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05-31-2012, 05:46 AM   #1
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What do you think of Nikon 135/2 DC compared to 85mm/1.4?

What do you think of Nikon 135/2 DC compared to 85mm/1.4 on FF - how does these two lenses compare for portrait work? I am comfortable using FA77 & 85mm on APS-C for my day to day shoot, does it mean 135 is more suited if I add Nikon FF?

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05-31-2012, 01:20 PM   #2
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QuoteOriginally posted by yusuf Quote
What do you think of Nikon 135/2 DC compared to 85mm/1.4 on FF - how does these two lenses compare for portrait work? I am comfortable using FA77 & 85mm on APS-C for my day to day shoot, does it mean 135 is more suited if I add Nikon FF?
I don't know those specific lenses, but I know that 85/1.5 on my K20D is AOV+DOF equivalent to 131/2.3 on 135/FF (*). Another view: 135/2 on 135/FF would be AOV+DOF equivalent to 88/1.3 on my K20D. So the Nikon 135 will have VERY slightly thinner DOF and smaller AOV than a fast 85 on APS-C -- pretty damn close. To exactly match the AOV of a 77 on 135/FF would take a 115mm lens. Closest might be a 120/2.8, which would translate as 78/1.8 -- another pretty close match!
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(*) The Pentax/APSC-to-135/FF factor is 1.54. To translate for equivalent lens views, apply the factor to both focal length and aperture.
06-03-2012, 05:59 AM   #3
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From what I understand the DC designation for Nikon means defocus which lets you do some effects. So the lens can do more in that sense.
06-05-2012, 08:09 AM   #4
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QuoteOriginally posted by Verglace Quote
From what I understand the DC designation for Nikon means defocus which lets you do some effects. So the lens can do more in that sense.
Yeah, the defocus control was a really interesting experiment. Set at zero, the 135mm f2 is a blazingly sharp lens. The DC adjustment allows you to add more aberations to the image, mostly spherical aberations if I remember correctly. Goes to show that the sharpest lenses aren't always the best choice.

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