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The Linesman is a small sculpture on Dublin Docklands to commemorate the men who works the docks unloading the ships, docking the ships and so many other heavy physical jobs
The Flickr Lounge: Photographer’s Chlkce
Rubber Duckie You’re the One
Thank you so much for your views, comments and favs. I really do appreciate every one!
My images are posted here for your enjoyment only. All rights are reserved. Please contact me through flickr if you are interested in using one of my images for any reason.
It’s been a minute since my last post! Working away on multiple projects behind the scenes, but I wanted to share a small series of ultraviolet fluorescence work shot entirely on iPhone. This entry is Clary Sage, which grows large enough stalks of flowers that no additional macro lenses are used to shoot this – and I didn’t even need the wide-angle camera which is normally associated with macro work!
Shot on the main camera of the iPhone 15 Pro Max, using certain apps you can generate 48MP RAW files. They aren’t the same quality that you’d get from a dedicated interchangeable lens camera, but yield surprisingly good results for a phone. The app I prefer is Halide, which in addition to allowing for these massive RAW files will also allow manual control. Control of exposure is important as images like this usually need some fine tuning due to the abundance of black. Manual focus is also critical, with this being set at the closest focusing distance of the main camera without switching to the wide-angle. Doing so would limit the final resolution to only 12MP. Control is important, just like on a “regular” camera.
We planted two Clary Sage plants in our garden and they took off like rockets – it’s a plant I recommend for its beauty and usefulness – can be used as an herb in seasoning food or making tea for certain medicinal uses. Plus, it’s quite the show-stopper when you put ultraviolet light into the equation! For this image I used a number of Convoy S2+ UV flashlights all positioned in a rig of bases (Platypods), gooseneck arms, and clamps from Platypod. Platypod also makes a fantastic phone holder attachment, the best I’ve used: www.platypod.com/products/platypod-grip
To be sure that there is no motion blur in the final image, there’s two main things to consider: timer, and length of UV exposure. Firstly, setting a three second timer in Halide is sufficient to avoid the mild camera shake from pressing the screen. Second, try to set up the entire composition with the UV lights off and the room lights on. Once you get a test shot, and focus/framing look good, switch the lighting around and adjust the UV lights to best hit the subject… but keep exposure minimal. Many flowers get negatively affected from this exposure, sometimes noticeably wilting in less than a minute. Clary Sage is one of the more resilient flowers, but a California Poppy may wilt in seconds. Timing is everything.
Also, be sure to check out my ON1 / KelbyOne presentation on effortless macro photography in the field, a part of the Landscape Photography Conference that kicks off today (my presentation is tomorrow): kelbyonelive.com/on1-landscape-conference/
For smaller subjects I typically use the Moment 85mm Macro Lens on the main iPhone camera for the highest-resolving results. More examples of that usage will be coming soon. The closer you get to your subject, however, the shallower your depth of field becomes and focus stacking might be a necessary complication. Thankfully for this image, it’s just a single frame.
Behind the scenes images:
Our Daily Challenge: Minimalism
Today we went to the “Beyond Monet” exhibit.
Thank you so much for your views, comments and favs. I really do appreciate every one!
My images are posted here for your enjoyment only. All rights are reserved. Please contact me through flickr if you are interested in using one of my images for any reason.
That's Anthony, chef and host, behind the counter at Texas Tavern on Church Avenue in downtown Roanoke, Va. And it's open all night! ©2024 | John M. Hudson
02-05-2025
Gran Vía
Madrid, España
CONVERSACIONES EN SILENCIO SERIE
TALKING IN SILENCE SERIES
MADRID SERIE
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Por Favor no usar esta fotografía sin permiso
I adopted this amazing black cat. I’m so fascinated with him. I didn’t know that black cat a the least adopted and the ones that are more likely to be put to sleep. I guess they have a false stigma. This one is so loving, so funny, so smart, vocal, play-full, and defender of the weak. I guess I’m cure of superstition!
It was hard to avoid any women's football as our holiday in early July - every town in Switzerland there were reminders like this one.
This filled the middle of a roundabout in Spiez down from the train station, it was truly large eye catching display.
Well done to the UK Women's Football Team what an excellent result.
Cascata dello Schioppo - Carpinone
Middle Tennessee has had some crazy weather with 6 1/2" of rain with flash floods and amazing lightning. Nothing like ending July with a bang! July 2024
Common Mallow (Malva sylvestris) is a flower that grows as “weed” in our gardens, and I often leave it be – the blossoms are beautiful, and it can be beneficial / edible. Young leaves can be eaten in salads, and older leaves can be used in soups as a thickening agent. Also, the flowers vibrantly fluoresce under ultraviolet light!
This is another image created with the iPhone 15 Pro Max paired with the Moment 75mm Macro lens. It’s a wonderful combination for macro explorations with your mobile phone, albeit not the only option. There are plenty of very high-quality add-on macro lenses on the market, just as well as there are plentiful garbage options. This just happens to be the one that works well for me. Coupled to the main camera, we’re capable of generating 48MP RAW files which give us a lot of flexibility in post-processing.
One thing that is always true of macro photography, whether it be with a traditional camera or with a mobile phone, is that the closer you get to your subject, the shallower your depth of field becomes. With resolution pushing close to 50 megapixels, you can sacrifice some of the resolution for increased depth of your in-focus details. Shoot a little farther away knowing that you can crop afterwards. These flowers have volume, they are not flat. If I have the center stamens in focus, the rest of the center of the flower will be out of focus, with focus returning to portions of the petals. It is only a thin slice of detail we’re able to capture, and precise focusing is helpful. To that end, I use the Halide app which offers manual focus control with “focus peaking”, allowing me to precisely tell where the greatest details will be in the frame.
I also find it helpful to use a Bluetooth remote trigger, any model will do. Keeping the camera as stable as possible is key, which includes not actively touching it to trigger the capture. If you have to do so, use a three-second or ten-second timer to let things settle down. I’d rather not take this approach if it can be avoided, since a plucked flower under intense UV light will start to fade quickly, and it will begin to move slightly in that process. Faster is better. Holding the camera in place is a Platypod Grip, which is by far the best phone holder for photographic purposes I have used; it’s worth the minor investment.
Photographic flowers in ultraviolet light can be transformative. You need a clean source of UV light that doesn’t spill over into the visible spectrum, and my go-to lights are the Convoy S2+. You can find them from many vendors, but make sure that you cannot see the diode in the front – there should be an opaque black piece of glass present, which is likely a ZWB2 filter. Without getting into the weeds (pun intended) about it, this helps remove any spill-off into the violet and blue colours. Our goal is to illuminate the subject only with light that we cannot see. I often use more than one flashlight for these images, which evens things out and speeds up the exposure time.
To understand what’s happening: the camera is nothing special, no modifications; you’re capturing visible light. However, the light source originates at higher-energy (shorter) wavelengths that the camera cannot detect. When this higher-energy light hits the subject, it excites electrons in specific atoms and raises them to a higher orbit. Then, almost instantaneously, they decay back to their original orbit and emit energy. However, something was lost in that process – the electrons moved, that takes energy. The emitted light therefore has lower energy, pushing it from the ultraviolet spectrum into the visible spectrum. The more the electrons were excited, the more energy is lost, and the deeper into the visible wavelengths the resulting light will become. That’s what we call the “Stokes Shift”. Science!
To see the original image, here’s a link: donkom.ca/bts/IMG_5224.jpg . Note that in the fluorescent version, there are blue veins running through the petals which are mostly invisible in the “regular” image. It almost feels like the plant/flower has a circulatory system, and that’s because… it does! Not quite like ours, and “circulatory” takes on a different meaning here, but there’s a lot going on in a flower. Coupled with the often-lobed ends to the petals and the stamens symbolizing a heart, the image gets the name “Heart of the Mallow”.
