FS700 - 13 Stops of Dynamic Range?

Only in RAW mode maybe, but not in REC709! Abel Cine measured it and says it´s 11,5 but if I can count right it´s only 10,5 stops
 
In RAW mode, 13 stops sounds a lot more realistic. I really wish Sony would give us more details in regards to release and cost of the 4K recorder (I know it's extremely unlikely/impossible, but if Sony built a proprietary 4K recorder that fit where the FMU currently sits, that would be phenomenal!) - it's getting closer and closer to the FS700 and Blackmagic Camera launches, would really love to know where to focus my money and attention.
 
Don´t know where Eldred saw that 13 stops. The FS700 prototype I had was 12ish. max (depending on gamma curve you used)

Frank
 
Postmaster said:
Don´t know where Eldred saw that 13 stops. The FS700 prototype I had was 12ish. max (depending on gamma curve you used)

Frank
Click to expand...

Hey Frank! Loved "Man of Steel" - best FS700 piece I've seen yet!

When you say 12-stops, was that using the internal-codec, or recording to an external-recorder with a different codec?
 
FelixGER said:
Only in RAW mode maybe, but not in REC709! Abel Cine measured it and says it´s 11,5 but if I can count right it´s only 10,5 stops
Click to expand...

Can you explain how you only get 10.5 stops? I've looked at the scope Abel posted, and I (like them) count 11.5.
 
Simon Shasha said:
Hey Frank! Loved "Man of Steel" - best FS700 piece I've seen yet!

When you say 12-stops, was that using the internal-codec, or recording to an external-recorder with a different codec?
Click to expand...

I used mostly a Samurai.
Only the slomo was on card - found out later, that you can record the slomo on the Samurai too though.
 
The slomo is recorded to an internal buffer first. Than it got written to the card. While that, you can watch your slomo in realtime on the screen and the same signal is present at the HDM and SDI ports at that time. So if you just hit record on the Samurai during that process, it records just fine.
Quality difference is, what it always is: AVCHD vs. Prores 4:2:2.

Frank
 
I still don't understand why people say "11.5". Look at that chart -- it's 10.5, max. Forget the "+" and "-" numbers, just count the bars. There's ten stops above black, and then a half-mushed stop. Ten and a half.
 
Barry_Green said:
I still don't understand why people say "11.5". Look at that chart -- it's 10.5, max. Forget the "+" and "-" numbers, just count the bars. There's ten stops above black, and then a half-mushed stop. Ten and a half.
Click to expand...
Its that affirmation that they bought the right gear.
 
I've said before that 10.5 is also pretty tough to physically get out of the camera as usable range (same for all of these cameras though, dSLRs, AF100 etc,.). I'm setting up a transmissive step wedge and intend to compare the curves and PPs so i can better understand how the black gamma is working, a side effect of that should get me some real world dynamic range tests too.

cheers
paul
 
dcloud said:
Its that affirmation that they bought the right gear.
Click to expand...

Abso-****ing-lutely spot on!

They'd be happy with 10.5 stops but to read 11.5 they'd ecstatic but to find one source quoting 13 stops and suddenly they're a "Cinematographer!"
 
Took the 700 for a walk this afternoon to find a high DR real world scene
To the naked eye, the foreground was much darker, than what you see in that grab.

Contrast.jpg

It´s in the neighborhood of 11.5 stops (was a bit hard to meter, since the light was changing fast, as I run around with my spotmeter)

I lifted the shadows a bit and brought down the lights to legal levels.
I was surprised, that there was more room in the highlights, than in the shadows, that had a pretty flat bottom.


Frank
 
Which Cinegamma is that?
And what is it about those knee levels. I read the knee option is still enabled with cinegammas unlike on EX cameras.
Is 105 / +5 knee off, then ?
 
That´s right, you always have the knee enabled - I had it at 105/0 - Cinegamma 4, black levels at -10.
Would have been better, to have the black levels at zero and preserve the highlights a bit more.
But I´m still learning that camera.
 
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