Tag: Sigma DP2 Quattro

S

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 ...

I

Is the heat getting to you as well?

Since this heat has really been getting to me recently, I have only gone taking pictures rather sporadically. In the last weeks it was too hot and too muggy, even late in the afternoon, to go on longer photo tours. It wasn’t even a whole lot of fun when I was just taking the DP3M ...

S

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 ...

N

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” ...

X

X3F Tools: a cumbersome but very effective X3F-to-DNG converter

The X3F-to-DNG converter which was developed under the codename “Kalpanika” has now been released as “X3F Tools 0.53”. As far as I understood it, it was originally planned to make Kalpanika into a full-fledged RAW converter. This task was now abandoned as, according to the four-men-strong programming-team, there was no way to get rich with ...

S

Sigma News & Rumours: new firmware versions for DP1Q, DP2Q and DP3Q, and first 24-35mm f2 Art sample images published!

A few days ago, Sigma published firmware updates for the DP Quattro series. As can be seen in the change log below, this time around the focus was on the speed of the auto focus and on the compatibility with Eye-Fi memory cards. Since I was still on holiday when the news where published and ...

B

Badly equiped…

Last Friday I went on two photo-walks. Since I had not planned to photograph any special motifs, I brought the DP2 Quattro for the first round. You can see the photos I took below. When it was time to go home, I decided to take the path following the river to cool down a little. ...

S

Several oddities

During my last photo walk I’ve tried to capture a large spectrum of photo subjects. Of course, cats are also among them, however, I’ve made an effort to find and capture a number of oddities, which you might find interesting. What you see in the following photo is a Serbian obituary. To answer the question ...

H

Have you heard of ‘superresolution’?

“Superresolution” is a relatively new concept, which can be used to increase the resolution of an optical system beyond the capabilities of the hardware. While this concept is not only used in photography, there are two (groups of) methods which one can use to either reduce noise - whereby the degree of detail per pixel, ...

S

Sigma news and rumours: SPP 6.2.1 and firmware-updates for the DP1Q and DP2Q are now available!

During a talk two weeks ago, the owner and CEO of Sigma, Kazuto Yamaki, said that a new SPP version and firmware updates for the DPQs would be released. These updates, which increase the quality of the pictures and speed up the AF are now available for download. Since I do not dispose of any ...