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LExp - Long Exposure Calcs

Name: LExp - Long Exposure Calcs
Availability: InStock
Rating: 4.46 (100 reviews)

Eliminate the guesswork and master your long exposures. From stacking ND filters to tracking the Milky Way, get the perfect shot with the ultimate all-in-one field toolkit.

Photography Apps ›

Key Figures

Downloads

132K+

User Rating

4.5/5

Total Ratings

100

Publisher

Ilya Genkin

Precision Tools for the Patient Photographer

Eliminate guesswork and technical friction with a specialized toolkit designed to help you nail every exposure, from high-noon landscapes to midnight star trails.

Advanced Exposure Calculations

No more mental math in the field. Instantly calculate shutter speeds for stacked ND filters, Grad NDs, and reciprocity failure for film like Velvia 50.

Astro & Light Tracking

Perfectly time your shoot with data for golden hours, blue hours, moon phases, and Milky Way positioning for any location on Earth.

The following screenshots and description are sourced directly from the app's official store listing and are the property of the app developer.

App Store

Screenshots

LExp - Long Exposure Calcs - Main menu of the LExp app showing long exposure calculators and reference guides for photographers — Main menu of the LExp app showing long exposure calculators and reference guides for photographers

LExp - Long Exposure Calcs - Sun direction and sunrise sunset tracker map in LExp app — Sun direction and sunrise sunset tracker map in LExp app

LExp - Long Exposure Calcs - LExp app Magic Hours screen showing sunrise sunset blue hour and moon phase timings — LExp app Magic Hours screen showing sunrise sunset blue hour and moon phase timings

LExp - Long Exposure Calcs - LExp app screen showing long exposure calculation for stacking two ND filters with a shutter speed of 3 minutes and 40 seconds — LExp app screen showing long exposure calculation for stacking two ND filters with a shutter speed of 3 minutes and 40 seconds

LExp - Long Exposure Calcs - LExp app showing Milky Way and still stars long exposure calculation. — LExp app showing Milky Way and still stars long exposure calculation.

LExp - Long Exposure Calcs - Interface of the Moon Photography calculator within the LExp app showing shutter speed and camera settings — Interface of the Moon Photography calculator within the LExp app showing shutter speed and camera settings

LExp - Long Exposure Calcs - LExp app Star Trails calculator screen showing settings for a 200 minute session with 400 frames and a 50 degree track length. — LExp app Star Trails calculator screen showing settings for a 200 minute session with 400 frames and a 50 degree track length.

LExp - Long Exposure Calcs - LExp app screen showing an Aurora Borealis exposure calculation of 4 seconds for ISO 1600 and f2 — LExp app screen showing an Aurora Borealis exposure calculation of 4 seconds for ISO 1600 and f2

LExp - Long Exposure Calcs - Interface of the LExp app showing solar eclipse shutter speed calculations with ISO and f-stop settings. — Interface of the LExp app showing solar eclipse shutter speed calculations with ISO and f-stop settings.

LExp - Long Exposure Calcs - LExp app screen for Sun in the Frame calculator showing solar eclipse exposure settings — LExp app screen for Sun in the Frame calculator showing solar eclipse exposure settings

Description

LExp or Long Exposure Calculators is a must-have app for any landscape photographer who is shooting with ND filters or with long exposures or at night. All important calculators, reference tables and cheat sheets in one place. Select your shooting parameters and the app will do the rest for you! CALCULATORS: • Magic Hours for Current Location - sunrises, sunsets, twilights, golden and blue hours, and moon phases and times. • Sunrise, sunset and sun direction for any day at any location. Instantly see how sunrise and sunset positions change throughout the year. Civil, nautical, astronomical twilight times. Elevation and azimuth of the Sun. Shadow ratio. • Stacking ND Filters: Need to stuck multiple ND filters? It's really easy now. • Graduated ND Filters: Not sure what Grad ND filter to use? Simply measure exposure for the sky and for the foreground and get the right answer. • Moonlight/Nightscapes: Helps you get the right exposure for landscape photography under moonlight. • Moon Photography: Calculates right exposure for the Moon under different conditions and focal length. • Star-trails: Want to capture beautiful start trails? Get the right number of shots for stacking them later. • Milky Way/non-moving stars: Helps you capturing beautiful Milky Way galaxy and starry sky without star trails. • Velvia 50: Still shooting film and worries about reciprocity failure? This calculator is for you. • Recalculate Exposure: From one set of ISO, aperture and shutter speed to a different set ISO, aperture and shutter speed. • Aurora Borealis Photography: Calculates the right exposure for shooting Aurora Borealis/Australis. • Shutter Speed Calculator for Solar Eclipses. Calculate shutter speed for different phases of solar eclipse with and without ND filters. • Shutter Speed Calculator for Lunar Eclipses. Calculate shutter speed for different phases of lunar eclipse. REFERENCE TABLES: • Neutral Density ND Filters Reference Charts / Cheat Sheets • Shooting Flowing Water Reference Charts / Cheat Sheets • Shooting Fireworks Reference Charts / Cheat Sheets • How to locate North and South Celestial Poles • Useful resources and links on low-light and night photography FEATURES: • Built-in Timer. Some calculators have built-in timer for your convenience. It is automatically enabled when your exposure is 30 seconds or more. • Alarm in Timer: You will be notified at 20, 10, 5 and 0 seconds when you are using countdown/timer. • Favourite Calculator: Lock your favourite screen for quick access when you opening the application. • Additional Info: Almost every calculator has some additional information about filters, used formulas, techniques etc. If a calculator is just a table than additional info is located below the table. NOTES: • Maps require data connection. • Please ensure that Compass in the System Settings on your device is switched ON. The app will work more accurately with it. • The Compass accuracy can be affected by magnetic or other environmental interferences. LIMITATIONS OF LITE VERSION: • Only reference tables, cheat sheets and useful recourses are available. • No timers. SUPPORT: This application has been built by a photographer for photographers. Please don't hesitate to contact me if you found a bug or have a suggestion. Your feedback is very important!