Home Photography How to Control De-Focus (with a Nikon 105mm f/2 DC)

How to Control De-Focus (with a Nikon 105mm f/2 DC)

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A lens that causes a lot of intrigue is the Nikon 105mm f/2 DC(http://bit.ly/AF105mmDC). What does De-focus Control actually mean? Kai takes a look at Nikon’s …


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  1. I own this lens; and it's amazing. How old is this video if Alamby just came onboard?? It's an awesome awesome lens, it is sharp but makes everything else look like butter. And yes, I come here just to hear Kai say "Bokeh!"

  2. Hi mate, I like your reviews in general but you are totally unfair in this one.You are totally using the lens wrong.Just because you do not understand how it works it doesnt mean its worthless.It is actually one of the best,if not the best, portrait lenses ever made.Reason I got into Nikon actually…First your distance from the subjects is wrong.You can get the best results at least at waist level crop, I use it mostly on face shots…..

  3. So if the "f" half of the rotation looks less favorable than the "r" half, is it safe to assume that the "f" control is better for making things in front of your subject look better when out of focus?

  4. The Problem here is, Kay has NO IDEA how to use this lense. You choose an aperture and this exactly what you have to set on the defocus control ring(when you will use this feature) not more or less. Then you get the best result. This and the 135mm version is one of the sharpest lense which nikon ever build. And the images quality is second to non.

  5. I like these videos, but he kind of missed the point. The F side is only for when there is virtually no background (Like someone holding a flower in front of their face and you focusing on the face) so you should be using R 90% of the time. Also, he didn't show what it does at different apertures; it changes behavior as you go to smaller apertures. He also missed the fact that it's a sharp f/2. BAM. Faster than the professional "super fast" 70-200mm zoom. 

    I don't blame him, though, it's just a really complex lens that is very subtle and subjective. It's the most sensitive lens I have in terms of focus accuracy, and if you miss (as is easy because the AF is slow as he mentioned) then you're going to have a bad day. 

    for anyone wanting to use this, Set aperture f/4 and DC F4. That's the sweetspot for outdoor portraits. 

  6. hey man. im a brit living in HK too. lol….alot of weirdos eh? thing is with this lens….you need to get closer. im talking actors headshots kind of closer. i used to take headshots for actors and i tried this lens. its awesome…but you cant see its effect at such a distance. get super close to the subject.

  7. I love watching the digital rev videos. I think on this occasion though, you didn't explain how to use DC properly… The beauty of this lens is that you can set the aperture for optimum sharpness AND have an incredibly blurred background e.g. if you are a street portrait shooter (in good light), you would set the aperture to F/5.6 and set the DC to 5.6 (R). The result is that you will have incredibly sharp images (for the in focus parts) and still maintain that creamy bokeh (for the out of focus parts). in order to get good bokeh in other lenses, you need to have the camera wide open, which generally means the lens is a little soft… With DC, you get the best of both worlds!
    Hope that helps…

  8. I normally find your reviews very helpful, but in this one, the lens offers benefits that are not demonstrated..  
    Suggestion for demonstrating use of Nikon DC portrait lenses:
    a. Shoot portraits half body or less, with background some distance away.
    b. Be wary of the rules for using the DC ring (that is, use the DC ring only up to the actual aperture that you are shooting at)..
    c. Also experiment with fstops that don't traditionally produce blurred background to see what effect the DC has. For example, can you use it at f/8 to create more of a blurred background than one would normally see at f/8.

    As things stand the video is misleading because the lens was not used in a manner that demonstrates it benefits.

    There are other commentators making a similar point on this video, offering a bit less detail.

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