Category Archives: Tutorials

Update zCash client in Linux

1) Backup your wallet.dat in .zcash folder
cd /.zcash                (go to zcash folder)
ls -la                            (list all hidden files, folder)
cp /.zcash/wallet.dat /home/YOUR-USER-NAME/backup               (copy wallet.dat)

2) Download zcash binary from website:
cd /home/YOUR-USER-NAME/download                   (go to download folder)
wget               (download file)
( or get newest name of packet at

3) Stop zcash client and install new package:
zcash-cli stop
sudo dpkg -i /home/YOUR-USER_NAME/download/zcash-2.0.0-amd64.deb

4) Restart zcash client:
zcashd -daemon (for running in background) — or:
zcashd (for running as active app)

5) To check status:
zcash-cli getinfo

Manually Create a Bootable UEFI 64-bit USB Flash Drive (Windows 7, 8, 2008, 2012)

  1. Create bootable USB:
    • Open CMD (with runas administrator), and use the following command to create bootable USB:
      • diskpart
      • list disk  (to verify which disk is the USB)
      • select disk # (select the USB disk)
      • clean
      • create partition primary
      • format fs=fat32 quick
      • active
      • assign
      • exit
    • Copy all file from Installation CD/DVD to the USB. It should be already bootable for 32-bit.
  2. Make UEFI (64 bit) bootable:
    • On the USB flash drive, “copy” the efi\microsoft\boot folder up one level into the efi folder as efi\boot.
    • Use 7-zip to Open sources\install.wim on the USB flash drive,
      • Go to: \1\Windows\Boot\EFI\bootmgfw.efi
      • Copy bootmgfw.efi to somewhere (e.g. desktop), then close 7-zip
      • Rename the bootmgfw.efi into bootx64.efi.
      • Copy/Move the renamed bootx64.efi file into the efi/boot folder on the USB flash drive

Brenizer Method to create more shalow DoF

In this tutorial video they will demonstrate how to prepare images in Lightroom for achieving the Brenizer method to enhance shallow depth of field, and how to finish off the merged image with stylized editing in Lightroom after the “heavy lifting” is done.

Click here for the full article:…

How to Make Flexible LED Panels (DIY Flex Lights!)

Here is one of the cooler projects for creating LED panels. Unlike the ‘usual’ LED panels, those panels are mounted on flexible material so they can be folded and mounted pretty much anywhere.

DIYPerks is using MARSWELL LEDs for good color rendition. if you look at the photo below you can see how 80+ CRI has a huge impact on image quality.


(As you remember, we are big fans of checking the CRI when buying LEDs for photography projects).


There are two things I particularly light about this build:

  • The use of False leather as the carrier for the strips, it is a durable and fine looking, so you will not be embarrassed to take it on high end sets. It does not fray. The uses shows to make the holding corners and the aluminum holding bracket are nothing short of genius.
  • The other thing is the trick for using laptop adapters by connecting the two colors in serial.

Source and discussion:

How to Remove a Background then add another in Photoshop



Notes in this tutorial:

– Use mask layer to finely cut/crop a subject.

– Cut subject’s hair with more details.

– Re-size subject to fit new background.

– Change color tone of the subject to fit new background.

– Add subject shadow.

– Use burn tool to reduce harsh light