Tag: SPP 6.3

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Comparing the Sigma Photo Pro 6.3 vs. 6.3.2

I read in the dpreview forum that even pictures which were taken with older firmware-versions, will benefit from the more accurate automatic white balance and the more realistic colour rendering of Sigma Photo Pro 6.3.2. To see for myself, I developed six pictures that I took with my DP2 Quattro with SPP 6.3 and 6.3.2. ...

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Foveon workflow: Blue Channel trick for Quattro cameras by using X3F Tools?

Since the blue channel trick doesn’t work with Quattro X3Fs, I tried to find out last week if there’s an alternative to SPP and that particular workflow. Just as a reminder: The blue channel trick is a workflow in SPP used for the conversion of Marrill X3F into black-and-white in order to reduce noise. This ...

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Foveon workflow: Looking for the Blue Channel trick for Quattro cameras

The “blue channel trick“ is a workflow in Sigma Photo Pro (SPP) that clearly increases the usable sensitivity range of Merrill Foveon sensors. The “trick” is actually not a trick as you use the tools that are included in SPP anyway and that you can find easily. The only thing you’ve got to do is ...

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SPP vs. X3F Tools: Noise and noise reduction (part 2)

After analyzing the noise of the Merrill sensor and noise reduction in SPP 6.3 and X3F Tools, I’ve taken a closer look at the X3Fs of the Quattro sensor. For this I’ve taken 7 X3Fs with the DP2 Quattro, with sensitivities ranging from ISO100 to ISO6400, and developed and converted them to DNG format with ...

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SPP vs. X3F Tools: Noise and noise reduction (part 1)

I didn’t even notice how much SPP “pimps up” the X3Fs before I started to experiment with the X3F Tools converter which doesn’t know the many particularities of Foveon sensors and the many tricks in X3F image editing. Since it is too many insights that I could gain by comparing both converters, I’ve decided to ...

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SPP 6.3 vs. X3F Tools (Kalpanika): coloured vignetting and noise performance

Yesterday I uploaded a couple of photos which I had taken with the DP2 Quattro as X3Fs, then converted into the DNG format with X3F Tools (Kalpanika), and edited in Lightroom 5.7. Most of these photos are nothing out of the ordinary, but in two shots, taken only seconds apart, it is possible to see ...

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New photos taken with the DP2 and more insights into the Kalpanika alias X3F Tools

If you have never heard about Kalpanika, aka the X3F Tools, then you should have a go at this blog entry. In short, it is a X3F to DNG converter with excellent noise reduction, but at the moment there is still a long row to hoe. One of the current issues is the “Italian Flag” ...

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SPP 6.2.1 vs 6.3: is it possible to tease out more sharpness of the X3Fs with the newest version?

I was curious when Sigma launched SPP 6.3 and the change log claimed that the algorithm had been improved to make the Quattro X3Fs even sharper. Since optimising the RAW converter usually only improves the image quality a tiny bit, I was not expecting to see a huge difference when comparing 6.3 and 6.2.1. I ...

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Sigma News & Rumours: Sigma introduces the 24-35mm f/2 Art lens and launches SPP 6.3!

The rumours that came up yesterday where true – today Sigma introduced the 24-35mm f/2 DG HSM Art! For us users of the APS-C format the zoom is less interesting, since the already available 18-35mm f/1.8 DC HSM Art already covers a wider zoom range and is faster by 1/3 of an aperture stop. As ...