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UltravioletPhotography

Buttercup of unknown species, BUG5 filter stack


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I liked the result from a photo-stacking of 11 images with all the details.

The image is posted at high resolution.

Please double-click to see it at full 100% to reveal all details

post-150-0-98745600-1625555735.jpg

Camera: Sony A7III

Filter-stack: Schott S8612, 2mm + SchottUG5, 1.5mm

Flashes: 2 UV-converted Godox AD200

 

The flower gradually bent over during the shoot, but ZereneStacker handled that well.

When the flower was collected it was not at all bent like in the final picture,

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A very nicely rendered Buttercup, for sure.

 

Without additional documentation of the general habit, folage etc. it is hard to pin down this to a species. Probably something around Ranunculus acris aggr.

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Unfortunately I did not take any picture of the entire plant at the collection site.

I have to remember doing so in the future.

 

It was collected early May beside a walking path at an uncultivated slope.

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We can rule out Ranunculus bulbosus and R. repens. That time of the year R. auricomis aggr. and R. acris aggr. are plentiful. The latter aggregate complex of microspecies is the most probable candidate.

 

You didn't mention the lens used?

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Sorry, but I do not remember.

Most likely it was an El-Nikkor 80/5.6, but it might also have been the Novoflex 60mm Macro Noflexar.

 

Here is the same flower, the first and last images of the shooting session 15 minutes in between, with a BUG3-Stack.

I switched filters two times and the BUG5 images for the stacked image was in the middle of the sequence.

The flower was drooping very quickly despite sitting in water.

post-150-0-86086900-1625564451.png post-150-0-01407600-1625565130.png

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