lomo colorsplash double exposure
Holga cameras are often modified:
* A Holga's interior can be "flocked" — coated with matte black paint — in order to limit the effect of light bouncing off the plastic interior from light leaks.
* The Holga's aperture switch can be modified to set a large ('cloudy') and small ('sunny') aperture.
* The lens, and sometimes the entire shutter assembly, can be replaced with a pinhole (the "Pinholga").
* The plastic lens can be replaced with a glass version (the "Woca").
* Newer models of the camera come with multiple optional frame inserts (4.5 × 6 cm and 6 × 6 cm). Shooting without an insert can lead to problems keeping the 120 size film flat against the film plane.
Some modifications permit the use of other film formats:
* Holga cameras may be fitted with a Polaroid back, allowing use of Polaroid 80 series instant film, or with newer models, 100 series film (but the image is not centered). This modification, sometimes termed a "Holgaroid" or "Polga", renders the viewfinder unusable, but allows for instant Holga prints.
* By sandwiching a normal 35mm roll of film into the Holga's 120 spool, "sprocket hole" exposures may be taken that expose the entire surface of 135 film.
* Cameras such as the Hasselblad have been modified to make use of a Holga lens.
* Holga plastic lenses have been adapted to the Nikon f-mount. An f-mount, 'melted' plastic Holga lens has been used on a digital f-mount camera.