Doherty
4 members found (show all)
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Catherine Doherty
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Cain Doherty
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Marylou Doherty
Australia
15 creative works found
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Photographing the Milky Way with a standard DSLR camera
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Tutorial: Layer Masks and Transparency Gradients for "The Heart"
by Cain DohertyI have an improved and better formatted version of this tutorial in my wordpress blog....
I have an improved and better formatted version of this tutorial in my wordpress blog. This tutorial will cover digital blending in Photoshop CS3 using layer masks and transparency gradients. It is aimed at those who are interested in seeking alternatives to HDR (High Dynamic Range) processing. I would consider the usage of these techniques as digital graduated neutral density filters and although it can take some time to implement, I find the benefits to be: Preservation of intended colour and tone Complete control over contrast gradients Elimination of halo effects Elimination of fringing I will use one of my photographs, The Heart, to illustrate the method. 1. Download this zipped folder containing the two images to be used for blending and open IMG_1166 in Photoshop. 2. Press Ctrl+Shift+N and click OK to add a new layer. To place IMG_1164 on this layer go to File > Place and find where you saved it. Click the tick to commit the transform. 3. To create a mask, click the New Layer Mask (grey square with white circle inside) button in the Layers palette. To create a transparency gradient on this mask, first hit G to bring up the gradient toolbar and select a linear gradient. Then click and drag as shown in the following picture. 4. The next layer will be a photo filter so click Layer > New Adjustment Layer > Photo Filter and hit OK. Push the density slider to 100% and select a custom colour with properties as shown in the following picture. 5. Now apply another layer mask and gradient, as done previously, to restrict the photo filter to the sky. Change the blend mode to Linear Burn and opacity to 70% for the following picture. The Linear Burn blend mode is similar to Color Burn, but instead of increasing contrast, it decreases brightness to darken the base color and reflect the blend color. Now add curves layers to the foreground and then the sky. 6. Click Layer > New Adjustment Layer > Curves and hit OK. Then modify each of the RGB channels to reflect something like the following picture. 7. Change the blend mode to soft light and add a layer mask and gradient (this time in reverse) to restrict the curves layer to the foreground. This will produce the following result. The curves layer that targets the sky looks like this. 8. Change the blend mode again to soft light, opacity to 75% and create a layer mask and gradient to achieve the following result. 9. The final step involves adding a levels layer and changing its blend mode to ‘screen’ to boost the lighter areas. An opacity of 90% will achieve the picture shown below. 10. Straightening the horizon and correcting the barrel distortion yields The Heart. If you’ve found this useful please let me know. Feedback and discussion is welcome. If you haven’t done so already, please check out one of my other tutorials Photographing the Milky Way with a standard DSLR camera Cain Doherty
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O’Doherty’s Keep, Buncrana, County Donegal, Ireland One of six castles built in the early 15th century by the important Clan O’Doherty (O Dochartaigh), the Keep stands at one end of Castle Bridge, Buncrana. The Castle was burned in the early 17th century, but the walls survived, and remain standing to this day. For more information about O’Doherty’s Keep and the Clan, go here Nikon D50 50mm f1.8 lens. HDR and orange toning. / /
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Tutorial: Photographing the Milky Way with a standard DSLR camera
by Cain DohertyI have an improved and better formatted version of this tutorial in my wordpress blog....
I have an improved and better formatted version of this tutorial in my wordpress blog. This tutorial will cover the development of my image Milky Way from Apollo Bay using a Canon 350D, a wide angle lens, Adobe Photoshop and an image alignment program called hugin. For this to be repeatable you must be shooting with clear dark skies, free from light pollution. I used settings of Tv: 20 sec, Av: f/4, focal length: 17mm and ISO speed: 1600. A shutter release cable is also a great tool and can keep your camera clicking as it sits on the tripod. The more images taken, the better for the final result, because this will improve the signal to noise ratio that plagues digital sensors during long exposures. A tracking mount is not necessary with a 20 second shutter speed because the rotation of the night sky is undetectable at such a wide angle. Please read the following steps for more information. All images are hyperlinked to larger sizes. 1) Download this zipped folder containing four of my unaligned shots of the Milky Way. 2) Load them into hugin_0.7_beta_4. 3) Manually align images with control points – don’t automatically align. I aligned three images to a common one. Enlarge the screenshot for details. 4) Click Edit – fine tune all points. 5) Click View – preview window. 6) Click Center and Fit buttons to achieve this view. 7) Click Edit – Optimise. 8) Click Stitcher – image format – multiple tiff . Final screen before clicking Stitch Now . 9) If you don’t want to worry about learning how to align the images with hugin, then you can download this zipped folder containing the four prealigned images of the Milky Way. 10) Load each image onto a new layer in photoshop adjusting the blend mode to screen which is good at lightening images without lightening the darkest areas. 11) Add a medium contrast curves layer. 12) Add colour balance layer: shadows (-90,-25,-10), midtones (-15,-5,-20), highlights (0,-5,30). 13) The final result For comparison’s sake, shown below is a typical accompanying jpeg to a raw file I began with for one of the individual images. I used Adobe Camera Raw to extract the jpegs provided in step 1 for processing. In closing, I’d like to point out this is not the only way an image like this can be captured; there is myriads of possibilities. I have developed this simple and inexpensive method by just experimenting with the tools at my disposal. Comments are welcomed. If you haven’t done so already, please check out another tutorial I have written: Layer Masks and Transparency Gradients for The Heart.
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Shot from British rock star Pete Doherty in Lyon / France (February 2008).
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taken during the filming of tv programme.
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Transmission tv programme filming at film city glasgow… taken from the balcony.
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A selection of live music photography shot at various gig’s and festivals during 2008.
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Tony Doherty in action during the 2007 National League 2 Season in the Gateshead Thunder v Blackpool Panthers game at the Thunderdome on Saturday 7 July 2007
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Original paintings of Australian Landscapes and birds.
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i’m not sure about the dimensions of this one but its a really small portrait :)
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The Soap Bubble - Episode 8. The first on the list
by Andrew WalkerGet the girl, kill the baddies save the Bubble, and back in time for tea and medals! hurrah
What if there was more to Red Bubble than just a website
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Pete
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Abstract Favourites
by Erica CorrI have quite a few delicious abstracts (or, well, images which I perceive to have an abstract quality to them) in my favourites list and…
I have quite a few delicious abstracts (or, well, images which I perceive to have an abstract quality to them) in my favourites list and so shall share a few for those who might have missed them in their travels: Accidental Fractal by Cathleen Tarawhiti …Like a beautiful phoenix or a golden bowerbird. The Wave by gypsygirl …Reminds me of guitar strings… EGG84 by TheEggman …So many beautiful egg-shaped abstracts here. The Elements by ch3rrybl0ss0m …Lovely colours! Untitled by Catherine Doherty Protest by Michael Kienhuis ink by kathleen …Lovely shiny blobs of ink a feature! Stairway to Heaven by marieancolie The Secret by Jacqueline Haberer White Bubbles by micmac Untitled by David Librach Dream Scraps by mawaho Ridged by Paul Bradley Untitled by Morten Bentzon … Reduces a beach to bands of colour and creates something new Thanks to all those artists who’ve given me so much visual pleasure and inspiration! Not all of you labelled your work as “abstract” and maybe not all of the examples in my list fit the strict definition. So it’s pretty subjective, is what I’m trying to say! My idea of abstract…sorry if it offends! Please Bubblemail me, if necessary!
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