Has it irked the big camera companies to see Instagram soar to success? Do Swedish Fish stick to your teeth? Canon is looking to cut out the middleman with the new PowerShot N ($300), an ultracompact shooter with a touchscreen-based interface that selects the best filter for your photo. The 12-megapixel sensor, beefed up Wi-Fi, and pocket-friendly form, coupled with Instagram’s recent issues, could be a recipe for success here.