Monarch Butterfly Wing Close-Up

While it is awesome for many purposes, the Canon Macro Ring Lite MR-14EX II Flash made this monarch butterfly wing close-up very easy to capture.
 
Of course, a monarch butterfly wing photograph first requires a monarch butterfly wing and ideally, a perfect specimen. The easiest source I've found is to raise them ourselves. Well, more specifically, letting the kids raise them. Perhaps even easier would be to purchase the chrysalises, avoiding the higher-maintenance caterpillar stage. Upon exit from their chrysalises, these beautiful creatures pose very nicely until their wings dry, at which point they can be released outdoors.
 
The depth of field at this extremely close focus distance is very shallow and photographing perfectly square on the wings is required to keep all of the little scales in sharp focus. Also, don't think you can make them all sharp at f/2.8. There is enough curvature in the wing to require stopping down significantly. You will likely need at least f/11 and I even went to f/16 here.
 
The Canon EF 100mm f/2.8L IS USM Macro Lens is also awesome for this purpose, but filling a full frame imaging sensor with a monarch wing requires a reproduction ratio greater than 1:1 (1x maximum magnification). While cropping can accomplish this (and APS-C format imaging sensors are smaller), I'm always trying to avoid cropping to ensure that I have as much resolution as possible in my final results. To go beyond 1:1 with the 100 L macro lens (and any other brand similar lens), add an extension tube. My choice was for this image was the Canon EF 25mm Extension Tube II. It reduced the lens' minimum focus distance by just enough to produce nothing-but-wing.
 
When photographing at such short focus distances, lighting becomes a serious issue. First, the lens blocks a lot of the ambient light and using narrow apertures combined with the ultra-short focus distance causes the effective aperture to be even narrower. While you might be able to set a tripod up perfectly to capture a wing, there is also a good change that the butterfly will move slightly before you accomplish that task – and again before you finish retrying.
 
The ring flash was the perfect answer here. The lights are ideally positioned to evenly light a very close subject. The duration of the flash is very short, meaning that motion blur is not an issue and handheld flexibility is available. The color spectrum produced by the flashes is ideal and the light brings out the brilliant color of the subject.
 
I used a manual exposure for this capture and usually use this mode when using a flash. In M mode, the camera applies the amount of flash needed for a proper exposure in combination with the selected aperture, shutter speed and ISO settings. Exposures can then be adjusted using FEC (Flash Exposure Compensation). In this case, FEC was set to +2/3, though I reduced the RAW image brightness by the same amount, meaning ... the camera had the brightness correctly determined in the first place.
 
Butterflies are just one of the many great subjects for a macro flash. What could this flash do for your kit?


 
Camera and Lens Settings
100mm  f/16.0  1/200s
ISO 100
5760 x 3840px
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