Got this information from a post at lomomanila.ph
This applies to the Holga 120S at least.
Holga Camera - technical specifications and working methods
Specifications
Lens: plastic optical lens, f8 / 60 mm
Shutter: Leaf shutter
Shutter speed: 1/100 second
Apertures: f8 (cloud/sun), f11 (sun)
Film format: 120
Frame formats: 6 x 4.5 cm (with insert); 6 x 6 cm
Focus: aft to infinity
Film
Due to [...]

I finished my first roll with my new Holga. Had it developed at my ever trusty photolab, Fuji Digital Imaging at Megamall. It was an exciting feeling on how the pictures will come out. I waited for an hour for it to be developed and rushed home to view the scanned images.
Out of the [...]