Mods, DIY & Lens Adapting

How to Recode / Edit the DX barcode on 35mm Film Canisters

The DX barcode on a 35mm roll of film is there, in part, to tell the camera it’s put into what ISO the film is. The majority of cameras from the mid 80’s onwards read this code automatically via either electrical or optical readers. Some cameras allow the user to override this code, but many, …

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px625 replacement battery

How to Adapt a 675za Hearing aid Battery for use as a px625 replacement

The old 1.35v mercury px625 batteries are no longer available. There is a modern equivalent px625 replacement batery, made as far as I can tell exclusively by wein but they aren’t especially cheap. The advantage they do have is that they are the correct 1.35v. LR44 batteries can be used in the way I am …

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