Getting your head around the various instant film formats is an important first step before you make a purchase decision. Let's start with the most popular option, Fujifilm's Instax Mini. This film is about the size of a credit card when you take its border into account, and the image area measures 2.4 by 1.8 inches (HW). Film is available in color or monochrome, and is compatible with cameras from many different brands: Fujifilm, Lomography, Mint, and Nons among them. Our favorite entry-level model, the Fujifilm Instax Mini 12, sells for about $80 and is available in many colors. If you're a more serious shutterbug, consider the Lomo'Instant Automat Glass, which has a wider-angle lens (better for selfies) and supports multiple exposure images. Color Instax Mini film is pretty affordable. Prices vary a bit across retailers, but you should expect to spend around $0.70 per photo. Black-and-white film is a little pricier, at around $0.90 per image. And if you want film with colorful borders or other special finishes, the costs can double from there. Buying in bulk is one way to save money in the long run. If you prefer a bigger image, you can opt for the Instax Wide format, which is also available in color or black and white. The image size is about double that of Mini—basically two mini shots side-by-side (2.4 by 3.9 inches). Thankfully, this film doesn't cost double that of Mini—expect to spend around $1.00 per color photo and $1.60 for each black-and-white image. For some photographers, instant film is film, which means a square format is a must. In that case, you want Fujifilm's Instax Square film. It has long been available in color, with a per-shot cost of about $1.00. Fujifilm has recently added Instax Square Monochrome to its catalog for black-and-white shots, but it's slightly pricier at close to $1.50 per frame.