So your light provides accurate color, what about your modifiers
I recently posted a self portrait I made while testing the new Interfit Studio Essentials LED monolight. I got some comments about how good the color looked and asking if I did much color correction on the image. I actually did very little color work on the image (shown here). I made one frame with an X-Rite Color Checker Passport and the second frame without. Using Adobe Lightroom Classic's white balance picker, I clicked on the middle gray swatch on the Color Checker and that made a small change, -100K and -5 tint. I thought the image was a bit too saturated, so I also pulled down the vibrance slider -11 points. That was it.
Or was it????
That got me to thinking about the modifiers I have available. I see so much concern over the color accuracy of strobes, fluorescent lamps, and LEDs. But not so much talk about the modifiers. With so many types and brands of modifiers I figured there must be differences. And I was right. Sometimes big differences.
For the above photos I used two LED monolights on me each with an Interfit 1x3-foot strip box. The light on the background was a Honey Badger studio strobe at its lowest power setting. I was quite happy with the results. But what about my other modifiers.
I grabbed a few modifiers: 7-inch silver metal dish, 24-inch pop-up that comes with the LED monolights (and also with the Honey Badger), a 20-inch metal dish reflector, the same reflector with two different diffusion socks, a 22-inch white beauty dish, a Photoflex 42-inch umbrella, a Photek 46" umbrella (a Softlighter without the diffuser), a Westcott 40-inch shoot-through umbrella, a Westcott Apollo Orb, an Interfit 1x3-foot strip box, and a 32" Photoflex white translucent pop-up diffuser panel. I set the camera (this time a Canon EOS M5 mirrorless with the 70-200 f/4 IS lens. AV mode at f/4.5.
The first set of images shows have no corrections, just as they came out of the camera. For the second set I used the White Balance eyedropper to balance on the middle gray patch. I also attempted to get the exposure evened out between all of the modifier images (click on each image for a larger version). Quite a variety of colors!!
With the camera set to Daylight White Balance, Lightroom read it as 5000K and +9 tint. Here is a list of the color corrections for each modifier:
7-inch silver dish: 5050 (+50K) +1 (-8)
24-inch popup: 4900 (-50K) +13 (+4)
20" dish: 4800 (-150K) +15 (+6)
20-inch + speedotron diffuser: 4450 (-550K) +6 (-3)
20-inch = mola diffuser: 4250 (-750K) +14 (+5)
Beauty dish: 5200 (+200K) +10 (+1)
Photoflex umbrella: 4900 (-50K) +4 (-5)
Photek umbrella: 4820 (-180K) -1 (-11)
Shoot through umbrella: 4800 (-150K) +8 (-1)
Apollo Orb: 5000 (0) +14 (+5)
Interfit strip bank: 4900 (-100K) +14 (+5)
Photoflex disc: 4650 (-350K) +4 (-5)
For reference, a +K value added yellow, -K added blue and +tint added magenta and -tint added green.
Have you done a comparison of the effects your various modifiers have on your lights?
Thanks for playing along...