 4 lines than Markus in 3 pages I just need to realize I'm no native speaker and everything is fine again.


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#7 GoldRingNikkor

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Posted 14 April 2017 - 03:17 PM

Always wonder about statements like "until diffraction kicks in at f/11" - clearly, the center is diffraction-limited by f/5.6. This applies to many reviews...


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#8 Rover

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Posted 14 April 2017 - 03:43 PM

I was out in the field so I decided to leave that for later - and Brightcolours, you beat me to that one. :)



#9 Brightcolours

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Posted 14 April 2017 - 03:49 PM

Always wonder about statements like "until diffraction kicks in at f/11" - clearly, the center is diffraction-limited by f/5.6. This applies to many reviews...

Indeed, it should be more like "until diffraction really starts to limit sharpness". And the sharpening in the PZ MTF workflow does mask the effect  (the amount) a bit.

Lenstip shows diffraction softening a bit more clearly because of that:

3880_roz_centr.jpg



#10 GoldRingNikkor

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Posted 16 April 2017 - 04:47 PM

Indeed, it should be more like "until diffraction really starts to limit sharpness". And the sharpening in the PZ MTF workflow does mask the effect  (the amount) a bit.

Lenstip shows diffraction softening a bit more clearly because of that:

3880_roz_centr.jpg

 

"Diffraction kicks in at f/5.6, causing sharpness to drop to "very good" levels by f/11".

 

Whatever. I brought this up before. What the reviewers mean to say is that by f/X, diffraction has reduced sharpness by one "school mark", usually excellent to very good. I know it's a really minor point, but I wonder why, if this is what is meant, something else is actually stated (specifically, that diffraction effects become visible at f/X - when clearly diffraction effects are visible in the test data several f-stops before).

 

This may seem minor, but in fact, a lens for which diffraction "kicks in" only at f/11 is usually not very good. Having the center diffraction-limited at f/5.6 is a good sign (f/4 even better). So there's actually something to be learned from the data that is currently not paid much attention to. Anyway, I'll stop now. :)



#11 mst

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Posted 16 April 2017 - 04:52 PM

I changed the text to "... until diffraction really kicks in at f/11..." yesterday already

Is that ok for everyone? :)

In any case, thanks to all of you for the hints and suggestions, I really appreciate them.

-- Markus
Editor (Nikon, Leica, Samsung reviews)
photozone.de

#12 dave's clichés

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Posted 16 April 2017 - 06:00 PM

I changed the text to "... until diffraction really kicks in at f/11..." yesterday already

Is that ok for everyone? :)

In any case, thanks to all of you for the hints and suggestions, I really appreciate them.

-- Markus

 

    It's a masterpiece Markus.....to be quite honest Shakespeare couldn't have done better!  :P


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#13 AN2

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Posted 17 April 2017 - 06:30 AM

Thanks!

Waitting for the review of Tamron 70-200 G2 and Nikon 70-200E.



#14 mst

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Posted 18 April 2017 - 05:30 PM

Some other FX reviews first, but both zooms are of course on my list. The Nikkor will probably be first.

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#15 AN2

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Posted 27 April 2017 - 02:58 PM

Some other FX reviews first, but both zooms are of course on my list. The Nikkor will probably be first.

-- Markus

 

Thanks!






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