Category Archives: Hardware

Using Lightning-to-USB-Adapter to copy photo from USB drive to iPhone/iPad


Using Lightning-To-USB Adapter to copy images from USB Flash Drive to iPhone/iPad:

  • Requirement:
    • All image files need to put in a folder name: DCIM
    • Image files must have a filename with exactly 8 characters long (no spaces) plus the file extension (i.e.,; DSCN0164.jpg).
  • How to copy file:
    • If connected iPhone/iPad sees the flash drive, it’ll open all photos in thumbnails. You cannot view more than thumbnails off the drive. To see them bigger, you must import them.
    • Select to import few photo or import all photos.
    • Once you import, pay attention to the dialogue boxes because it’ll offer to delete the photos from the flash drive for you.
    • (You can not export photo from iPhone to flash drive).


Sony RX100 Series Comparison (I, II, III, IV and V)

Articles from:

Specification Sony RX100 I Sony RX100 II Sony RX100 III Sony RX100 IV Sony RX100 V
As expected, the latest generation Sony RX100 V obviously does have much richer feature-set and specifications compared to its predecessors. It has a superior Stacked CMOS sensor with excellent image quality that surpasses all the previous generation RX100 cameras, faster Bionz X processor with a front-end LSI capable of handling up to 24 fps shooting speed, 315 phase-detection autofocus points, 4K video recording at up to 30 fps and very respectable slow motion video recording capability up to 960 fps. It can handle shutter speeds of up to 1/32000 sec, has a very nice 2.36M electronic viewfinder (EVF), incredibly fast autofocus and a few other nice extras, such as anti distortion shutter and ability to set minimum shutter speed when shooting with Auto ISO enabled.
Announcement Date 06/06/2012 06/27/2013 05/28/2014 06/10/2015 10/06/2016
Sensor Type CMOS BSI CMOS BSI CMOS Stacked CMOS Stacked CMOS
Sensor Resolution 20.2 MP 20.2 MP 20.1 MP 20.1 MP 20.1 MP
Sensor Size 13.2 x 8.8mm (1″) 13.2 x 8.8mm (1″) 13.2 x 8.8mm (1″) 13.2 x 8.8mm (1″) 13.2 x 8.8mm (1″)
Native ISO Range 125-6400 160-12,800 125-12,800 125-12,800 125-12,800
Image Processor Bionz Bionz Bionz X Bionz X Bionz X
Phase Detection Autofocus No No No No Yes
Phase Detection Autofocus Points N/A N/A N/A N/A 315 AF Points
Lens Focal Length 10.4-37.1mm 10.4-37.1mm 8.8-25.7mm 8.8-25.7mm 8.8-25.7mm
Focal Length in 35mm Equiv 28-100mm 28-100mm 24-70mm 24-70mm 24-70mm
Lens Aperture f/1.8-f/4.9 f/1.8-f/4.9 f/1.8-f/2.8 f/1.8-f/2.8 f/1.8-f/2.8
Integrated ND Filter No No Yes Yes Yes
Maximum Shutter Speed 1/2000 sec 1/2000 sec 1/2000 sec 1/32000 sec 1/32000 sec
Startup Time 2.8 sec 2.8 sec 2.0 sec 2.0 sec 2.0 sec
Anti Distortion Shutter No No No Yes Yes
Auto ISO Min Shutter Speed No No No Yes Yes
EVF N/A Optional 1.44 Million Dot EVF 2.36 Million Dot EVF 2.36 Million Dot EVF
Flash Hotshoe No Yes No No No
Built-in Flash Yes Yes Yes Yes Yes
Continuous Shooting Speed 10 fps 10 fps 10 fps 16 fps 24 fps
Buffer Size 13 JPEG / 13 RAW 13 JPEG / 13 RAW 48 JPEG / 26 RAW 48 JPEG / 26 RAW 150 JPEG + RAW
LCD Screen 3.0″ Fixed 3.0″ Tilting, +90°/-40° 3.0″ Tilting, +180°/-45° 3.0″ Tilting, +180°/-45° 3.0″ Tilting, +180°/-45°
Video Recording 1080p, up to 50 fps 1080p, up to 60 fps 1080p, up to 60 fps 4K, up to 30 fps 4K, up to 30 fps
S-Log2/S-Gamut No No No No Yes
Slow Motion Video N/A N/A Yes, Up to 120 fps Yes, Up to 960 fps Yes, Up to 960 fps
Slow Motion Video Duration N/A N/A 29 min 4 sec 8 sec
Built-in WiFi No Yes Yes Yes Yes
Battery Life (CIPA) 330 shots 350 shots 320 shots 280 shots 220 shots
Weight 240g 281g 290g 298g 299g
Size 102×58×36mm 102×58×38mm 102×58×41mm 102x58x41mm 102x58x41mm
Current Price (as of 10/06/2016) $448 $598 $748 $998 $998

Connect to Sony MDR-XB950BT Headphont via Bluetooth


Connect to Sony XB950BT Headphone via Bluetooth

  1. Place the Bluetooth device (iPhone, laptop…) within 1 meter (3 feet) of the Headphone.
  2. Enter pairing mode on the Headphone. Press and hold the POWER button for about 7 seconds. Make sure that the indicator flashes blue and red alternately after you release the button.
  3. Perform the pairing procedure on the Bluetooth device (iPhone…) to detect the Headphone. When the list of detected devices appears on the display of the Bluetooth device, select “MDR-XB950BT.” If passkey input is required on the display of the Bluetooth device, input “0000”
  4. Make the Bluetooth connection from the Bluetooth device.


Led indicators

  1. : Turns on in blue
  2. : Turns on in red
  3. – : Turns off


  1. Pairing mode    ○  ○
  2. Connectable      ○ – – ○ – – ○ – – ○ – – ○ – – ○ – – ○ – – ○…
  3. Connecting        ○ ○ – ○ ○ – ○ ○ – ○ ○ – ○ ○ – ○ ○ – ○ ○…
  4. Connected (HFP/HSP or A2DP) ○ – – – – – – – – – ○ – – – – – – – – -…
  5. Connected (HFP/HSP and A2DP) ○ – ○ – – – – – – – ○ – ○ – – – – – – -…
  6. Playing music or during a call (HFP/HSP or A2DP) ○ ○ – – – – – – – – ○ ○ – – – – – – – -…
  7. Playing music or during a call (HFP/HSP and A2DP) ○ ○ ○ – – – – – – – ○ ○ ○ – – – – – – -…
  8. Incoming call ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○…

Hint: when the remaining battery charge becomes low, the indicator turns from blue to red, except for pairing mode.


Checking the remaining battery

When you turn on the headset by pressing the POWER button, the indicator (red) flashes. You can check the remaining battery charge by the number of times the indicator (red) flashes.

You can also check the remaining battery charge when the headset is turned on. Pressing the POWER button will cause the indicator to flash and show the remaining battery charge.

  • 3 times: High
  • 2 times: Medium
  • 1 time: Low (needs to charge)

When the battery is almost empty The indicator turns red. When the battery becomes empty, the headset sounds a warning beep and turns off automatically.


Reset headphone

1. Soft reset the headset:

If the headset cannot be turned on, or if it cannot be operated even when it is turned on, set the headset in charging status, then press the POWER and BASS BOOST buttons simultaneously. The headset is reset and turns off.

2. Hard reset the headset (to factory default):

Turn off the headset, then press and hold the POWER and PLAY/CALL buttons simultaneously for more than 7 seconds. The indicator (blue) flashes 4 times, and the headset is reset to the factory settings. All pairing information is deleted.

How Canon EF lenses auto-focus on A7ii/A7Rii with adapters

Test result database here:

Test form for people input their test results here:


Adapter which allow AF for Canon lenses on A7ii/A7Rii:

  • Metabones T Smart Adapter IV ($400)
  • Sigma MC-11 ($250)
  • FotodioX AF Adapter for Canon EF to Sony E-Mount ($100)
  • Viltrox Auto-focus Canon EF/EF-S Lens to Sony E Mount Adapter II ($100)
  • Commlite EF-NEX ($100)
  • Techart EOS-NEX III ($190)     [unstable]
  • No Brand EF-NEX ($50) (apperance similar to Commlite adapter)

Guide to Sony A7ii, A7Rii, A7Sii lens adapters (2014):


Git 2 Gitup Action Camera Review


Some of the exciting features of GIT2 are 16 megapixels IMX206 Sony Exmor image sensor and Novatek NTK96660 chip. Combination of the two allow camera to create true 16mp images in RAW or Jpeg, and more importantly video at 1080p 60 FPS together with 2K @30FPS and 2880×2160 @24fps. Camera supports external microphone and memory card up to 64gb.

Like previous model, this one is compatible with wrist controller which allows remote control of the camera via radio frequency. Additionally camera has a built in WiFi, so you can connect to it via your smartphone. It got 30-meter water-proof housing (like GoPro Hero). Its retail price is around 159$, though some Chinese retailers sell it for a bit less.

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SMD LED Brand Comparison

2014 Comments from Functional Utility Inc

CREE and Epistar are the most popular chips/drivers used in the automotive LED light bar industry, although there are actually more than a dozen different brands that are commercially available.

CREE, Inc. was established in 1987 and is based in the USA. They hold thousands of patents in more than twenty countries around the world and are universally accepted as the LED industry’s most prolific innovators. CREE makes the best LEDs, but other manufacturers are in a close second place when it comes to LED quality. Epistar Inc. (a Taiwan based company) and Nichia Corp (a Japan based company) produce good quality LEDs as well. It is important to note that CREE licenses the use of its patents to others, and all three of the leading LED companies manufacture most of their LEDs in China.

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