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Nikon D610 + 85 1.4D vs Panasonic GH5 + 42.5 1.2
Low light performance comparison: The focus point is on letter P. On the left it’s Nikon with ISO 2000 and on the right it’s Panasonic with ISO 1600. Nikon has better ISO performance. Perspective Effect: If we look at the background the sofa on the left is bigger and the front object is actually relatively smaller. We can tell the difference between 85mm and 42.5mm. The view of field are same but the perspective effect is different.
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Handy Bash Command
It always very handy to know a little bit bash to do file operation. E.G. generate SQL by csv. Convert csv to a SQL: Input Script Output Notes: Generate UUID and convert big case to small case
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Clew is so special (clew bindings for snowboard)
Clew closes its own website during the off season. This is so special and I don’t understand why they are doing this:
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How TLS handshake works
This chart is based on the article here: https://www.cloudflare.com/learning/ssl/what-happens-in-a-tls-handshake/ It would be much clear to be able to show it in a sequence chart. The key point is in each step what client/server has to generate sessionKey. The premasterSecret is the key factor here. it got generated in the client side by using the pubic key generated in server side. In this way, client side has it’s value (since it generated in client side) and the server side can get it by using private key to decrete it. Sequence diagram source code: mTLS mutual TLS is enhanced TLS which server side needs to verify the identity on the client side…
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On Cloudboom Review
This is my first time to by a running shoes. This is a carbon fiber racing shoe. The time I put it on I feel the difference. I do feel the cushioning on the heel and it’s very stiff on the toe side. And even more significant is I feel the heal to toe drop immediately that the shoe pushes me forward very obviously. It actually feels good.. I took it to a run in my front door, Feel good too. My left knee got injured before and I still feel uncomfortable while I am running. I was planning to return since, since I bought Hoka Bonni 8; but I…
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Work Suggestion: Don’t hesitate to take leave
Some people are afraid of taking vacation because they worry that it would impact their performance. If you look at how we evaluate people it really about two things: Most of cases, taking leave would help you perform better.
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Life is so short (thought after watching Top Gun 2).
The original Top Gun released in 1986 when I was 6. The second sequel Top Gun maverick released in 2021 when I was 41. It was 35 years! Another 35 years I will be 76 year old. Tom Cruise was born in 1962 and he will be 95 yeah old if we have the third sequel with the same cadency.. It just makes me feel so unreal that life is just so short
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Mac command line cheat sheet
Behavior Command Comment go to the beginning of the line ctrl+a go to the end of the line ctrl+e Save a output of a command to a env variable principle_arn=$(aws –profile perAdmin sts get-caller-identity –query Arn –output text) use a env variable ${principle_arn} replace character sed -e “s|PRINCIPAL_ARN|${principle_arn}|g” \assume-role-policy-template.json > assume-role-policy.json The delimiter of choice is a forward slash (/), which is the most commonly used delimiter. However, sed can use any character as a delimiter. In fact, it will automatically use the character following the s as a delimiter-e means you can use the followed scripts multiple times.https://unix.stackexchange.com/questions/33157/what-is-the-purpose-of-e-in-sed-command
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Kibana Query cheatsheet
Example Query Result DSL message:”a test” 1 match phase message: a test 1, 2 match message.keyword: “a test” none match phase message.keyword: “this is a test” 2 match phase KQL got converted to DSL before sending to the server: We can check the related DSL by clicking “inspect” button in UI. Reference: https://xeraa.net/blog/2021_kibana-map-kql-url-elasticsearch-query/
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CLEW Snowboard binding
Let’s try it. next year!