color correction please help

slip · 05-13-2011, 06:44 PM

our house has the spiral type florescent bulbs that give off a color temperature that is closer to tungsten then old ballast florescent bulbs.
what type of gel could I use to correct this type of light? I realize that Photoshop can give good results, but when mixed light is involved, I think a gel is a better way to go

thanks

Wheatfield · 05-13-2011, 07:31 PM

An 80A should get you close, but you will have to experiment a bit.
The 80 series filters are for correcting tungsten to daylight. 80A is the strongest, 80b is in the middle, 80C, the weakest.

slip · 05-14-2011, 09:46 AM

Originally posted by Wheatfield

An 80A should get you close, but you will have to experiment a bit.
The 80 series filters are for correcting tungsten to daylight. 80A is the strongest, 80b is in the middle, 80C, the weakest.

are these flash gels? I guess I should have asked the question better

thanks so far,

cheers

**jatrax** · 05-14-2011, 03:52 PM

I've noticed that CFL's are now coming in several 'temperatures'. The local grocery store stocks 2700k, 5000k and 6500k. I think 2700k is what the older ones were.

Surprisingly there does not seem to be any price difference. I've replaced all the bulbs in my 'studio' with 5000k ones so everything is consistent.

Wheatfield · 05-14-2011, 04:20 PM

Originally posted by slip

are these flash gels? I guess I should have asked the question better

thanks so far,

cheers

Those are lens filters. You should be able to get similar gels though.
I got a swatch book from Roscoe a number of years ago and use the sample filters to gel my flash units.

DaveHolmes · 05-16-2011, 08:20 AM

I recently got a pack of gels from Rosco and they're pretty useless to be honest!
Cut far too small for many flash-heads (they work well only on my AF240z) and not long enough to velcro (or attach in any other way) to the side of the flash head..
I have a load of larger cut gels with velcro tabs on the way but I'm £12 down on the Rosco's...

Wheatfield · 05-16-2011, 04:28 PM

Originally posted by DaveHolmes

I recently got a pack of gels from Rosco and they're pretty useless to be honest!
Cut far too small for many flash-heads (they work well only on my AF240z) and not long enough to velcro (or attach in any other way) to the side of the flash head..
I have a load of larger cut gels with velcro tabs on the way but I'm £12 down on the Rosco's...

They must have caught on. The swatches I have are almost big enough for my Metz 60 head.
Anyway, I did a bit of research, and I suspect what the OP wants will be along the lines of either a 1/4 blue or perhaps a 1/2 blue.
If nothing else, the modern Rosco swatches should be big enough to make a filter that will tell you what gel you need to buy.

05-13-2011, 06:44 PM	#1
slip Veteran Member Join Date: Oct 2006 Location: 2 hours north of toronto ontario canada Photos: Gallery \| Albums Posts: 3,535	color correction please help our house has the spiral type florescent bulbs that give off a color temperature that is closer to tungsten then old ballast florescent bulbs. what type of gel could I use to correct this type of light? I realize that Photoshop can give good results, but when mixed light is involved, I think a gel is a better way to go thanks

05-13-2011, 07:31 PM	#2
Wheatfield Moderator Join Date: Apr 2008 Location: The wheatfields of Canada Posts: 15,987	An 80A should get you close, but you will have to experiment a bit. The 80 series filters are for correcting tungsten to daylight. 80A is the strongest, 80b is in the middle, 80C, the weakest. Last edited by Wheatfield; 05-13-2011 at 07:44 PM.

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05-14-2011, 09:46 AM	#3
slip Veteran Member Join Date: Oct 2006 Location: 2 hours north of toronto ontario canada Photos: Gallery \| Albums Posts: 3,535 Original Poster	Originally posted by Wheatfield An 80A should get you close, but you will have to experiment a bit. The 80 series filters are for correcting tungsten to daylight. 80A is the strongest, 80b is in the middle, 80C, the weakest. are these flash gels? I guess I should have asked the question better thanks so far, cheers

05-14-2011, 03:52 PM	#4
jatrax Site Supporter Join Date: May 2010 Location: Washington Cascades Photos: Gallery \| Albums Posts: 12,991	I've noticed that CFL's are now coming in several 'temperatures'. The local grocery store stocks 2700k, 5000k and 6500k. I think 2700k is what the older ones were. Surprisingly there does not seem to be any price difference. I've replaced all the bulbs in my 'studio' with 5000k ones so everything is consistent.

05-14-2011, 04:20 PM	#5
Wheatfield Moderator Join Date: Apr 2008 Location: The wheatfields of Canada Posts: 15,987	Originally posted by slip are these flash gels? I guess I should have asked the question better thanks so far, cheers Those are lens filters. You should be able to get similar gels though. I got a swatch book from Roscoe a number of years ago and use the sample filters to gel my flash units.

05-16-2011, 08:20 AM	#6
DaveHolmes Veteran Member Join Date: Jul 2010 Location: Yorkshire Posts: 1,501	I recently got a pack of gels from Rosco and they're pretty useless to be honest! Cut far too small for many flash-heads (they work well only on my AF240z) and not long enough to velcro (or attach in any other way) to the side of the flash head.. I have a load of larger cut gels with velcro tabs on the way but I'm £12 down on the Rosco's...

05-16-2011, 04:28 PM	#7
Wheatfield Moderator Join Date: Apr 2008 Location: The wheatfields of Canada Posts: 15,987	Originally posted by DaveHolmes I recently got a pack of gels from Rosco and they're pretty useless to be honest! Cut far too small for many flash-heads (they work well only on my AF240z) and not long enough to velcro (or attach in any other way) to the side of the flash head.. I have a load of larger cut gels with velcro tabs on the way but I'm £12 down on the Rosco's... They must have caught on. The swatches I have are almost big enough for my Metz 60 head. Anyway, I did a bit of research, and I suspect what the OP wants will be along the lines of either a 1/4 blue or perhaps a 1/2 blue. If nothing else, the modern Rosco swatches should be big enough to make a filter that will tell you what gel you need to buy.