DB and unfiltered tungsten lighting - any issues ?

[Fritzer]

I'm wondering if any of you have experience with shooting tungsten lighting, without using color correcting filters , but color correct the files in the Raw converter (Leaf Capture).

I'll be using my Aptus 75 in the studio, and need the results to be neutral in color .

The lights will be Dedolights, Arris and such, all proper halogen tungsten lamps .

[mediumcool]

I’ve done this in an emergency, doing grey balance on my Aptus 22. Here are some examples:

Screenshots from C1 showing two frames of a session; first frame shot with daylight balance (available fluoros, tungsten, daylight).



Grey-balanced on leather vest; close.



This one was balanced on the Aptus, using the OOF grey table on the RHS of the frame as the neutral target (seemed a little warm to me).



Painting on MLKSHK.

If doing colour-critical work such as art repro, you can use greyscales or colour-checker cards to maintain control. You can also check histograms in Photoshop to see if there is any combing; 48 bits is a lot of information, so I haven’t seen any problems yet.

HTH

[HarperPhotos]

Hello,

I use Dedo’s when shooting table top product, food and cars using my Leaf Aptus 75 and have no issues with colour correction in CS5 ACR.

Cheers

Simon

[K.C.]

I shoot with Dedos any time I can, they're such great lights.

Just remember that if you're dimming them your K will drop a couple of hundred degrees at low power compared to full. They're typically a  little cooler than my Arris. That of course depends on the bulb in the Arri.

In my studio Dedo's run 3200K to 3400K and Arris 2900K.

[Fritzer]

Thanks a lot, just what I wanted to hear .

[Schewe]

Thanks a lot, just what I wanted to hear .

Just be aware that shooting under tungsten stresses the blue response of the chip. Remember only 1/4 of all the photo sites are blue response and the amount of blue light in tungsten is very, very low. As a result, you'll end up with noisier captures under tungsten when daylight balanced. Note adding even 1/2 or 1/4 CTO blue to the lights helps a lot. Alternatively, this is a case where ETTR can also help reduce the noise and improve SNR. In any case, this is a situation where you don't want to underexpose and try to make big moves in post.