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  • Hey all, just changed over the backend after 15 years I figured time to give it a bit of an update, its probably gonna be a bit weird for most of you and i am sure there is a few bugs to work out but it should kinda work the same as before... hopefully :)

3200K vs 5600K

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Rafffaello

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Hi. Sorry if its a wrong question for this forum ,but:
I want to know if i shoot the same scene with tungsten and then HMI (of course camera's WB will be corrected for each).And then see the result .Should i see any difference?.Both shoots is indoor.

Thanks!
 
good question- I am guessing the noise in the blue channel be less. What does everyone else think?
 
The HMI should look better since the camera's natively 5000 degrees Kelvin. If you light with tungsten and manually white balance that's just metadata (there's a RAW viewing mode so you can see exactly what's hitting the sensor without any curves or colour corrections). Having said that, shooting under tungsten light is much better with Build 16 (less noise than earlier builds and the look of any noise is a bit more organic-looking than previous builds), so basically don't be scared off shooting in tungsten environments.
 
The daylit scene will look notably better than the tungsten scene. The noise characteristics will be tighter, the noise floor will be lower and the apparent dynamic range will be greater.
 
I would always prefer 5600K over 3200K. You may want to try some daylight Kino Flo fixtures rather than HMI's if you're shooting indoors.
 
correct... Daylight balanced lights will give much better results. Since the sensor is balanced at 5000k, if you shoot around 3200k, in post you are digitally multiplying the blue channel up, and since the blue channel is historically the noisiest channel on most cameras, you are also multiplying the noise.

It used to be alot more expensive to shoot daylight balanced indoors... but over the last couple years Kinos ( and cheap competitors ), LED lighting, the spiderlights and even home depot have made 5600 balanced lighting more affordable.
 
Jarred Land said:
correct... Daylight balanced lights will give much better results. Since the sensor is balanced at 5000k, if you shoot around 3200k, in post you are digitally multiplying the blue channel up, and since the blue channel is historically the noisiest channel on most cameras, you are also multiplying the noise.

It used to be alot more expensive to shoot daylight balanced indoors... but over the last couple years Kinos ( and cheap competitors ), LED lighting, the spiderlights and even home depot have made 5600 balanced lighting more affordable.
Click to expand...

The Home Depot? Which lights?
 
It used to be alot more expensive to shoot daylight balanced indoors... but over the last couple years Kinos ( and cheap competitors ), LED lighting, the spiderlights and even home depot have made 5600 balanced lighting more affordable.[/QUOTE]

I've found Xenons at Home Depot...or just use a 80D with Tungsten to "feed the beast" as I say.

No? Better then Gelling your Tungsten units in my opinion. The grips/gaffers will hate me for saying that....Build 16 is amazingly better in the noise range. The camera has a slower iso then in B15 which makes sense for a linear gamma image.
 
Jarred Land said:
correct... Daylight balanced lights will give much better results. Since the sensor is balanced at 5000k, if you shoot around 3200k, in post you are digitally multiplying the blue channel up, and since the blue channel is historically the noisiest channel on most cameras, you are also multiplying the noise.

It used to be alot more expensive to shoot daylight balanced indoors... but over the last couple years Kinos ( and cheap competitors ), LED lighting, the spiderlights and even home depot have made 5600 balanced lighting more affordable.
Click to expand...

what about a 80A and its like filter on the camera?
 
It's not just the noise, colors are much more vivid under 5600K than under 3200K, camera or just plain eye ball.

Home depot sells screw in 5600K lights that you can use to make arrays of lights. (And they are effecient and cheap.)
 
Thanks guys!
What if i use Tungsten light and put blue filter(3200 to 5600)?
Is it give me the same result as HMI?
 
yes it should.

but what about shooting 3200 with tungsten, processing at 5000 in red cine and then color correcting it with other software tools back to 3200? Will it be better than doing the conversion to 3200 in red cine??
 
Rafffaello said:
Thanks guys!
What if i use Tungsten light and put blue filter(3200 to 5600)?
Is it give me the same result as HMI?
Click to expand...

You can gel your tungsten lights with CTB (colour temperature blue) but you might find you lose a lot of your light - same with using an 80A or 80B filter to correct the tungsten light to daylight (you lose about 2 & 1 2/3rd stops respectively. An 80C on the other hand should only lose you one stop and get you pretty close to the Red's native colour temperature of 5000 degrees Kelvin).
 
Come on guys.....gelled lights look like chit. Do yourself a favor. Look at theses "FLO LIGHTS" that this guy has on ebay. Same Osram 5600K daylight lamps as KINO FLO and you can swap them out for Tungsten if you ever want to. I bought a few from the guy.....loved them, so I bought 12. You will not find a better deal and the seller is a honest guy.

http://stores.ebay.com/OvalLite-Studio-Lighting

We just shot a commercial for ExMark Lawn mowers and we used these lights. It looked great and the client loved the look.
 
Luis Ortiz said:
The Home Depot? Which lights?
Click to expand...

You can get 5000k screw in fluorescents there. I actually used some to create a little videopodcast greenscreen studio for a friend. I think we used $30 in lighting stuff and a $600 hdv camera and he's pulling perfect keys using keylight for youtube sized delivery.

If he was just a little more sophisticated he could be capturing live and pulling realtime keys.
It's scary what you can do these days.
 
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