Welcome

I am Rod Wynne-Powell, and this is my way to pass on snippets either of a technical nature, or related to what I am currently doing or hope to be doing in the near future.

A third-person description follows:
Professional photographer, Lightroom and Photoshop Workflow trainer, Consultant, digital image retoucher, author, and tech-editor for Martin Evening's many 'Photoshop for Photographers' books.

For over twenty years, Rod has had a client list of large and small companies, which reads like the ‘who’s who’ of the imaging, advertising and software industries. He has a background in Commercial/Industrial Photography, was Sales Manager for a leading London-based colour laboratory and has trained many digital photographers on a one-to-one basis, in the UK and Europe.
Still a pre-release tester for Adobe in the US, for Photoshop, he is also very much involved in the taking of a wide range of photographs, as can be seen in the galleries.

See his broad range of training and creative services, available NOW. Take advantage of them and ensure an unfair advantage over your competitors…


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Showing posts with label Sigma 2x Converter. Show all posts
Showing posts with label Sigma 2x Converter. Show all posts

Thursday, 12 September 2019

Pre-Goodwood EOS R Test of Lighter Long Lens

The Goodwood Revival comes around again, and although I wanted to capture some of its spirit with a long lens on the EOS R body, I knew that all-day with my heavy Benbo and the Sigma 60-600mm was simply out of the question, so my plan to choose the Tamron 150-600mm with the 2x Sigma Converter was worth considering, but I needed a test to make up my mind. There was a reasonable breeze blowing, so to test both the lens and lightweight Carbon Fibre tripod was worth the short trip to the lake at Brogborough. I was fortunate that despite it being a weekday, there was a single windsurfer on the water to provide me with a moving target.
I learned that my presumptions of the suitability of this combo were accurate, but I also learned that with this Converter and the closeness to the shore favoured by my unsuspecting model, meant that the lens was being mainly used at the middle of the focal length range, so it would be sensible to take the lower strength 1.5 Converter along as well, since I would be missing the 60mm end of the Sigma.

I am glad that I had run the test, because also another feature of the Revival Meeting was the aerial display of aircraft, and my lighter lens made this far less of a strain, and this short trip has given me the confidence to opt for this lens alongside my general purpose 24-70mm. I wonder whether the sobriquet ‘Glorious’ Goodwood will apply to the weather on this occasion?

Saturday, 17 August 2019

Life in my Marston Moretaine Garden

It would seem my Buddliea took longer to arrive this year than in earlier seasons, and perhaps, it knew this was a strong likelihood, so delayed producing its bloom, because within days of flowering and attracting pollinators; bees and butterflies, the British Weather gave us an extended period of high winds, and to a lesser degree, rain.
I took advantage of the arrival of mainly a handful of butterflies, and to a lesser degree bees, to take my camera out with the Canon 70-200mm lens and the Sigma 2x Extender, and did my best to capture their efforts to feed on the rich nectar they sought. There were periods during which I had to patiently await a lull in the gusty wind that was battering my plum tree and Buddliea ferociously – I had already lost two dozen plums before they had ripened, and this number rose still higher, despite my earlier efforts to try to lessen the amount of movement the branches were accorded, by tying them to a large clay pottery flower pot.
The three Butterfly species I see most are the Small Tortoiseshell, Red Admiral and Cabbage White.The butterfly’s response to the wind was to lay their wings as flat as possible against the leaves to weather the gusts, then in the few lulls get back to  delving into the florets. From my point of view, I was trying to get the most possible use of the loaned 2x Converter to help me decide whether to make the purchase. I was certainly finding that overall the issue that gave me greatest concern was how efficient autofocus would be when using the Converter.
The heartening result overall, was with the EOS R, although I would still often have to obtain initial focus manually, once I was close, the camera took over and locked on with ease. By the end of the afternoon I was convinced, and contacted Sigma to send me the invoice, as there was no need for me to return it!
Although at first sight, there may seem numerous duplicates within the gallery, there are subtle differences, and I was trying to see just how well the focus was maintained, and considering the amount of movement I was involved in trying to keep track, the camera was definitely less troubled, and I was able to recompose the images easily in post processing, especially when I was particularly pleased with some of the shapes formed by the leaves that allowed me to create good compositions, What that meant was that invariably the overall crop whilst taking was not tight, despite the greater enlargement, the quality of the mirrorless body’s files was still excellent, which has been a real benefit.
Readers of this blog will have noted how I have had to adapt my way of shooting, especially when panning, to accommodate to some of the different characteristics involved between my dSLR bodies such as the 7D MkII and 5D MkIII. Canon remain tight-lipped over my suggestions, with this issue, but admit I am not alone in suggesting a modification to the way in which bursts are handled by this camera to lessen the impact of the lag between the image in the viewfinder when a panning sequence is shot. The expensive but obvious alteration would be to have two parallel processors; one for Viewing, one for Capture, my suggestion however was to mitigate the effect by discontinuous sampling of the signal reaching the Viewfinder, as in my humble opinion this could be achieved by a separate setting for panning operations. Time will tell. The technique involved would not be too dissimilar from image stabilisation, and could be linked to the difference in inertia involved in the camera’s motion.