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D810 Lens Debate - Sigma 24-105 Vs New Tamron 24-70 G2

D810 Tamron Sigma

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#1 Schattenjager

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Posted 07 September 2017 - 02:39 PM

Hello all!  I currently have the Sigma 24-105 F4 on my D810 as a walk around setup.  A buddy just landed the new Tamron 24-70 2.8 and loves it.  

 

My question may seemingly have an obvious answer, but the debate amongst a few folks I know is interesting.  Should I get the Tamron or would it be completely redundant?  The Tamron is ok at 2.8 and nicely crisp at f4 which is the Sigma's lowest.  The Sigma is pretty great all over.  Is that stop difference going to manifest itself in my photos of events, candid, impromptu portraits etc?  To me it seems that I would simply be paying to lose 35mm. 

 

What am I missing?  



#2 elcab18

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Posted 07 September 2017 - 03:19 PM

Sounds like you may have compared the two lenses already since your buddy has the Tamron, if not, take the exact same shot with each lens (all things equal), you may wish at times that you had that little extra bokeh in some shots.  

 

I enjoy walking around parties or anyplace really for those impromptu shots with my Nikon 50mm 1.8 on a D500 or D610, the subject really pops, usually also carry the 70-200 2.8 to get in close.  


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#3 TknoGeek

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Posted 07 September 2017 - 03:37 PM

One stop at "typical" casual portrait distances (say, 5 feet/1.5 meters) for these focal lengths is not likely to have a significant effect on bokeh. *You* might notice it, but most viewers wouldn't. On that point, though, while the image quality (sharpness) across the spectrum for both lenses may be acceptable, I suspect both lenses will perform better at f/8 - f/11 than wide open.

So that leaves me with these questions: How often have you missed shots because you 'only' had f/4 and not f/2.8? Will using one lower ISO on your D810 make a significant difference in noise? How often do you find yourself using the full 105mm versus something closer to 70mm (or less)? (Lightroom can help with this question very easily.)

Gear Acquisition Syndrome can be rather pernicious (to budgets) and is easily spread through any population of photographers via any form of contact (even virtual contact). While I have no issue with any photographer succumbing to GAS, it's generally good to at least recognize it as such without relying on severe rationalizations. There's nothing wrong with simply saying "I simply want it rather than need it." :)
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