iljitsch.com

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Hi, I'm Iljitsch van Beijnum. This page has all posts about all subjects.

Verkiezingen komen er aan! #1

Een kleine drie weken geleden viel het kabinet Rutte-4. Sindsdien hebben premier Rutte en alle vice-premiers aangekondigd na de demissionaire periode de politiek te gaan verlaten. Twee lijsttrekkers van de verkiezingen van 2021 waren al vertrokken en nog eens drie hebben aangekondigd niet verder te gaan. We gaan de verkiezingen van 22 november dus tegemoet met een flink aantal verse lijsttrekkers.

Full article / permalink - posted 2023-07-26

Looking back on 50 years of Ethernet

On potaroo.net Geoff Huston wishes Happy 50th Birthday Ethernet.

Back in 2011 I wrote an Ars Technica feature about the history of Ethernet: Speed matters: How Ethernet went from 3Mbps to 100Gbps… and beyond.

Interesting to compare our different takes!

And of course Ethernet is still going strong. My oldest computers have the original 10 Mbps Ethernet adapters that I got almost 30 years ago, while my newest computer has 10 gigabit Ethernet, 1000 x faster.

Permalink - posted 2023-06-29

My favorite pointing devices

Image link - posted 2023-05-13 in

Comparing digital and film resolution using MTF

I fell down a rabbit hole a while ago trying to come up with the definitive answer to the often-asked question "how can old movies be in HD/4K", which immediately leads to "how does film and digital resolution compare".

The answer to the first question is of course that film as a lot more resolution than standard definition TV, so just scanning the movies at a higher resolution will give you a sharper image than that old DVD or (shudder) VHS tape.

The problem with reasoning about film grain vs pixels or eyeballing images is that it's very imprecise. But we actually do have a tool that lets us compare digital vs film: the optical transfer function.

Integrated below a little tool with a slider to see for yourself where the tradeoffs are.

Read the article - posted 2023-03-29

Skyline #19

Image link - posted 2023-02-14 in

Skyline #18 shot-on-film (Kodak Tri-X) edition

Image link - posted 2023-02-05 in

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