The Holga Shutter Release Set (SRS-120) has a custom adaptor allows you to take control over your longer exposures on your Holga 120 Camera. This is especially important in order to remove any 'camera shake' or excessive blur from your images which will generally occur in any situations where the light available is not sufficient for a correct exposure. For any photography outside of very sunny conditions this is usually the case. This set does not interfere with the tripod mount or bulb setting switch.