How is declicked lens useful vs normal lens?

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payal_choksi

Well-known member
hello friends,

i am surfing up information about samyang 14mm lens and came across 2 versions, 1 is declicked and another is simple. for video purpose, how is declicked version more useful?

can someone tell me the use of declick version in video?

regards
 
The ability to set exposure at a particular f-stop or anywhere in between gives you more control and creative options than stepped f-stops. Say you are making a dolly move and the lighting conditions change through the move. With a declicked iris you can smoothly transition through the change in exposure. Without one will have a full f-stop of difference between one frame and the next. That would be noticeable to the untrained eye and unless it is an intended effect it will be jarring.

You don't need a declicked lens and the situations where they are essential don't come up that often (and like all limitations can be worked around) but it will give you more options. Of course if you are operating the camera by yourself you already need three arms if you want to control everything on the fly simultaneously in a move. :)
 
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I declicked my lenses myself, and I haven't used the functionality yet. I'm considering re-clicking them, to avoid the occasional accidental iris shift.
 
You don't just need smooth aperture for iris pulls. It also allows precise exposure matching between different lenses when you switch angles and framing. This is most useful when lenses are T-stop marked, but can also be used with declicked f-stop marked lenses together with grey cards, waveforms, etc.
 
Maybe my jobs are boring, but i haven't needed iris pulling yet. I can see though how it would be very useful at long takes over different lighting situations. But… I just haven't been a in place like that yet :D
 
I have de-clicked Duclos modded Zeiss lenses and I agree that the most helpful aspect is that they are continuously variable. Have you ever wanted to set your aperture between clicked stops on your clicked lenses? I have, when I had lenses like that. So it's best for that and I think well worth it.

You can do aperture pulls but they are very hard to manage on still lenses in any case. I've done it only a couple of times in the years that I've had them. Mostly outside to inside or vice versa. Cinema lenses are set up much better for aperture pulls. At least if your still lenses are de-clicked you can try it. It doesn't work at all with clicked lenses.
 
I'm not a fan of de-clicked lenses for the exact reason dusty mentions. Lenses come on and off, sometimes get passed around and change hands. When I set a particular f-stop, I like to be able to set it back there without any variance. But that's just me.

As for pulling iris, I just haven't had to do it much but I also have some Nikon DX zooms which have no iris ring and can be controlled smoothly on an MTF or ProLock adapter. So I'm covered.
 
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