Close Encounter (and sharpening photos in post processing)
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My suspicion is that this is an instance in a courting ritual, the larger fly being female and the smaller being male. Given the universal proclivity to anthropomorphize I am sure you can make up your own story.
I had a problem with this photograph in that it was not tack sharp and while sharpening helped in some places, it also over-sharpened in others. Using a mask I painted away most of the over-sharpened results, but it was never going to be perfect. I suspect few will notice that the interior of the flower has some highlights where the flash has caught moisture and these have been exaggerated by the “sharpen filter”. I think it is more likely that the resulting softness influences your view of the encounter.
Sharpening in post-production is a skill and it often gets overdone to the point of anomalies (called artifacts) appearing in photographs from over-sharpening. There are books on sharpening and several techniques one can use in Photoshop to sharpen files.
Your camera sharpens also the raw file or jpg. Lightroom and many other types of software sharpen on import and export and some websites automatically sharpen photographs posted on them. As a result you should evaluate the sharpening you need more than once. In my experience as the technology advances, the opportunities to over-sharpen or to decide on keeping an over-sharpened image over having no image are increasing.
My first step is to ensure that my photographs have as few over-exposed highlights as possible as these tend to sharpen badly. Similarly I try to avoid high ISOs that add noise that can also impact sharpening. I apply any creative (as opposed to import and export) sharpening with a mask selectively. One thing is certain, all digital photographs need to be sharpened in post-processing, the question, is how much and that requires some practice.