Tiffen #47B dark blue filter, which actually is a blue filter primarily for black-and-white photography, that accentuates haze and fog, for contrast effects and tonal corrections, is a wonderful filter when used with a full spectrum converted camera to capture dramatic landscapes. With proper custom white balance setting, you can capture in camera faux color infrared images of blue sky, white clouds and yellow/golden foliage. All straight from your camera, without any software editing needed. You can even capture images with the camera hand held.
To set the custom white balance, instead of taking a photo of green grass, we point the camera to the clear blue sky or blue sky with some white clouds and take the photo for setting custom white balance. I found that on my Olympus E-PL5 full spectrum converted camera, using blue sky with some white clouds produces better faux color JPEG images.
Anyway, the taste of faux color images depends on different people. You may like the images but others may not like them.
All the images below were captured with my Olympus E-PL5 full spectrum converted camera and Tiffen #47B dark blue filter attached to Olympus M.Zuiko 9-18 lens on a sunny afternoon. All the images are straight out of the camera in JPEG format, no editing is done. How do you like the images?
Images below: Straight from camera non edited infrared faux colors images of Santubong Beach, Kuching. Captured with Olympus E-PL5 full spectrum converted camera and Tiffen 47B dark blue filter mounted.