FX1/Z1 Profile Settings

MH_Stevens wrote on 4/22/2007, 3:26 PM
OK Winrock, just for you. And as the original title was misleading I have re-titled my reply.

This is my take after extensive use and experimentation on settings for the Sony FX1/Z1. I do hope other FX1/Z1 users will read this and comment if they have other opinions as this is subjective.

The choice of settings for the Picture Profiles is not as bewildering as might at first be thought. The reason is that the adjustments for AE shift and AGC Limit are only relevant to automatic shooting and WB tweaks you will likely use colored cards. At the level we are discussing here you will of course be in manual mode. Secondly, Gamma should be ON in all circumstances. The default gamma has a real birthday party video that looks like video look, and your preference of 30p, 24p or 60i will be made for other reasons. Skin tone, unless you are doing specialist people close ups can be left at Medium. So in effect, all one needs tweak is Color Level and Sharpness. Z1 users should also stretch blacks in all but bright light.

I tweak Color Level and Sharpness scene by scene using just one profile channel. This is as easy as a changing Profiles and avoids having to remember what your profiles are, and gives more control than the six presets. So as I say, I use the profile set-up as a camera settings menu using the DV channel, #2 and leaving the others profiles at factory default for quick takes where you have no time to make settings.

Regarding the detail adjustment of Color Level and Sharpness this is limited also because color less than default is weak and color +3 or more looks artificial. My tests and experience show me the best color setting for a good film look in normal use is +2. Regarding sharpness there is a similar small range of options. 9 or below looks too soft for impressive HDV and above 12 the picture degrades. My preference is 10, one stop softer than default. I combine these settings with the Gamma ON and Cineframe 30 (24 is nonsense and throws away resolution).

So in summary, MY default is Color +2, Sharpness 10, Gama ON, Cineframe 30 and I have my Zebras set to 90 so I always slightly under-expose. Special circumstances will dictate tweaking as you go. For example, the other day I shot a sharp gravel path and the softish 10 ruined the effect, so I set it to12. A warm evening light might over saturate with the +2 so I may drop to +1 or 0.

Hope this is informative and I would love to hear others views.

Michael

Comments

johnmeyer wrote on 4/22/2007, 6:44 PM
But is there gamma on the FX1? I think this is only on the Z1 (or perhaps I have missed it on my FX1).
Serena wrote on 4/22/2007, 6:50 PM
Called cinema tone; only one setting (Z1 has 2)
NickHope wrote on 4/22/2007, 10:43 PM
I'm shooting underwater mostly and I run my Z1 with a picture profile that has colour set to +2 and AGC limited to 12dB. My housing has no access to the gain switch so adjusting the gain takes some time using the menu. Hence I shoot on auto quite a lot and I don't want the gain going up to 18dB because then it's horribly noisy. I can set up my housing in advance to run in AE Override mode and with the shutter speed locked at 50 this works quite well so that the iris knob is effectively controlling a combination of iris and gain. But of course the exposure can't be locked down in that mode. It doesn't pump too much with AE Response set on middle but I must admit I prefer a locked down exposure when shooting moving marine life with lights.

I've had sharpness set at 11 in my picture profile but will probably drop this to 10 in the future.

My zebras are on 100 and in underwater work I often let some of the highlights go over 100 as otherwise everything's just too dark and gloomy. In auto exposure mode the camera often lets substantial areas of the picture go over 100.
MH_Stevens wrote on 4/22/2007, 10:52 PM
Nick: Your work sounds like a lot of fun. If I was you I think I would kill the gain altogether. You are right it is very noisy; I never use it.
Serena wrote on 4/22/2007, 11:53 PM
Autoexposure probably works well in average well lit scenes (various people have given it the thumbs up) but I don't like the way it handles high contrast scenes (e.g. sailing) because, as you say, auto will clip highlights with abandon and the result isn't photogenic and no way of correcting in post. In general I prefer to use 0dB gain but 6dB is fine and I've used 18dB for interviews under even ambient room lighting and been satisfied (surprised!) that the noise level is acceptable. These were scenes of low contrast and no extensive shadows, so while noise was visible in areas of uniform colour it wasn't distracting (remember that grain in fast films is "natural" to me). I prefer not to let gain to be auto controlled (even when limited) because I want iris only. Underwater scenes can have a lot of dark and they're the areas that will show noise rather obviously.

EDIT: Most likely you've read Glenn Chan's advice on
related issues.[url=http://www.sonycreativesoftware.com/forums/ShowMessage.asp?MessageID=523057&Replies=11]Glenn Chan[/link]
winrockpost wrote on 4/23/2007, 4:18 AM
Thanks Michael , very informative,, I did my settings probably a year ago or so , have 3 of mine and the default ,and have not touched them since, Think I'll revisit,