Aperture vs Kinemetron

Aperture - Light Meter: Simplifying Film Photography with Precision Aperture - Light Meter is a minimalist, intuitive tool designed to help film photographers achieve perfect exposure and document their creative process. By calculating the ideal aperture and shutter speed based on your film’s ISO sensitivity, the app ensures every shot is perfectly balanced. Featuring integrated Zone System metering, a continuous film frame counter, and a visual shot log gallery, Aperture makes it easy to track your rolls, evaluate contrast, and log settings for future analog projects. Key Features: Accurate Light Metering & Zone System: Compute precise aperture and shutter speed settings based on your film’s ISO sensitivity. Tap to measure specific target zones and pre-visualize contrast for maximum control over highlights and shadows. Continuous Film Frame Counter: Automatically track your roll from frame 0 to 36 as you shoot. Smart continuation allows manual roll extensions (e.g., frame 37+) for bulk-loaded or longer rolls, with frame numbers stamped on gallery thumbnails and photo details. Easily adjust or clear frame values with a native wheel selector. Reference Photo Album & Visual EXIF Log: Capture digital reference photos saved with complete exposure metadata (ISO, aperture, shutter speed, frame number, and date). Access a visual gallery to compare developed lab scans against original metering data. Minimalist & Intuitive Design: A clean, distraction-free interface crafted to perfection, allowing you to evaluate light and adjust settings without breaking your shooting rhythm. Customizable Ranges & Lens Presets: Match your camera setup with customizable aperture and shutter speed bounds, or select preset profiles for fast, macro, or long-exposure shooting scenarios. ISO Sensitivity Input: Dial in exact ISO values tailored to your specific 35mm or medium format film stock. Why Choose Aperture - Light Meter? Designed for Analog Shooters: Built specifically for manual film cameras, bridging the gap between analog workflow and digital logging tools. Crafted to Perfection: Fast, reliable, and distraction-free—no ads, trackers, or hidden subscriptions. Document & Refine Your Craft: Keep accurate frame-by-frame records so you know exactly how each exposure was calculated when your lab scans come back. Who Is This App For? 35mm and medium format photographers seeking high-precision exposure metering. Analog enthusiasts who want an effortless way to log film EXIF data and track frame numbers. Photographers who want a dedicated Zone System light meter built for speed in the field. Simplify your film photography workflow with Aperture - Light Meter. Achieve perfect exposure, track your roll frame by frame, and shoot with confidence. Download now to elevate your analog process!

Is your 1/30 really 1/30? Kinemetron tests the shutter speeds of film cameras with nothing but your iPhone, and adds a light meter for when you go out shooting. TEST YOUR SHUTTER Fire the shutter next to your iPhone. Kinemetron hears the opening and closing of the shutter and shows the measured time next to the dial setting, with the error in stops. Microphone mode covers slow speeds from 1 second to 1/15 s. HANDS-FREE SERIES Pick a speed and keep firing. Each release is detected on its own, three shots per speed, then Kinemetron moves to the next speed. Finish a sweep and get a health report for the whole camera. FASTER SPEEDS WITH THE IPHONE CAMERA Open the camera back, point the iPhone camera through the shutter at a bright light and measure the light pulse. Camera mode is an experimental estimate for faster speeds. LIGHT METER Reflected light metering with the iPhone camera. Set your film ISO and get aperture and shutter pairs, ready to dial into a camera with no working meter. YOUR CAMERA COLLECTION Keep every SLR, rangefinder, TLR and medium format body in one place, with deviation charts by speed, measurement history and before-and-after service comparison. Camera profiles and history sync between your devices with iCloud. KINEMETRON PRO Three camera profiles are free. One lifetime purchase adds unlimited cameras, PDF health reports, before/after CLA comparison, CSV export and alternate app icons. Measurement accuracy is never locked behind Pro. HONEST LIMITS Kinemetron is a screening tool, not calibrated service equipment. The microphone cannot resolve fast shutters, and camera mode cannot measure curtain travel or exposure evenness. Verify important results with a specialist shutter tester. PRIVATE BY DESIGN All audio and camera frames are analyzed on your device. No account, no tracking, nothing sent to us. Optional iCloud sync stays in your own iCloud account.