How to buy from china electronics cheap online

• Aliexpress - cheapest, only card payment 
• Gearbest -  best for buying phones, camera and laptops and accesories as well, also offers Paypal payments 
• Banggood - a bit more expensive but offers Paypal payments and has good customer service

Standard shipping takes from 2 weeks to 2 months.

When buying more expensive stuff it is worth paying for a tracking number.
For cheap 1-5$ products tracking cost its almost as much as the product.

On aliexpress you can get international tracking even with the no cost shipping method.

Nikon Coolpix P900 full spectrum / infrared camera modification tutorial

You can see in the video above how to remove the filter inside the camera for increased IR spotting.
This is the camera with an external IR filter :

K&F CONCEPT DIGITAL IR 720 67mm JAPAN OPTICS

COOLPIX P900

Coolpix 900 with IR Filter

Here are pictures taken with the camera :

Auto mode - no ir filter 

Auto mode - external ir filter 720nm

Enhanced monochrome - no IR filter

Enhanced monochrome - external IR filter 720nm

Ir filter 720nm cuts the red colors so its not the same as the original ir filter in the camera.

Monocrome mode with inside camera filter

Monocrome mode with inside camera filter removed