sharp lens or not


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NovQuest

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Aug 9, 2009
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#1
Hi I bought Nikon 85mm 1.4 , how will you know if the lensi bought is not good copy ?
thanks,
 

night86mare

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Aug 25, 2006
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#3
Hi I bought Nikon 85mm 1.4 , how will you know if the lensi bought is not good copy ?
thanks,
use tripod, make sure focus is right, then shoot at f/1.4, shoot at f/2.8, shoot at f/4, shoot at f/8

post pictures of the focus area here at 100% crop, untouched.
 

PrimePhotog

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Oct 25, 2007
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#7
Nikon lenses rarely have lemon copies compared to Canon. Especially the high-end ones like the 85mm f1.4. I am usually too lazy to check :(
 

acerpic

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May 5, 2005
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When i bot my 85 1.4. The IQ of the lens is so pale. I almost given up my upgrade plan. But the salesman let me test another copy. Without changing the setting.. I saw big difference on IQ. So bot the 2nd copy. If u buy new one, best to have test at least 2 copy.. :)
 

Shen siung

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May 21, 2008
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#9
use tripod, make sure focus is right, then shoot at f/1.4, shoot at f/2.8, shoot at f/4, shoot at f/8

post pictures of the focus area here at 100% crop, untouched.
Yes, this should be the fast way, or you can shoot on a resolution chart, but difficult to interpret...
 

NovQuest

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Aug 9, 2009
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#10
Thanks for all the replies.
I will take photo tonight and post the images here.

Any given distance from the object?
What do you mean "crop it 100%"?

Thanks,
 

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