Weekly Abstract and Experimental Thread #2 (4-1-2025)

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barondla
Members 302 posts

April 7, 2025, 5:05 a.m. April 7, 2025, 5:05 a.m.
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@MikeFewster has written:

@streamdream has written:

@MikeFewster has written:

Venice

Lovely! I've been very partial to caustic waves recently. I am fascinated by how clear the reflections here are. They are warped, yes, but they are remarkably sharp. Especialy that bright red and yellow bit. You can still make out the floral and geometric pattern on the reflected object. The tops of the light buildings to the left and the distorted street signs. I have to agree with barondla that it looks like a modern painting. I love that bright pop of red and yellow juxtaposed with the muted colours of the shaded buildings and how that red/yellow thing seems to be confined by its own curviture. I would almost suggest cropping out the buildings to the left, to intensify that abstract feeling, as they ate the most clearly structural object within the image and it fights a bit for attention with the star of the image.

The photo is of reflections in a canal. I took quite a few of reflections in the canal and more of them will probably show up in this thread. The red and gold is a flag that was hanging on a pole projecting from the building. It's the official flag of Venice. The Winged Lion of St. Marks. The following link shows the flag (this isn't a photo I took.) c8.alamy.com/comp/CPYNAB/flag-of-venice-venetian-flags-showing-the-winged-lion-of-st-mark-CPYNAB.jpg

Looking forward to seeing more of these.
Thanks,
barondla
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barondla
Members 302 posts

April 7, 2025, 5:11 a.m. April 7, 2025, 5:11 a.m.
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@3DGunner has written:

@barondla has written:

@3DGunner has written:

The lightning

The electrical discharge that ignites the gas in a piezoelectric lighter.

How did you get the correct timing to capture the spark?
Thanks,
barondla

The scene was prepared and the lighter fixed, the camera with macro lens on the tripod, manual focus. I set the exposure time to 1s, I did the shutter release with IR remote control in the dark and the ignition was triggered while the shutter was open.
The magnification ratio being high, the DoF is very narrow.

Figured you must have taken this in a dark room. One second doesn't give much leeway to get everything synchronized. Appreciate the extra how to info.
Thanks,
barondla
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3DGunner
Members 222 posts

April 7, 2025, 10:48 a.m. April 7, 2025, 10:48 a.m.
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I determined that one second is the optimal time to obtain the desired result. A shorter time risks not capturing the moment of the electrical discharge. A longer time risks capturing too much light after the flame is lit.
The scene self-illuminates. As a result, you can only adjust the ISO sensitivity after the aperture has been chosen to obtain a reasonable depth of field and for the noise to be within limits that allow its subsequent elimination without compromising image quality. Several attempts are needed, because the electrical discharge does not occur on exactly the same path and the result is not entirely reproducible.
It is the same technique used in the case of lighting the match, except that in that case I left the shutter open for several seconds.

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Fireplace33
Members 1301 posts

April 7, 2025, 11:39 a.m. April 7, 2025, 11:39 a.m.
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@3DGunner has written:

I determined that one second is the optimal time to obtain the desired result. A shorter time risks not capturing the moment of the electrical discharge. A longer time risks capturing too much light after the flame is lit.
The scene self-illuminates. As a result, you can only adjust the ISO sensitivity after the aperture has been chosen to obtain a reasonable depth of field and for the noise to be within limits that allow its subsequent elimination without compromising image quality. Several attempts are needed, because the electrical discharge does not occur on exactly the same path and the result is not entirely reproducible.
It is the same technique used in the case of lighting the match, except that in that case I left the shutter open for several seconds.

On Olympus cameras there is a mode called "live Composite" that could probably work very well for such a situation.

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3DGunner
Members 222 posts

April 7, 2025, 2:56 p.m. April 7, 2025, 2:56 p.m.
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What I did doesn't work like that. What I did requires a single exposure.
What he did in that clip with the function called "Live Composite" can be done with any camera that allows time-lapse, and from a sequence of images obtained through time-lapse, sets of images can be extracted then manipulated in post in any desired combination.
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Fireplace33
Members 1301 posts

April 7, 2025, 4:32 p.m. April 7, 2025, 4:32 p.m.
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@3DGunner has written:

What I did doesn't work like that. What I did requires a single exposure.
What he did in that clip with the function called "Live Composite" can be done with any camera that allows time-lapse, and from a sequence of images obtained through time-lapse, sets of images can be extracted then manipulated in post in any desired combination.

True, I guess the only difference is that the live composition mode on Olympus does that pp all in-camera and gives a single RAW image as output.
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minniev
Members 1993 posts

April 7, 2025, 8:55 p.m. April 7, 2025, 8:55 p.m.
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@MikeFewster has written:

Venice

Wonderful reflection image with great colors and sinuous forms, (it looks good turned on either side or upside down, too).

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minniev
Members 1993 posts

April 7, 2025, 8:57 p.m. April 7, 2025, 8:57 p.m.
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@3DGunner has written:

So, in the picture are the residues that remain on the matchbox after a match passes by and lights up.😀

Wow, that's impressive. Well done. I'd have guessed it was a gas-lit fireplace being fired up, which was impressive enough.

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minniev
Members 1993 posts

April 7, 2025, 8:58 p.m. April 7, 2025, 8:58 p.m.
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@Woodsider79 has written:

Along the Forest Path

Larch trees in autumn with ICM

Lovely impressionistic capture.

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3DGunner
Members 222 posts

April 7, 2025, 8:59 p.m. April 7, 2025, 8:59 p.m.
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@minniev has written:

@3DGunner has written:

So, in the picture are the residues that remain on the matchbox after a match passes by and lights up.😀

Wow, that's impressive. Well done. I'd have guessed it was a gas-lit fireplace being fired up, which was impressive enough.

Thanks!👍
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minniev
Members 1993 posts

April 7, 2025, 9 p.m. April 7, 2025, 9 p.m.
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@Fireplace33 has written:

Just an icicle

but sort of looks somehow abstract :-)

Ice itself seems rather abstract of its own accord. And the closer you get to it, the more abstract it becomes. This seems like a witch's hand...