- Joined
- May 1, 2008
- Messages
- 25,422
- Reaction score
- 5,003
- Location
- UK - England
- Website
- www.deviantart.com
- Can others edit my Photos
- Photos OK to edit
In sigma language HSM means that the lens has fulltime manual focusing as an option. So yes the sigma 180mm and 150mm macro lenses both have fulltime manual focusing