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Adjusting Shutter Speed and Iris
I am completely new to the HVX and am hoping someone can provide some basic guidelines for adjusting the shutter speed and Iris.
I am going to do an interview at 1080-30P. The subject will be sitting, and I anticipate very little movement other than the talking head. The HVX will be stationary the entire time on a tripod. I will be doing the interview in a room lit by an Arri lighting kit.
1. Generally, what do you base the shutter speed on? Should I just base it on doubling the frame rate, to set it at 60?
2. Generally, what do you base adjusting the iris on?
Thanks for your patience with my questions!!!!
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3 Replies
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Hi Kat-
Doubling the frame rate is a decent place to start but it’s not really a good rule of thumb. Going below that will result in smeary movement and much above will result in a staccato effect. Shutter can be used in creative ways beyond what looks right- worth experimenting,
As far as iris, you want to learn to use the on-board zebras and your lighting to expose a shot properly. There’s no hard rule for the iris other than it needs to be set at the optimum opening to get good exposure. It can also be used to control depth of field if there is enough illumination to experiment, outdoors with the ND filters for example.
Also I would suggest a quick experiment at 30p vs. 24p vs. 60i. This camera is capable of many different aesthetic looks and I personally feel 30p is the least interesting because it is not the full filmic look of 24p nor the immediate news video feel of 60i and doesn’t mix well with 60i footage from other cameras. It’s sort of an in-between format.
Defining both the artistic feel you want from the footage and the finishing format are critical decisions to make before you shoot. Especially with 30p as it’s the least easy to make changes with in post. 60i can be made to look like 24p fairly easily for example but 30p into 24p look wise is nearly impossible because there are no easy frames to get rid of.
PS- [shameless plug] if you are really looking for a head start on the HVX, I highly recommend a combo of Barry Green’s HVX Bootcamp DVD which goes over the camera operation and then my Call Box DVD which covers the workflow in post-production focusing on Apple’s Final Cut Pro. This is a quite complex and powerful camera and there’s a lot of stuff we can get you up to speed with quickly:
Barry Green HVX BootCamp:
https://dvxuser.com/articles/hvxdvd/
Call Box HVX200 workflow in FCP:
https://www.callboxlive.com/store/product_info.php?products_id=33
Hope that helps. 🙂
-Noah
Unlock the secrets of the DVX100, Apple Color and now the HVX200!
https://www.callboxlive.com -
Call me crazy, but isn’t it impossible to shoot 1080-30P with the HVX?? I’m pretty sure you only have progressive frame rate options at 720… so your choices are 720p/i or 1080i only.
Can anyone back me up on that? Maybe I’m wrong??
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You are wrong. The HVX will shoot true 1080p but it records it into a segmented-frame 1080i format.
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