[Super645]

I recently saw a video on YouTube where the ISO setting for a Rollei A110 camera was modified to push Lomography Tiger (200) to 400. This is the link to the video:

You Tube

You Tube

This was done by removing the bottom half off the lug at the end of the film. Am I correct that this would have the same effect for the Auto 110? Without a film, does the Auto 110 default to the higher speed setting, believed to be 320?

[leekil]

It works the same on the Auto 110.

[Super645]

Film speed detection
The camera detects the film speed by the presence or absence of a ridge on the cartridge, as specified in the Kodak 110 film standard. Since there is no official specification of what the film speeds should actually be—they were just "low" and "high"—film and camera manufacturers had to decide for themselves the meaning. Pentax chose ISO 80 and 320 as their settings, but commercially available films at ISO 100 and 400 are close enough to work in practice. A film with an ISO 200 speed would result in either under- or over-exposure. The exposure latitude of color print films is about 2 f/stops (meaning that a photographer could expose either 2 f/stops under or 2 f/stops over the exposure set by the camera). Unfortunately, some recently produced 110 film is rated at ISO 400, but is packaged with the ridge indicating "low". If this is the case, the ridge must be removed (by filing or cutting with a sharp blade) for the camera to expose correctly. Since only a few 110 cameras ever supported the ISO auto-selection, this does not affect the majority of cameras using the format but does affect the Pentax Auto 110. In 2012/2013 ISO 100 film has been produced and marketed under the Lomography label, and gives excellent results, without the need to modify the cartridge casing.

Source: Wikipedia