Shanghai GP3 100 Pan 120 roll film
Sealed in moisture-proof laminate for easy, safe storage in your refrigerator or freezer.

Important! This black and white film should not be processed as a color film. Color processing uses a bleach step which will remove the image. Be sure your local lab develops it in black and white chemistry and does not subject it to a bleach process.

This is a good quality, inexpensive black and white roll film made in China by the SMPIC Photosensitive Materials Factory of Shanghai, an industry leader with more than 40 years of experience in making photographic materials. 

The parent company, SMPIC , was founded in 1973 and is currently joint venture partner in China with Polaroid and Fuji Xerox, making cameras and office machines, and is also a major producer of high-quality optical glass.

SMPIC makes their photosensitive films to very high standards of quality, easily the equal of the major international brands. Each boxed roll is heat-sealed in a paper-plastic laminate high-barrier wrap, and can safely be stored in a refrigerator or freezer without worrying about moisture damage.

I have tested several rolls, outdoors and under controlled lighting. My personal experience is that GP3-100 compares favorably with Kodak Plus-X and Ilford FP4-Plus. Anyone who has used Efke PL100 will be equally satisfied with GP3-100, and will appreciate GP3's heat-sealed, moisture-proof packaging, as opposed to the Efke unsealed wrapper. I have no hesitation in recommending this fine film, despite its low price. David Foy

There are three quirks: 

• the frame numbers printed on the backing paper are faint and difficult to read through the red window on the back of some of the simpler cameras. Users report that a small flashlight, plus very careful film advancing, helps, but proper framing is still troublesome. This causes no problem in cameras that have automatic film advance, such as the Yashica-Mat, Mamiya MF cameras, or the Kiev SLRs.

• there are no frame numbers or anything else pre-exposed on the edge of the film. This is not a problem, just a peculiarity.

• the gummed paper seals at the end of some rolls have too little gum, or none, so you may need to seal exposed rolls with tape or a rubber band. This is not a problem, as long as you are aware of it beforehand.

Shanghai
GP3 100 Pan
120 roll film

product: 120-GP3  
Per roll:

Per brick of 50 rolls:

UPDATE: User reports are starting to come in, and many people are very pleased with the images they are getting. 

Expose at ISO 100, and process in D76 1:1 for ten to twelve minutes for excellent shadow and highlight detail.

Process this film at home using instant coffee, vitamin C, and a few other common kitchen, laundry, and swimming-pool chemicals. Click here for details.

Recommended by a photographer in China (room temperature, approximately 68-70°F):

Developer	Time in Mins
Kodak D-76 Developer	8
D76 1:1	14
D23	12
Rodinal 1:50	15
D72 1:4	4
Kodak HC110
1 + 15 (A)	5
1 + 31 (B)	7.5

Process your own 120 film at home. This is the only specialized equipment you need.

Compact Developing tank with two easy-load spiral reels.

Chemical-resistant plastic. Process color or black and white film, 35mm or 126 (one or two rolls at a time), plus 127, 120, 620, and 220 (one roll at a time). 

Includes tank, light-proof lid with "wave motion" manual agitation rod, liquid-tight lid for agitation by shaking or rolling, two rapid-load spiral reels that adjust for 35mm, 126, 127, or 120/620/220, box, and instructions.

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Shanghai GP3 compares favorably with these fine professional films.