online since 1994 https://heikkisiltala.net/wiki/ 2026-05-27T13:35:24+00:00 https://heikkisiltala.net/wiki/ https://heikkisiltala.net/wiki/_media/wiki/logo.png text/html 2023-02-22T22:37:31+00:00 Anonymous (anonymous@undisclosed.example.com) https://heikkisiltala.net/wiki/en/photography/compact_cameras/nytech_nd_4020?rev=1677105451&do=diff Nytech ND-4020 This review and in-depth description was created 2004 - 2007. The latest update was done in July 2015. See for more details. See some photos shot with Nytech ND-4020! Nytech ND-4020 was my first digital camera. I purchased it June 2004 and used it very actively for three months. During that time I shot about 5 000 photos with it. The enthusiasm of photography spread like a fire and so the camera got replaced with text/html 2023-02-22T22:37:31+00:00 Anonymous (anonymous@undisclosed.example.com) https://heikkisiltala.net/wiki/en/photography/compact_cameras/fujifilm_x_s1?rev=1677105451&do=diff Fujifilm X-S1 This Fujifilm X-S1 review was initially created May 2013 and was last updated September 2015. My general rating: recommended for those who need all-in-one camera with good ergonomics. * General photos shot with Fujifilm X-S1 * Naisten Kymppi 25.5.2014 with Fujifilm X-S1 * Roosters - Butchers 6.9.2014 with Fujifilm X-S1 Pros * Nice all-in-one camera for walkaarounds, trips and holidays. text/html 2026-04-10T06:13:21+00:00 Anonymous (anonymous@undisclosed.example.com) https://heikkisiltala.net/wiki/en/photography/photos/20150717_gymnaestrada_fig_gala/s4?rev=1775801601&do=diff Gymnaestrada 2015: FIG Gala, page 4 Page 4 17.7.2015 Helsinki, Panasonic Lumix LX-7 · 116 photos · Vaihda kieli suomeksi Page 3<<<<<< · Here are the last photos [Canada · Gymnaestrada 2015: FIG Gala · photo 91] [Canada · Gymnaestrada 2015: FIG Gala · photo 92] [Canada · Gymnaestrada 2015: FIG Gala · photo 93] [Canada · Gymnaestrada 2015: FIG Gala · photo 94] [Canada · Gymnaestrada 2015: FIG Gala · photo 95] [Canada · Gymnaestrada 2015: FIG Gala · photo 96] [Austria · Gymnaestrada 2015: FIG … text/html 2026-04-11T22:25:21+00:00 Anonymous (anonymous@undisclosed.example.com) https://heikkisiltala.net/wiki/en/music/music_collection/d?rev=1775946321&do=diff Music: D A part of my music collection listing. Listing updated 2026-04-10. Music: C<<<<<< Music: E>>>>>> Artist Album Format Date Origin DGM Change Direction CD 18.8.2001 Veljekset Keskinen Tuuri DJ 2000 Häkkinen on ykkönen SD 1/2002 Anttila Asematunneli Helsinki DJ Bobo text/html 2026-04-11T22:25:21+00:00 Anonymous (anonymous@undisclosed.example.com) https://heikkisiltala.net/wiki/en/music/music_collection/s?rev=1775946321&do=diff Music: S A part of my music collection listing. Listing updated 2026-04-10. Music: R<<<<<< Music: T>>>>>> Artist Album Format Date Origin S.I.B. vs The Tokens Feat. Jay Siegel The Lion Sleeps Tonight SD 1/2002 Anttila Asematunneli Helsinki Sabaton Carolus Rex CD 8/2012 Veljekset Keskinen Tuuri text/html 2023-02-22T22:37:31+00:00 Anonymous (anonymous@undisclosed.example.com) https://heikkisiltala.net/wiki/en/photography/camera_lenses/sigma_70_300mm_apo_macro_super_ii?rev=1677105451&do=diff Sigma 70-300mm f/4.0-5.6 APO Macro Super II Review of Sigma 70-300mm f/4-5.6 APO Macro Super II telephoto zoom lens. Review created 2006, latest update 2013. catza.net photos: Sigma 70-300mm f/4-5.6 APO Macro Super II Facts * cheap but decent quality tele zoom for amateurs * estimated retail price 250 EUR text/html 2024-02-19T04:03:51+00:00 Anonymous (anonymous@undisclosed.example.com) https://heikkisiltala.net/wiki/en/information_technology/perl2python?rev=1708315431&do=diff Moving from Perl to Python Created 2021-04-27. Latest update 2024-02-19. The need for a general purpose programming language The programming languages that I've previously used include Java, JavaScript, PL/SQL, Ruby, Perl, C, C++, PHP, Pascal, Visual Basic, Lisp and Fortran (at least). text/html 2026-04-11T22:25:21+00:00 Anonymous (anonymous@undisclosed.example.com) https://heikkisiltala.net/wiki/en/music/music_collection/e?rev=1775946321&do=diff Music: E A part of my music collection listing. Listing updated 2026-04-10. Music: D<<<<<< Music: F>>>>>> Artist Album Format Date Origin Earl Slick In your face CD 10/2001 Ariman webstore Echo Hollow Diet of Worms ED Little Rose webstore Edenbridge Aphelion CD 8/2003 text/html 2026-04-10T06:13:25+00:00 Anonymous (anonymous@undisclosed.example.com) https://heikkisiltala.net/wiki/en/photography/photos/1998_2001_keimola_motor_stadium/1?rev=1775801605&do=diff Photo 1: The south end The south end of the track (1998-09-05) First photo · Photo 2: Curt Lincoln 1972>>>>>> Keimola Motor Stadium · Full size · Vaihda kieli suomeksi [The south end] First photo · Photo 2: Curt Lincoln 1972>>>>>> Keimola Motor Stadium · Full size · Vaihda kieli suomeksi text/html 2023-02-23T23:54:49+00:00 Anonymous (anonymous@undisclosed.example.com) https://heikkisiltala.net/wiki/en/information_technology/the_zeus_malware_incident?rev=1677196489&do=diff The ZeuS malware incident This report was written in 2014, latest update 2017-10-22. Summary in Finnish. My Windows 7 desktop computer was hit by ZeuS malware or some variant of it. It wasn't detected by virus scanners and so it lived on the computer at least over a month, maybe much longer. Here is the full story. text/html 2023-02-26T17:32:10+00:00 Anonymous (anonymous@undisclosed.example.com) https://heikkisiltala.net/wiki/en/information_technology/catz/system_description?rev=1677432730&do=diff About the design and implementation of Catz Written in 2011 so may contain outdated information. The key attributes * The service is stateless: the HTTP GET request's URL identifies the resource requested. There are no cookies nor sessions. * The public access is dynamic but read only. All data is loaded offline by a loader sumsystem. text/html 2026-04-11T22:25:21+00:00 Anonymous (anonymous@undisclosed.example.com) https://heikkisiltala.net/wiki/en/music/music_collection/h?rev=1775946321&do=diff Music: H A part of my music collection listing. Listing updated 2026-04-10. Music: G<<<<<< Music: I>>>>>> Artist Album Format Date Origin H.E.A.T Tearing Down The Walls CD 2017 EMP webstore Halcyon Way Bloody but unbowed CD 22.9.2021 EMP webstore Halford Resurrection CD text/html 2026-04-11T22:25:21+00:00 Anonymous (anonymous@undisclosed.example.com) https://heikkisiltala.net/wiki/en/music/music_collection/saviour_machine?rev=1775946321&do=diff Saviour Machine A part of my music collection listing. Listing updated 2026-04-10. An artist page is available for artists having at least 5 items in the collection. Artist Album Format Date Origin Saviour Machine Legend Part 1 CD Little Rose webstore Saviour Machine text/html 2026-04-10T06:13:26+00:00 Anonymous (anonymous@undisclosed.example.com) https://heikkisiltala.net/wiki/en/photography/photos/20150717_gymnaestrada_fig_gala/110?rev=1775801606&do=diff Photo 110: The end FIG Gala Thank You Photo 109: Austria<<<<<< Photo 111: The end>>>>>> Page 4 · Full size · Vaihda kieli suomeksi [The end] Photo 109: Austria<<<<<< Photo 111: The end>>>>>> Page 4 · Full size · Vaihda kieli suomeksi “” text/html 2026-04-10T06:13:26+00:00 Anonymous (anonymous@undisclosed.example.com) https://heikkisiltala.net/wiki/en/photography/photos/20150717_gymnaestrada_fig_gala/111?rev=1775801606&do=diff Photo 111: The end FIG Gala Thank You Photo 110: The end<<<<<< Photo 112: The end>>>>>> Page 4 · Full size · Vaihda kieli suomeksi [The end] Photo 110: The end<<<<<< Photo 112: The end>>>>>> Page 4 · Full size · Vaihda kieli suomeksi “” text/html 2026-04-10T06:13:26+00:00 Anonymous (anonymous@undisclosed.example.com) https://heikkisiltala.net/wiki/en/photography/photos/20150717_gymnaestrada_fig_gala/112?rev=1775801606&do=diff Photo 112: The end FIG Gala Thank You Photo 111: The end<<<<<< Photo 113: The end>>>>>> Page 4 · Full size · Vaihda kieli suomeksi [The end] Photo 111: The end<<<<<< Photo 113: The end>>>>>> Page 4 · Full size · Vaihda kieli suomeksi “” text/html 2026-04-10T06:13:26+00:00 Anonymous (anonymous@undisclosed.example.com) https://heikkisiltala.net/wiki/en/photography/photos/20150717_gymnaestrada_fig_gala/113?rev=1775801606&do=diff Photo 113: The end FIG Gala Thank You Photo 112: The end<<<<<< Photo 114: The end>>>>>> Page 4 · Full size · Vaihda kieli suomeksi [The end] Photo 112: The end<<<<<< Photo 114: The end>>>>>> Page 4 · Full size · Vaihda kieli suomeksi “” text/html 2026-04-10T06:13:26+00:00 Anonymous (anonymous@undisclosed.example.com) https://heikkisiltala.net/wiki/en/photography/photos/20150717_gymnaestrada_fig_gala/114?rev=1775801606&do=diff Photo 114: The end FIG Gala Thank You Photo 113: The end<<<<<< Photo 115: After the show>>>>>> Page 4 · Full size · Vaihda kieli suomeksi [The end] Photo 113: The end<<<<<< Photo 115: After the show>>>>>> Page 4 · Full size · Vaihda kieli suomeksi “” text/html 2023-10-11T17:34:08+00:00 Anonymous (anonymous@undisclosed.example.com) https://heikkisiltala.net/wiki/en/about?rev=1697045648&do=diff About this site Page last updated 2023-05-03. Luettavissa myös suomeksi. You can contact the webmaster by sending an email to info at-character heikkisiltala dot net. Background You are watching the latest incarnation of my personal website. I've been running a personal website since October 22nd 1994. The site has been running text/html 2023-02-22T22:37:31+00:00 Anonymous (anonymous@undisclosed.example.com) https://heikkisiltala.net/wiki/en/information_technology/cognos_bi?rev=1677105451&do=diff The automatic IBM Cognos BI Motto: Run your Business Intelligence, don't let your Business Intelligence run you! Written in 2013. I've been working with IBM Cognos BI (Business Intelligence) system for some years. Our application area for the BI system differs from typical application areas: we use it to provide public internet reporting and OLAP analysis tools. These are based on data extracted from our registers and other statistical data sources. text/html 2023-02-22T22:37:31+00:00 Anonymous (anonymous@undisclosed.example.com) https://heikkisiltala.net/wiki/en/information_technology/dedicated_or_virtual_server?rev=1677105451&do=diff A dedicated server or a virtual server These are my notes on choosing between Hetzner's Dedicated Server EQ 4 and Virtual Private Server VQ 19. This was written in 2011 so this may not reflect the current similarities and differences between the two server types. text/html 2023-10-11T17:51:57+00:00 Anonymous (anonymous@undisclosed.example.com) https://heikkisiltala.net/wiki/en/information_technology/mixing_static_and_dynamic?rev=1697046717&do=diff Building a website mixing static and dynamic techniques An ongoing writing process. Started 2021-07-12. Latest update 2023-10-11. From where do we start I'm a content creator, maintainer, developer and webmaster of a few websites purely as a hobby. text/html 2023-02-22T20:46:19+00:00 Anonymous (anonymous@undisclosed.example.com) https://heikkisiltala.net/wiki/en/music/alien_vanguard_waldorf_blofeld?rev=1677098779&do=diff Alien Vanguard Soundset for Waldorf Blofeld by HG Fortune and Dimitri Schkoda Written in 2014. * The soundset reviewed: Alien Vanguard Soundset for Waldorf Blofeld by HG Fortune and Dimitri Schkoda * Sounds: 256 (two Blofeld banks) * Price: 39 € including VAT text/html 2026-04-11T22:25:21+00:00 Anonymous (anonymous@undisclosed.example.com) https://heikkisiltala.net/wiki/en/music/music_collection/c?rev=1775946321&do=diff Music: C A part of my music collection listing. Listing updated 2026-04-10. Music: B<<<<<< Music: D>>>>>> Artist Album Format Date Origin Cage Astrology CD 6/2003 Veljekset Keskinen Tuuri Cage Unveiled CD 6/2003 Veljekset Keskinen Tuuri Candlemass The Best of Candlemass - As it is, as it was text/html 2026-04-11T22:25:21+00:00 Anonymous (anonymous@undisclosed.example.com) https://heikkisiltala.net/wiki/en/music/music_collection/elvis_presley?rev=1775946321&do=diff Elvis Presley A part of my music collection listing. Listing updated 2026-04-10. An artist page is available for artists having at least 5 items in the collection. Artist Album Format Date Origin Elvis Presley 30 #1 hits CD 27.11.2024 Levykauppa Äx Elvis Presley text/html 2026-04-11T22:25:21+00:00 Anonymous (anonymous@undisclosed.example.com) https://heikkisiltala.net/wiki/en/music/music_collection/r?rev=1775946321&do=diff Music: R A part of my music collection listing. Listing updated 2026-04-10. Music: Q<<<<<< Music: S>>>>>> Artist Album Format Date Origin Rage End Of All Days CD 11/2001 Black and White Hakaniemi Helsinki Rage Execution Quaranteed CD Veljekset Keskinen Tuuri Rage Reign of Fear text/html 2026-04-11T22:25:21+00:00 Anonymous (anonymous@undisclosed.example.com) https://heikkisiltala.net/wiki/en/music/music_collection/y?rev=1775946321&do=diff Music: Y A part of my music collection listing. Listing updated 2026-04-10. Music: X<<<<<< Music: Z>>>>>> Artist Album Format Date Origin YLE Radioteatteri Knalli ja sateenvarjo 12 (Paljastuksia puistossa, Kemiallista sodankäyntiä) CD YLE Radioteatteri Knalli ja sateenvarjo 14 (Ilmojen valtiaat, Crum-joen silta) text/html 2023-02-22T22:33:30+00:00 Anonymous (anonymous@undisclosed.example.com) https://heikkisiltala.net/wiki/en/photography/camera_bodies/canon_eos_40d?rev=1677105210&do=diff Canon EOS 40D Review created 2007, latest update 2009. catza.net photos: Canon EOS 40D Canon EOS 40D was my primary camera body from October 2007 to October 2009. It was a very good camera for my use. Changing from Canon 20D to 40D was partially an accident. I had a friend who needed a camera body at the same time when I was thinking whether to go with 20D for a year or so or to start looking for an upgrade. When the possiblity opened I decided to sell the 20D and then needed a replacement. T… text/html 2023-02-22T22:37:31+00:00 Anonymous (anonymous@undisclosed.example.com) https://heikkisiltala.net/wiki/en/photography/camera_lenses/canon_ef_70_200mm_l_is_usm?rev=1677105451&do=diff Canon EF 70-200mm f/2.8 L IS USM Review of Canon EF 70-200mm f/2.8 L IS USM zoom lens. Review created 2008, latest update 2013. catza.net photos: Canon EF 70-200mm f/2.8 L IS USM Facts * a lens that many dream about * estimated retail price 2000 EUR * in my use from 6/2008 to 11/2008 * I still have mixed feelings about this lens: you don't really know how it fits to your style of shooting until you try it text/html 2023-02-22T22:37:31+00:00 Anonymous (anonymous@undisclosed.example.com) https://heikkisiltala.net/wiki/en/photography/camera_lenses/mc_rubinar_500mm_reflex?rev=1677105451&do=diff MC Rubinar 500mm f/8 Reflex Review of MC Rubinar 500mm f/8 Reflex lens. Review created 2006, latest update 2013. Facts * an all-manual mirror lens (also known as reflex lens, catadioptric lens, CAT) * in addition to this there appears to be 500 mm f/5.6 and 1000 mm f/10 CATs available text/html 2023-02-22T22:37:31+00:00 Anonymous (anonymous@undisclosed.example.com) https://heikkisiltala.net/wiki/en/photography/camera_lenses/tamron_sp_70_300mm_di_vc_usd?rev=1677105451&do=diff Tamron SP 70-300mm f/4.0-5.6 Di VC USD Review of Tamron SP 70-300mm f/4.0-5.6 Di VC USD telephoto zoom lens. Review created 2014. Sport photos shot with Tamron Facts * very usable telephoto zoom lens for outdoor use when there is plenty of light * in my use from 6/2014 to current date text/html 2023-02-22T06:32:41+00:00 Anonymous (anonymous@undisclosed.example.com) https://heikkisiltala.net/wiki/en/photography/camera_stuff/cameras_lenses_and_else?rev=1677047561&do=diff Camera and lenses are not all you need Written in 2005, latest update 2010. If you are into serious photography, the first things you need are a camera body and one or more lenses. But in addition to these there are many things that are needed or come handy. Here are non-conclusive lists of things that I use or have used. text/html 2023-02-22T22:37:31+00:00 Anonymous (anonymous@undisclosed.example.com) https://heikkisiltala.net/wiki/en/photography/compact_cameras/panasonic_lumix_dmc_lx7?rev=1677105451&do=diff Panasonic Lumix DMC-LX7 Review created 2013, latest update 2014. catza.net photos: Panasonic Lumix DMC-LX7 I have been using Ricoh GR for a while but found that there are sometimes cases where the fixed 28 mm focal length is too limiting. I also had noticed that having an APS-C sensor the Ricoh gives aesthetic results resembling to a DSLR. I sometimes prefer a small-sensor aesthetic results. These are the main reasons why I decided to get Panasonic Lumix DMC-LX7. The LX7 was a very natural ch… text/html 2026-04-10T06:13:25+00:00 Anonymous (anonymous@undisclosed.example.com) https://heikkisiltala.net/wiki/en/photography/photos/1998_2001_keimola_motor_stadium/5?rev=1775801605&do=diff Photo 5: The track The track heading from south end to north (1998-09-05) Photo 4: 50 km/h<<<<<< Photo 6: Helipad>>>>>> Keimola Motor Stadium · Full size · Vaihda kieli suomeksi [The track] Photo 4: 50 km/h<<<<<< Photo 6: Helipad>>>>>> Keimola Motor Stadium · Full size · Vaihda kieli suomeksi text/html 2026-04-10T06:13:25+00:00 Anonymous (anonymous@undisclosed.example.com) https://heikkisiltala.net/wiki/en/photography/photos/1998_2001_keimola_motor_stadium/19?rev=1775801605&do=diff Photo 19: Yellow guard rails Some yellow guard rail structures at the south end of the track (1998-09-05) Photo 18: Destroyed<<<<<< Photo 20: Power line>>>>>> Keimola Motor Stadium · Full size · Vaihda kieli suomeksi [Yellow guard rails] Photo 18: Destroyed<<<<<< Photo 20: Power line>>>>>> Keimola Motor Stadium · Full size · Vaihda kieli suomeksi text/html 2026-04-10T06:13:17+00:00 Anonymous (anonymous@undisclosed.example.com) https://heikkisiltala.net/wiki/en/photography/photos/1998_2001_keimola_motor_stadium/start?rev=1775801597&do=diff Keimola Motor Stadium Photos from the abandoned Keimola motor stadium, 1998 - 2001 · 41 photos · Vaihda kieli suomeksi Here are the first photos · Page 2>>>>>> [The south end · Keimola Motor Stadium · photo 1] [Curt Lincoln 1972 · Keimola Motor Stadium · photo 2] [Stand · Keimola Motor Stadium · photo 3] [50 km/h · Keimola Motor Stadium · photo 4] [The track · Keimola Motor Stadium · photo 5] [Helipad · Keimola Motor Stadium · photo 6] [Smoke North State! · Keimola Motor Stadium · photo 7] [… text/html 2026-04-10T06:13:25+00:00 Anonymous (anonymous@undisclosed.example.com) https://heikkisiltala.net/wiki/en/photography/photos/2004_nytech_nd4020_era/39?rev=1775801605&do=diff Photo 39: Ilveslinna Ilveslinna, Jämsänkoski, shot on a tripod and zoomed to tele end (2004-08-08 Nytech ND-4020) Photo 38: Ilveslinna<<<<<< Photo 40: Rudolf Walden>>>>>> Page 2 · Full size · Vaihda kieli suomeksi [Ilveslinna] Photo 38: Ilveslinna<<<<<< Photo 40: Rudolf Walden>>>>>> Page 2 · Full size · Vaihda kieli suomeksi ilveslinna jamsankoski