publications

Simple High Performance Computing

Podstawy elektroniki i budowa komputera w symulatorze “Jest to pierwsza część serii Simple High Performance Computing o tytule Podstawy elektroniki i budowa komputera w symulatorze. Swoim zakresem obejmuje zagadnienia związane z elektroniką, a konkretnie jej podstawami, począwszy od pierwotnych zasad fizyki przekładających się na komponenty elektroniczne, z których można budować złożone układy, a finalnie najprostszą obliczeniową maszynę cyfrową. Największy nacisk kładę na praktyczną część zagadnienia, aczkolwiek teoria również jest przedstawiana.“

photography

How to import files into darktable

If you try using darktable 3.6 and previously been using older versions then you may be confused. In lighttable, import pane there are two buttons instead of one. Below you can find a little explanation. 1. Add to library By selecting “add to library” you just collect selected pictures instead of physically copying them. Be sure to check settings, storage, xmp, “write sidecar file each image”. For long time I used this setting to write these xmp files, but recently I decided to skip that option. That way the only option to move around picture with its processing settings is

photography

RAW processing with darktable 3.6

If you shoot RAW then most probably you need to have dedicated software for processing such files. I use darktable, however it is worth to mention that Windows Explorer and built-in image viewer can display RAW image. Just in case there is no other software available at the moment. Still if you need to edit RAW files and not only browse them then you should try darktable. It is open source, free of charge, available for Windows and Linux. First of all it is great picture browser. You add or copy your files, both from local and remote drives. In

photography

YN50/1.8 vs Nikkor 35-70 3.3/4.5 – sharpness comparison

I started wondering if cheap YN lens can be compared with with some cheap Nikkor lens. Yes it can. I shoot same lens cap with Nikon D200 with these two lenses with are Yongnuo 50mm/f1.8 and Nikkor 35 – 70mm f3.3/4.5. I think that comparing fixed lens with zoom lens might be weird, but originally I though that even with zoom, Nikkor should be better. I was wrong. If anyone is not convinced why should you buy fixed-focus prime lens below you have practical explanation. The reason why I even bother to compare them at such a level is that

photography

Nikon D7100 vs D200

Some time ago I got rid of my D200. But now I have another one in excellent shape. In the past I upgrade from it to D7100 which is better in terms of resolution, sharpness and features. But there are some differences like image plasticity and color vibrance which make D200 still a very good camera. If shooting low light then D7100 wins for sure because of wider dynamic range, but if lighing is fine and you need not to crop pictures then go with other cameras like D200 or D70s. They work very well and produces fine images.

publications

Poradnik dla miłośników roślin – to nie jest takie trudne

“Był początek lat dziewięćdziesiątych, kiedy przed moim mężem pojawiła się szansa otrzymania działki pracowniczej. Co prawda na razie było to wysypisko śmieci na obrzeżach istniejącego kilkanaście lat Ogrodu. Czekała nas przeogromna praca. Nasze dzieci mówiły na ten kawałek ziemi „Kambodża”. Musieliśmy wywieźć sterty śmieci, złomu i szkła…” – Ridero. 2019 (ISBN 9788381893862).

publications

Ruby on Rails – ćwiczenia

“Dzięki książce “Ruby on Rails. Ćwiczenia” opanujesz podstawy tworzenia aplikacji internetowych za pomocą tej technologii. Nauczysz się programować w języku Ruby: poznasz jego elementy i zasady projektowania obiektowego, metody przetwarzania danych tekstowych, pracy z plikami i katalogami oraz obsługi błędów i wyjątków. Przeczytasz także o środowisku Rails, instalowanym na serwerze aplikacji. Wykonując ćwiczenia z ostatnich rozdziałów, zrealizujesz projekt aplikacji służącej do zarządzania czasem w technice Ruby on Rails.” – Helion, 2006

photography

NIKON D7100, Yongnuo 50/1.8

It is a 24 megapixels digital SR camera. Sadly to say that I do not use this maximum resolution, because files are just too big. I even skipped using NEF raw files they are just enourmously huge for me. You can choose between 6 MP, 16MP and 24MP. I take pictures at 6 MP and select 24 MP only shooting far objects with telephoto zoom lens in order to be able to crop it. This camera has lot of pro features. It can take pictures quite fast, I think something like 4 frames per second. It is just my perception,

photography

Adapting SMENA 8M lens to NIKON F

As previously stated, I tried to adapt SMENA 8M 40mm, f/4.0 lens to some DSLR. After week with no camera at all today I got my almost brand new NIKON D70s with only 1k pictures taken. I took NIKON F mount ring from some broken SOLIGOR lens and glued it to SMENA lens. Of course because of registration plane (flange) distance I cannot get proper focus but still can do some tests, which you can find below. I find it pretty good looking. In order to get out of some 30cm area I would need to have entirely different camera

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