# Per Frame: A Comparative Tool for Film Photography Costs New platform standardizes film pricing across formats to reveal true per-frame expenses. - **Source:** [Hacker News: Show HN](https://news.ycombinator.com) - **Published:** 2026-11-06 - **Topic:** [technology](https://brifing.si/c/technology) - **Original article:** - **On Brifing:** https://brifing.si/s/bdec4efb-6985-4f33-bc74-ecd1afafb4f0 ## Standardizing Analog Film Costs The platform Per Frame launched on November 6, 2026, to simplify purchasing decisions for analog photographers. By normalizing costs across 170 different film types and seven distinct stores, it allows users to compare prices effectively. The tool covers various formats, ranging from standard 35mm rolls to large 8x10 sheet films. ## Mathematical Normalization Methodology The system calculates value by dividing the total pack price by the number of units, then further dividing by frames per unit. For bulk 100ft rolls, the calculation assumes approximately 18 rolls of 36 exposures, totaling 648 frames. This rigorous mathematical approach ensures that users see the actual cost per individual exposure. ## Dynamic 120 Format Calculations Unlike fixed-frame formats, 120 film presents a unique challenge because frame counts vary by camera back. The tool allows users to select specific configurations, such as 16 frames for 6x4.5 or 10 frames for 6x7. Every selection triggers an automatic recomputation, providing accurate pricing data tailored to the photographer's specific equipment setup. ## Bulk Purchasing Reality Check Many photographers assume that pro packs or bulk rolls are always the cheapest option, but this is not always true. Per Frame ranks pack sizes to identify which specific purchase actually offers the lowest cost per frame. It highlights instances where single rolls might occasionally outperform bulk discounts in total value. ## Affiliate Disclosure and Transparency The site utilizes affiliate links for some stores to generate commissions without increasing costs for the consumer. These links never influence the ranking of results, as the cheapest option is always displayed first. The only exception occurs when two stores offer identical prices, in which case the affiliate link is prioritized. ## Diverse Film Stock Coverage The database currently tracks a wide array of film stocks, including Agfa APX, ORWO series, and various Lomography products. By aggregating data from multiple retailers, the platform provides a comprehensive view of the market. This transparency helps users navigate the often confusing pricing structures found across different specialized photography retail outlets. ## Instax and Polaroid Integration Beyond traditional roll film, the tool includes instant film formats like Instax Mini, Square, Wide, and various Polaroid types. Calculations for these are based on standard pack sizes, such as 10 photos for Instax and 8 for Polaroid. This inclusion makes the tool useful for both professional photographers and casual instant camera users. ## Market Impact and Utility This tool addresses the lack of price clarity in the niche analog market by providing actionable data. By focusing on the cost per frame rather than the pack price, it empowers photographers to optimize their supply chain. It serves as a practical resource for managing the rising costs of film photography today. ## Sources covering this story - https://perframe.app/ — --- _Summary written by Brifing from the original reporting. Copyright in the original article belongs to its publisher; read the full piece at the link above._