Kodak 3412 ISO40 Black and White Negative Film (120 Format, Set of 5) Thank you for your continued patronage. We have received feedback from customers regarding humidity, and we have developed new individually packaged products with desiccant. ※ Sets of 3, 5, and 10 are also available on My Page. Bulk orders are also possible, so please feel free to contact us if you are interested. 【Film Features】 Kodak 3412 was originally developed as a high-definition film for aerial surveillance, so it boasts extremely high resolving power. This product is a 120 format version of the long roll type 3412, rewound onto backing paper. The backing paper used is recycled from Portra 400, Portra 160, Gold 200, Ektar 100, etc. Therefore, the brand name printed on the backing paper is different from the contents, but the film is all Kodak 3412. 【Development Notes】 This film requires processing with black and white D-76 developer. It is different from the C-41 process (color negative development) indicated on the backing paper, so please be careful not to accidentally order C-41 when ordering from a developing lab. If processed by an automatic developing machine by mistake, it may lead to equipment damage and you may be liable for damages. Please handle with care. 【About Film Speed】 The manufacturer's standard film speed is ISO 40, but shooting at ISO 25 to ISO 50 is also possible. Please adjust the film speed setting according to your shooting environment. 【About Condition】 Since the film is divided and packaged DIY, there may be some scratches or small spots on the film surface. We store all films in a refrigerator and make every effort to manage the quality, but please refrain from purchasing if you are looking for perfection or are overly concerned about minor imperfections. Shipping Method We plan to deliver via anonymous shipping (Yu-Packet Mini). This special film allows for long exposures even during the day due to its low sensitivity, giving black and white photography a new appeal. If you are interested, please consider purchasing it.