ND Filter Calc vs LutzNDI

A simple neutral density filter calculator for photographers. Has a count-down timer for shutter speeds of 3 seconds and above.

LutzNDI – Professional NDI® Video Monitor for iPad & iPhone Transform your iOS device into a professional broadcast monitor. LutzNDI is the ultimate NDI® video monitoring app for broadcast engineers, live production teams, streaming professionals, and video creators. Designed for studio-quality performance, it delivers real-time, low-latency NDI monitoring with advanced tools normally found only in expensive hardware systems. Whether you’re in a live control room, on location for multi-camera production, teaching broadcast workflows, or running a remote streaming studio, LutzNDI gives you the power, precision, and portability to monitor and analyze your NDI video sources—anywhere on your network. Key Features Professional NDI Video Monitoring Real-time discovery of all NDI sources on your local network Single Source Mode for full-screen, high-quality monitoring Multi-Source Grid Mode – View up to 4 NDI streams at once (2x2 layout) Picture-in-Picture (PiP) mode for main + preview feeds Low-latency streaming with adaptive bandwidth management Auto source detection via Bonjour / mDNS Studio-Grade Video Scopes (iPad Exclusive) Waveform Monitor for accurate luminance analysis RGB Histogram for precise exposure control Vectorscope for color accuracy & broadcast compliance RGB Parade for detailed channel separation GPU-accelerated Metal rendering for ultra-smooth 60fps scope updates Color Grading & LUT Support Real-time 3D LUT application with adjustable intensity Import custom .cube LUTs for on-set look management Built-in LUT presets for popular film and broadcast styles Hardware-accelerated color processing for zero lag Annotation & QC Tools Freeze any frame for technical review & annotation Draw overlays directly on paused frames Add safe area masks (action safe, title safe) and custom overlays On-screen performance metrics: FPS, resolution, connection quality Perfect For: Broadcast Engineers – Studio & OB truck monitoring Live Streaming Producers – Multi-camera control rooms Film & TV Production Crews – On-set reference monitoring Video Engineers – Signal quality checks & color analysis Post-Production Teams – Client review stations Houses of Worship – Affordable multi-camera monitoring Educational Programs – Teaching live production workflows Why LutzNDI? Replaces hardware monitors costing $5,000–$50,000 Portable – Use your iPad or iPhone anywhere on your network All-in-one solution – Multi-source, scopes, LUTs, overlays in one app Optimized for iOS – Metal-based rendering, smooth gestures, efficient memory use Proven Stability – Designed for long sessions without dropping frames