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Bjarne H. Nielsen

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2017/11/12

Three macro photos

Over the years I have taken many macro photos, and macro photography has become the kind of photography I do most. I have now and then taken up other forms of photography, but I tend always to return to macro photography. Here I would like to highlight three of them.

Busy beeBee in Grape Hyacinth (bi i perlehyacint).

The picture of the bee in the grape hyacinths is not my first attempt at macro photography, but it is a quite early one, and looking back it was a turning point for me. It was in many ways here it all started.

Back then I didn't have any equipment made for macro photography, so I did what many others also have done - I used my tele-zoom and I cropped the picture in post-processing. My camera didn't have as many pixels as the cameras of today, but luckily cropping need not be tight - tele lenses can often get decent reproduction rates and often better than other kind of lenses.

Tele lenses also has a natural shallow depth of field that can be both a blessing and a curse. Here it was a blessing, because it isolated the main subject nicely from the background. I am not sure how the background got yellow, though, it should be either green from plants or red from a brick wall.

It also demonstrated the point, that you should try to get in level with what you're trying to photograph. Doing macro photography that often often means lying down, but here it wasn't a problem, because I was standing in a driveway and the flowers was on top of a garden wall.

If you suspect by now, that the picture was pure luck, and I just happened to see a bee and thought, "oh, I try a snap of that, though it will probably won't be any good", then you're probably right.

Small White on windowA Small White butterfly sitting on a window. This is a female as seen by the black spots on the forewing.

Another favorite of mine is the Small white butterfly sitting on a window (I have rotated it).

That it is a Small white can be seen from the black marking on the edge of the wings. The markings on the Great white butterfly are bigger. It can also be seen to be a female because of the pairs of black dots on the wings.

I like the way the reflection on the glass adds to the image. A single reflection would probably have been stronger, but it isn't that often that butterflies lands on a reflective surface, so I had to work with what I got. There are two obvious reflections, one from the front and another from the back of the inner glass pane. In the bottom on the picture another pair of reflections can be seen; these are from the outer glass.

I also have version where I am align with the butterfly to get the most out of the shallow plane that is in focus, but it turned out to be quite uninteresting.

SnailsAn experiment in focus stacking. Wouldn't have worked with faster animals.

The picture of the two snail getting intimate, was actually an experiment in focus stacking. If you want to focus stack, you'll need the motif to be perfectly still. And I mean really, really still. Even on a day without any wind at all, plants will still move just slightly, ruining the picture. So the snails were perfect.

They were sitting on the side of a storage box in a corner of a terrace (yes, the surface was vertical, but I think it looks better tilted like that). And light was rather harsh, with direct sun and deep shadows, so I put a semi-transparent reflector between the snails and the sun.

If you want to focus stack, you will need to take several photos while slightly altering focus in between. You can invest in a macro focusing rail (which incidentally will aid in focusing macros as well, as it is easier to move the camera in a controlled manner than it is to adjust focusing), but they comes with a pricetag and you cannot go cheap because engineering quality matters.

I went another way: I found an app to control my camera remotely that could automate taking a series of photos with slightly different focal length. Due to the way lenses focus a short distances, this is an inferior methods, but hey, it turned out fine. I wont link to the app, though, as it seems to have been abandoned by the developer.

I have tried doing more images with focus stacking, but it is really challenging. Some day I will build a macro "studio" with a light tent and a proper setup, but until then, this will be my best focus stacking picture.

Snail detailA crop of a macro photo revealing something not very obvious to the naked eye

One of the thing I really like about photography is that I can draw attention to interesting point of views. That I can show interesting angles. And macro photography is often about showing that there is an interesting world in the small scale.

But even I can get surprised by my own photos, and I did while post-processing the picture of the two snails, because an little otherwise unseen detail was hiding. If you go back the picture of the two snails, you can find it there too, if you look closely. And it shows that even bugs have bugs!

Read more in Macro

macro makro

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2017/11/05

Sidecars

TL;DR: If you use Adobe Lightroom, enable "sidecar" aka XMP files. It will store a portable modification log next to each picture file.

Windows 10 recently managed to force a huge and hugely fatal update on me. It failed miserably. And then it failed to recover. I spent weeks trying to rescue it, and learned two things: There is next to no feedback from Windows as to what is wrong, and some of its "recovery tools" will matters worse; somewhere along the way it managed to take with it a few folders in the Users folder.

It wasn't the end of the wrong. I was already dual booting a Linux Mint and I had offloaded most data to another partition. I really only used Windows for gaming and for photos, mainly using Adobe Lightroom. The rest had long ago moved to Linux.

But it is amazing how much the "rest", that Linux excels at, feels like work!

As matters stand, I have all my photos, but I managed to loose all post processing with Adobe Lightroom. And it needn't have been this way, because I after the fact realized, what I should have done:

I should have enabled XMP metadata aka. "sidecar" files.

XMP aka. Extensible Metadata Platform is a standard pioneered by Adobe for storing extra metadata about pictures. For proprietary file formats like raw files, Lightroom will store the the information is a file next to the picture file with extension ".xmp" - a so called "sidecar" file. For formats that allows for this kind of data, Lightroom will store it in the file (beware that this will likely go for exported files as well, so you might share more than you bargained for).

This will make backups easier, as the metadata is next to the photo, and instead of loosing an entire database worth of metadata in one go due to disk corruption, the loss will likely be isolated to a few photos.

Not all information goes into the sidecar files, so you will still need to backup your catalog database in Lightroom. But I would sure wished I had enabled sidecar files before the fatal Windows update.

Anyway, as much as I love Adobe Lightroom, I have decided to go for the open source alternative darktable - I'll write a post about it later. It uses XMP files too.

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2017/09/02

The invasion of the Red Admirals

Last weekend was warm and calm and we had an invasion of Red Admiral butterflies (Vanessa Atalanta) in our backyard. They were very likely lured here by following the sweet smell of ripe plums, of which some were even starting to ferment.

Feasting on fermented fruit can make them tipsy and some of them had clearly lost some inhibitions. It was easier to get close - and when they were resting they were surprising stationary. Some even landed on me; it is both fascinating and frustrating to have butterfly land on the hand that holds the camera!

Admirals feasting on plums

And they were all over the place. Most were crawling around in the grass from plum to plum, but they were also in the trees around the plum tree, resting, and even on my flag pole. There were so many that I couldn't count them, but I'd say at least 50, probably more.

It is quite common from Red Admirals to swarm on ripe plums and other fruits. Or the sap of wounded trees. Still it was the first time I have seen them in such numbers in my garden, which probably it due to our plums being especially abundant this year and the calm, warm day being a weekend and not a weekday, so I was there to see it happen.

Admirals in plum tree

The reason why they are so active eating right now, is that they are migratory. They are very strong flyers that can fly up to 36 hours in one go. And they migrate to south of the Alps in order to mate there and lay the foundation for the Admirals flying in next year. Next years butterflies will mate here and lay eggs, mainly on nettles. If winds are favorable they can reach the Alps in 2-3 days, though normally it is a trip taking up to two weeks.

In Denmark those few that stay will not survive the winter. They do not have the trait of other Nymphalidae (danish: takvinger) to seek out cracks and chinks, but try to weather it out on branches or fallen leaves. And if the winter doesn't get them, old age will.

Sugar has half the energy per unit of weight compared to fat, so they will not be able to use it immediately. Still they do need a lot of sugar and that is why they are so attracted to ripe fruits and to the butterfly bush (Buddleja) in the late summer and early fall.

Admiral on plum

In Danish (and I think this goes for the other Scandinavian languages as well) the Red Admiral is plainly referred to as an Admiral. We do have the term "Hvid Admiral" (White Admiral) but that is another butterfly (the Limenitis Camilla). In English it is also know as the Red Admirable, which turns out to be much more correct, because the name is derived from the Latin word "ammirabilis". So while their name often is justified by referring to the uniform of an Admiral, and while they are strong enough flier to cross the seas even to isles in the North Atlantic, this is not the original meaning of the name.

And apparently in the dark ages, where superstition was much more widespread, their black wings with blood-red markings and white stripes got them associated with the Devil and made them harbingers of death and ill tidings. Much like black cats to some degree are today, I guess. So much for being admirable...

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Admirals and Plums (7 items)

Read more in lepidoptera

admiral lepidoptera vanessa atalanta

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2017/08/06

The beginning

"Every thing must have a beginning ... and that beginning must be linked to something that went before." -Mary Shelley, Frankenstein

It has begun: I am making my own online photo album.

But it didn't come to be by it self. Something went before...

Years ago I started out sharing my photo on the web via Picasa, which at the time had a no-nonsense approach. But the Google first began to "improve" on my photos (I have done postprocessing, and perfection cannot be improved, tyvm!) - and then Google folded Picasa into their G+ experiment, which turned out to have a quite different agenda. Now my albums ends in 404.

So I migrated to Flickr, which at the time had a much better proposition for us, non-casual amateurs. But I have to admit, I never really was comfortable with Yahoo, and even less now that Verizon owns Flickr. I could never convince myself that we had compatible agendas, and as time goes this feeling only grows. I feel history is repeating. 

Which is why this site was started in the hope that it could be a more permanent home for my photos. I will still share photos elsewhere, but this is the base. I hope that finally I can be in control.

Oh, and that wasn't even the beginning. Back it in the early '80 I got a Canon AV-1 35 mm film SLR camera. That was probably the beginning. Though actually something went before that too. But that is a story for another time...

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