Tag: DoF

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105mm f0.75: too ‘bokehlicious’ to be true?

During a recent web session I stumbled across this article on Petapixel, about photographer Jason Ahrns and the curious 105mm f/0.75 lens made by Dutch optics manufacturer “De Oude Delft”. When researching polar lights for his dissertation, Ahrns discovered that lens in one of the storage cabinets of the research group he is working with. ...

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Taking a Walk with the 30mm f/1.4 ART

I have been meaning to take a walk with this new toy of mine several days ago, but in this heat you feel like a fish out of the water. The last thing you want to think about is taking pictures. Late afternoon, I was able to prompt myself to do it. In the middle ...

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The Battle of the 30s: Sigma 30mm f1.4 EX vs 30mm f1.4 ART Part 1

50mm (full frame equivalent) fixed focal lengths are counted among the lenses with the widest field of application. It comes as no surprise, then, that both 30mm f/1.4 Sigmas are repeatedly mentioned in threads focusing on purchase advice. Before the appearance of the 30mm ART, the selection was somewhat more transparent. You could either opt ...

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Photography basics – part 7 – ways to achieve nice bokeh

Following megapixels, which every modern camera is equipped with in abundance nowadays, background blur, also known as bokeh, is currently on everyone’s lips. People talk of shallow depth of field (DoF) and of how large aperture resembles engine size/cubic capacity – in other words something you can never get enough of – and how you ...

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Bokeh-overdose with the Sigma 30mm f1.4

Just recently, I came across some pictures that were shot wide open in daylight. The combination of bokeh and direct sunlight instantly fascinated me. I absolutely needed to simulate the effect. Taking photos in bright light with f1.4 is easier said than done. Even with the SD1, which can go as low as ISO100 and ...