James Owl Calc 4+
Your long exposure calulator
James Zhen Yu
Designed for iPad
-
- Free
Screenshots
Description
Version 2.4 delivers unprecedented calculation accuracy and lightning-fast performance for long exposure photography!
James' Long Exposure Calculator is the ultimate companion for landscape photographers seeking to master the art of long exposure photography. Designed by professional photographer James Yu, this powerful tool eliminates guesswork and transforms your creative vision into precise camera settings.
Whether you're capturing silky smooth waterfalls, dreamy misty seascapes, or ethereal cloud streaks, this app delivers professional-grade calculations tailored to your specific equipment. Simply input your current settings and desired effect, and the advanced algorithm will recommend the perfect ND filter combination, aperture, and ISO values to achieve stunning results every time.
Key features include:
Precise exposure calculations for any ND filter strength
Reverse calculation mode - start with your desired exposure time
Smart adaptive technology that accounts for changing light conditions
Built-in countdown timer with audio alerts
Camera-specific settings for maximum accuracy
Detailed tutorials for various long exposure techniques
Clean, intuitive interface designed for field use
The app supports all major camera brands and ND filter types, from ND8 to ND64000. Take your long exposure photography to the next level with James' professional insights and techniques refined through years of experience.
Whether you're a beginner exploring long exposure or a seasoned professional seeking efficiency, James' Long Exposure Calculator provides the precision and guidance you need to create breathtaking images that stand out from the crowd.
What’s New
Version 2.4
What's New:
Complete Algorithm Engine Overhaul
- Fixed critical calculation vulnerabilities for 100% crash-free operation
- Optimized ND filter combination algorithm with 60% faster processing
- Enhanced floating-point precision for pixel-perfect exposure calculations
Massive Performance Boost
- Smart early-exit mechanism for instant complex calculations
- O(n²) algorithm optimization supporting unlimited filter combinations
- Reduced memory footprint for silky-smooth operation
Rock-Solid Reliability
- New input validation system prevents unexpected crashes
- Perfect edge case handling for any shooting scenario
- Advanced error recovery ensures the app never freezes
Premium User Experience
- Magic number cleanup for faster UI response
- Refactored code architecture for bulletproof stability
- Intelligent error messages with helpful suggestions
The Professional's Choice for Long Exposure
Whether you're a landscape photography enthusiast or professional photographer, LongExpoOwlCalc 2.4 provides:
- Precision ND Filter Calculations - Single/dual filter combinations
- Intelligent Exposure Compensation - Auto aperture/ISO optimization
- Built-in Countdown Timer - Perfect exposure timing control
- Photography Effect Predictions - Waterfall, cloud streaks, wave effects
Why Photographers Love It:
"The most accurate ND calculator I've ever used!" - Featured Photographer
"Finally, a tool that understands real-world shooting conditions." - Landscape Pro
"Version 2.4 is a game-changer for my long exposure workflow." - Nature Photographer
Download Now
This is our most stable, fastest, and most precise version yet!
Get LongExpoOwlCalc 2.4 and turn every long exposure into a masterpiece!
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Bilingual Support | Universal iOS Compatibility | Recommended by Professional Photographers
App Privacy
The developer, James Zhen Yu, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.
Data Not Collected
The developer does not collect any data from this app.
Privacy practices may vary based on, for example, the features you use or your age. Learn More
Information
- Provider
- James Zhen Yu
- Size
- 34 MB
- Category
- Photo & Video
- Compatibility
-
- iPhone
- Requires iOS 16.0 or later.
- iPad
- Requires iPadOS 16.0 or later.
- Mac
- Requires macOS 13.0 or later and a Mac with Apple M1 chip or later.
- Apple Vision
- Requires visionOS 1.0 or later.
- Languages
-
English, Simplified Chinese, Traditional Chinese
- Age Rating
- Learn More
- Copyright
- © James Photography Pty Ltd
- Price
- Free