- .: smc PENTAX-K|-M|-A 50mm ƒ/1.4 + Takumar 50mm ƒ/1.4 :.
- Black and White
- Cave Entrances
- darktable
- GIMP users
- Night Photography and Long Exposure
- Pentax Linux Users Group
- Portrait format Landscapes
- Tennessee Waterfalls
- The Enlightened - Landscape Photography
- The Rust Bucket
- Twilight Area
- Windows Galore