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Colorado: Black Swallowtail Gestation


fred_j._lord

This is the start of a short series on the chrysalis phase of a Black Swallowtail Butterfly. We used to plant dill weed to attract them for the kids. This caterpillar has just attached itself to a dill weed sprig to change into a chrysalis. I will insert the chrysalis image later. Since everyone is doing butterflies I thought I'd go back to basics.

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From the category:

Nature

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The next image, in a day or so, will be of the caterpillar's change

into a chrysalis. It did go on to change successfully into a beautiful

Black Swallowtail butterfly.

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Nice unusual pastel colours. Pleasing to the eye... Great compostion and texture detail. Don't see anything to change really. Cheers, Alex
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Fabulous light and color, almost mindless.

The temptation now is to intellectualize when there is no place for it. The center is the brightness about 1/3 of the way down from the "head," say, near the stomach. The tail is the tail. But the head, well, it's just not what one would expect in a head.

Not intellectually, anyway.

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The head shape is the precursor to the metamorphasis into a chrysalis. This caterpillar was perfectly formed when active and made a normal transition to a butterfly in all respects. Note the slender thread it wove which holds it to the stem.
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It isn't a Kodak Gray Card but a white piece of board. This was shot as described with the Mamiya RB67 and the 65mm lens. The 65 was the only lens I could focus close enough with on the RB because of the bellows limitations. On the RB the lenses don't focus, the bellows does. It was stopped down to f/32 plus bellows factor and this is probably cropped to 80% of the 6cm x 7cm frame. It was lit with a very powerful studio strobe which didn't seem to bother the insect at all. The 65mm was always the sharpest of my RB lenses.
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Wonderful soft lighting for all the nice details. The background is nice and smooth. Wonderful subtlety at work here. Did you also try one with a weak fill flash? I am just wondering how that might look.
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This was shot with a Speedotron studio strobe. Its minimum power was 200 watt-seconds (200 joules). It was in a homemade softbox and the fill light was just another white card just to the left of the insect. 200 watt-seconds is a guide number of about 400 with ISO 100 film. In other words, it was all fill flash as I shot this image in the middle of the night in my basement.
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Ah, I saw f/3.5 by the Lens and thought that was the aperture used here. Duh.

 

Thanks for the technical info, you must be part elephant to remember all that stuff.

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The only part of me that's elephant is my waistline. The image is on 6x7 film and I had just sold my RB67 to buy the D60 so I remember it had to be the 65mm lens as was the only one that would focus close. I had to stop it down to the max. Now, here's the clinker, I think the 65mm only went to f/32 so that was a guess. Some of my view camera lenses went to f/64. They're all gone now!
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