I am taking many shots in a ( proper) softbox. I am using a 23W white coated lightbulb 2 either side of the box. I was capturing some pearl resently and I realized a strange hue ( cyan) around a reflection caused by a lightsource. The sample picture show well what I am talking about. I don't mind a white "spot" as a reflected shine but I don't know why I am getting a cyan tone as well. Makes no different if a light is closer or away a bit from a side wall of the box. Also make no different if I use different white ballance on my canon 400d. No other light use while I am taking a photo.
Please if you know what cause this effect help me identify it....Thank you

seeya Tunde

I'm just an amateur so I don't think I can help much but hopefully others will chime in... The only thing that comes to my mind is your camera setting of white balance - you never mention what it is, maybe that's the problem?

Good luck :-)

Lovely composition, btw.

@Marka...Far as I remember the white ballance was on AWB or on a sunny. This two set up worked a best concerning a cyan hue.

seeya  Tunde

Hello,

It's a nice example of what they call chromatic aberration in this case a cyan fringe appears in contrasty zones.(surrounding whites here). It comes firstly from the lens you are using and after the sensor ISO settings can be part of the phenomenon too. Some raw processing programs have correction tools for that kind of aberrations.

If you only have a JPG file is still possible to (color range) select the cyan tones  of the picture and slightly correct the effect with an adjustment curve too.

( IMHO I suspect (too) a non constant color temperature in the softboxes, and when you are making '"pack shots" ( pictures of objects, props ...), it's always good to use custom white balance based on a "gray" (or white) card to avoid color shifting.

I made a quick corrected version ( keep in mind it was quite early for me and the night was long)

I hope it will help you.

Peace.

Aegy

Thank you Aegy for a respond. At least I know a proper name of this "effect" now. Too late here but tomorrow I will look into this Custom White Ballance bussines.  Nice corection too, actually I like a deeper pink background.

I use 100 Iso only and a lens is a 17-55 canon lens what is came with a camera. I guess not a best quality.

seeya  Tunde

Re.,

If you like this kind of shoots (and use a 400D) the Canon EF-S 60mm macro 2.8 is a very nice lens with a nice image quality ( good quality price rating ) however it can only be used with 1.6x crop camera ( 400D, 450D, 40D ...).

Peace,

Aegy

I would suggest using a longer shutter speed and a smaller aperture. Most lenses perform worst for CA and vignetting when wide open and you may need to find the best sweet spot for your particular lens

Aegy....tahnks again for more option. Actually I use my canon macro for some of the pearl shot and a cyan bleeding is even worst. I will combine your advise with Danny's. Using a macro and a longer shutter speed. Will see if I manage to do better.
Thank you guys and girl....

seeya  Tunde

The reasons are stated...starting with white balance custom fitted to the lighting.  Then besides the other technical reasons,  reflections or other outside lighting will cause color you do not want...not so likely in the box but it can happen without control of other lighting.

Tunde, tell me, what color are the pearls supposed to be?  I will give correction a shot. 

Thanks, Tom.

Oppps, sorry guys I was run away for a weekend trip. So where were we...Tom a pearls color like a pale butter and actually they just an imitation pearl not made by nature if you know what I mean. But I had some earlier shot whit a real pearl I have a same problem with them. The real pearl color is off white.

seeya  Tunde