Jump to content

Randy Lunn

Full Member
  • Posts

    316
  • Joined

  • Last visited

 Content Type 

Forums

Detector Prospector Home

Detector Database

Downloads

Posts posted by Randy Lunn

  1. Tom, you have some great pictures of your amazing nuggets. Well done! The guy who is arguably the best mineral photographer is Jeff Scovil. He has a website, http://scovilphotography.com/  ,with examples of his work and also teaches a class at the Tucson Gem and Mineral Show in February. He often uses a glass top platform. This allows him to set up lights and reflectors as well as use colored backgrounds. Here is a picture of his set up:

    Related image

  2. I am not an expert in this area but in general higher ohms will give you less distortion. However it is more important to match the impedance of your source and earphones. I believe the GPZ 7000  has an out put of around 100 ohms. The standard Minelab Koss headphones also have an impedance of around 100 ohms. Given the narrow frequency output range of the GPZ 7000 I would guess that higher ohm headphones do not add much. However, individual hearing might prefer and possibly benefit from  higher ohms. 

     

    Go go with Gold Seeker's advice and compare signals with your buddy's high ohm earphones.

×
×
  • Create New...