REX ์ฐจ๋Ÿ‰์šฉ ์•„์ดํฐ4 ํฌ๋ž˜๋“ค ๋ฆฌ๋ทฐ

๋งˆ์ด๋ฏธ์ธ  2010๋…„ 9์›” ์ฒดํ—˜ ์ด๋ฒคํŠธ๋Š” ์•„์ดํฐ4์šฉ ์•ก์„ธ์„œ๋ฆฌ 3์ข… (์•ก์ •๋ณดํ˜ธ์ง€, ์ฐจ๋Ÿ‰์šฉ ํฌ๋ž˜๋“ค, ์ฑ…์ƒ์šฉ ํฌ๋ž˜๋“ค) ์ด์—ˆ์œผ๋ฉฐ, ์ €๋Š” ๊ทธ ์ค‘ ์ฐจ๋Ÿ‰์šฉ ํฌ๋ž˜๋“ค์„ ์จ๋ณด๊ฒŒ ๋˜์—ˆ์Šต๋‹ˆ๋‹ค. ์ •์‹ ๋ช…์นญ์€ 'REX Car Cradle'์ด๋ฉฐ GUT Korea์—์„œ ์ œ์กฐํ•˜๊ณ  ์œ ๋ ˆํŠธ์—์„œ ํŒ๋งคํ•ฉ๋‹ˆ๋‹ค.

1. ๊ตฌ์„ฑ ๋ฐ ์กฐ๋ฆฝ

์ด ํฌ๋ž˜๋“ค์€ ์œ„์น˜์กฐ์ ˆ์ด ๋˜๋Š” ํก์ฐฉํŒ๊ณผ ํœด๋Œ€์ „ํ™” ๋ณธ์ฒด๋ฅผ ์žก์•„์ฃผ๋Š” ํ‹€๋กœ ๊ตฌ์„ฑ๋˜์–ด ์žˆ์œผ๋ฉฐ ๊ฐ๊ฐ ๋”ฐ๋กœ ํฌ์žฅ๋˜์–ด ์™”์Šต๋‹ˆ๋‹ค.

REX ์ฐจ๋Ÿ‰์šฉ ํฌ๋ž˜๋“ค - ํฌ์žฅ๋œ ์ƒํƒœ

Continue reading "REX ์ฐจ๋Ÿ‰์šฉ ์•„์ดํฐ4 ํฌ๋ž˜๋“ค ๋ฆฌ๋ทฐ"

๋ธ”๋ฃจํˆฌ์Šค ํ‚ค๋ณด๋“œ BHK49 ๋ฆฌ๋ทฐ

๋‘ ์†์œผ๋กœ ์ฅ” BHK49

์ด๊ฒƒ์€ ๋ธ”๋ฃจ์˜ค์…˜์ƒต์—์„œ ๋‚˜์˜จ BHK49๋ผ๋Š” ๋ธ”๋ฃจํˆฌ์Šค ๋ฌด์„ ํ‚ค๋ณด๋“œ์ž…๋‹ˆ๋‹ค. ๋ณด์‹œ๋Š” ๋Œ€๋กœ, ๋‘ ์†์„ ์žก๊ณ  ์—„์ง€๋กœ ์žํŒ์„ ์น  ์ˆ˜ ์žˆ๋„๋ก ๋งŒ๋“ค์–ด์ง„ ํœด๋Œ€์šฉ ํ‚ค๋ณด๋“œ์ž…๋‹ˆ๋‹ค.. ์ด ์ œํ’ˆ์€ ๊ณผ์—ฐ ์ €๋ฅผ ๋งŒ์กฑ์‹œ์ผฐ์„๊นŒ์š”? ๊ถ๊ธˆํ•˜์‹œ๋ฉด ๊ณ„์† ์ฝ์–ด๋ณด์‹œ๊ธฐ ๋ฐ”๋ž๋‹ˆ๋‹ค.
Continue reading "๋ธ”๋ฃจํˆฌ์Šค ํ‚ค๋ณด๋“œ BHK49 ๋ฆฌ๋ทฐ"

iPhone 3GS camera's actual resolution

The dizzying ISO 12233 Test Chart

Point-and-shoot digital cameras have reached the end of the 'megapixel race' at around 12 megapixels, giving you a photo with the resolution of 4000x3000. One of the reasons for this peak is that the typical image sensors used in this class can produce only around 10 megapixels of actual data at best, and even less with internal post-processing applied. As a result, camera's 'actual' resolution will be far less than 4000x3000, even if the 'output' resolution is that large. Increasing output resolution any higher without better sensors would be no better than doing a digital zoom - bigger picture without more detail.

A smart shopper would therefore avoid blindly following the megapixel number on the spec sheet, and instead check the sensor size as well as the actual sample images posted in independent product reviews. In many professional reviews, an ISO 12233 Test Chart(partly seen above) is used to check the actual resolution of a camera. DPReview has been extensively using it.

So, why am I talking about this 'actual' and 'output' resolution today? I carry a nice compact digital camera - Kodak Z1085 IS - and an excellent smartphone - iPhone 3GS - with me at all times. The image quality is good for the given class, and they have the maximum native output resolution of 3648x2736 (10MP) and 2048x1536 (3MP), respectively. But I suddenly got curious as to what their actual resolution would be. Unfortunately, searching the internet did not come up with any resolution testing - it was time to do a little testing of my own...
Continue reading "iPhone 3GS camera's actual resolution"

Optimus mini three + iRocks KR-6600

The keys to my Mac

I've been using an interesting combo of input devices lately. Namely, Art Lebedev Studio's Optimus mini three keyboard (left) and I-ROCKS' KR-6600 'nano slim' keyboard. The two keyboards are relatively unique in that the mini three is the first keyboard to implement OLED displays for the keys, and that the KR-6600 is probably the smallest 'full set' keyboard you'll find on the market. It's barely bigger than the Half Keyboard I used for my wearable computer back in the old days.
Continue reading "Optimus mini three + iRocks KR-6600"

The $14 MP3 Player disassembled

Guts open

(Continuation of "The $14 MP3 Player")

Curious to find out what made this cheap MP3 player tick, I had to take it apart... carefully, of course, because I wanted to keep using it. You unscrew two tiny metal bolts, then have to unhinge the two plastic hooks that stick the top and bottom pieces together. The plastic hooks were a bit hard to get around, since it looked kind of easy to break. I did manage to do it without breaking anything, and the device revealed its innards.
Continue reading "The $14 MP3 Player disassembled"

Copyright (C) 1996-2024 Woo-Duk Chung (Wesley Woo-Duk Hwang-Chung). All rights reserved.