Right off the bat, there are filters for:
- Thermal
- Mirror (think reflection in a lake)
- Night vision (i.e. black and green)
- X-ray (think negative)
- Pink
- Black and white (actually monochrome)
- Sketch (think line drawing)
- Blue
- Lomo (a vintage look from the days of the earliest cameras)
- Brown
Each is shown in real time on-screen (i.e. at nHD resolution) and taking a shot is done with the on-screen button - there's no support for the camera phone shutter key:
By default, the output resolution of this (fun) app is 3 megapixels, but you can up this in the Settings (see screenshot later) to something higher at the risk of a longer processing time when you want to save what you've snapped. CamEfx's warning (below) is for full 12mp images - it's only a handful of seconds for 3mp ones, don't worry.
Once saved, you can share directly from CamEfx, though you do of course have to go through each service's web site to authorise the app the first time you do this. One oddity is that CamEfx didn't use my standard 'Internet' settings and wanted me to make a specific access point selection before it would go online.
Also available in Settings is the strangely named 'Focal length with volume buttons' - what the developer means is 'Zoom with volume buttons' - it's nothing to do with focal length as far as I can see (CamEfx does focus before taking each shot, by the way). Probably an English translation thing and not surprising from someone who mispelt 'Gallery' in the screenshot above....
I'm sure you can have lots of fun with CamEfx once you've worked out how it works and have set it up, etc. But, as with Instagram and all others of its ilk, it's not for me....!
CamEfx is free in the Store here (presumably with ads) - I was trying the commercial version, here.