5600k CFL's and gels

F

fenigirl

Active member
Want to use CFL's that are 91 + CRI, flicker free ballasts to complement day time interior scenes, and heavily diffuse/gel them for night scenes. The bulbs are from blue max lighting. What do you all think?
 
The bluemax, even at 5900K give out a VERY nice light. They (FSS) did, however, change their design recently; and the new bulb design isn't as good as the old one was.
 
I just read about the n:vision 5500k home depot bulbs. So would spending the extra dough on the blue max bulbs be a waste? Better for my budget if I can get out a little cheaper. What is the CRI rating for the nvisions, cant find anything.....

Do you have to mess with the shutter speed on the dvx when using these CFL's?
 
fenigirl said:
I just read about the n:vision 5500k home depot bulbs. So would spending the extra dough on the blue max bulbs be a waste? Better for my budget if I can get out a little cheaper. What is the CRI rating for the nvisions, cant find anything.....

Do you have to mess with the shutter speed on the dvx when using these CFL's?
Click to expand...

It's supposed to be 80, but here's the thing. Someone else reported a slight green cast when using theirs the other day. I never saw this. Also, on another board someone reported a hum. I never have had hum with mine. There is always the possiblity that HD changed their manufacturer and has inconsistent batches between stores. Just like the story with FSS--they changed their manufacturer and now they have 5900K's with a different bulb design that people don't like as well.
 
Yes, they sell those on ebay too with a search for "5500K". I have a couple of them and they were fine. It really irks me though when these manufacturers don't list CRI and make you send them an email to find out. If it's a wonderful CRI, I imagine they post it. If they even know what CRI is to begin with.
 
The way they market these lights is annoying and misleading-"The output intensity is equivalent to 800 watts
of tungsten light "

It's a freaking 150 watt bulb. All HMI bulbs are brighter than tungsten equivalents. They should just name the true wattage of the light and be up front about it.
 
Bucknfl said:
The way they market these lights is annoying and misleading-"The output intensity is equivalent to 800 watts
of tungsten light "

It's a freaking 150 watt bulb. All HMI bulbs are brighter than tungsten equivalents. They should just name the true wattage of the light and be up front about it.
Click to expand...

Agreed. And they aren't even close to what the theoretical equivalent is anyway--way too optimistic. That Alzo is one of the worst offenders of that on all their fluorescent and metal halide stuff and I'm sure many are misled by it.
 
Just curious too.....do I even need to be worried about CRI at all if I can gel the lights to temp correct?

Also, do you have to adjust shutter speed on the DVX when using CFL's?

Thanks.
 
Yes, you should worry about CRI, although not as much as some people do (but no one in this thread so far) :). Something in the 70s would totally blow. But I've been using bulbs with a CRI of 84 and not had an issue. Granted, I'm not checking out waveforms and whatnot, but I haven't noticed any odd color casts in my footage.

I got my bulbs here:

http://www.lightbulbsrus.com/user/productdetail.php?pid=1186

Cheapest I've found. I originally got BlueMax bulbs, but they were out of stock when I needed more, so I tried these. I got them in both 2700 and 5000k. I guess those aren't the technically correct temps to have, but they've been close enough for me.
 
Jason gave pretty much the answer I would have given. We usually get at least one person to chime in (and get personal even) talking about how your video will suck if its anything under 95 :huh: :).

I also agree that I never touch anything below 80. 80 is my personal limit of what I'll use and most of the time I've found it to be more than adequate for most uses. Remember that the CRI of the 4200K common 4 foot tube is 60 actually--I looked up the Osram Cool White and it's 60. And people wonder why there's a sickly palor on people's faces under that kind of lighting. Stick with 80 and above and you're okay.

As for adjusting shutter speed, not necessarily. Depends upon the same factors as does tungsten. You adjust shutter speed based on your style of shooting, the effect you want, etc.
 
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