iOptron Optical Polar Scope vs Hyperfocal Pro

This is an app to show the position of the Pole Star (Polaris in Northern Hemisphere, or Sigma Octantis in Southern Hemisphere) in the polar scope of all the iOptron(R) telescope/camera mounts. The app uses the best algorithm to calculate the position of Pole Star: The algorithm calculates 3D space motion of the Pole Star itself, precession, temperature and barometric pressure corrected atmospheric refraction, nutation, parallax, aberration, and etc.). The overall accuracy of the algorithm has reached sub 0.1 arc-seconds now. The app now using a 10 minute marker reticle, the same reticle used in the polar scope of iOptron(R) telescope mount since 2014. A must have for iOptron(R) SkyGuider Pro, iOptron(R) SkyTracker Pro, SkyGuider and SkyTracker users! Also very helpful for any iOptron(R) telescope mount owners. It may also be used with other brand telescope/camera mounts with similar polar scope reticle. No human interaction required when iOS devices can using location service normally. iOS users can manually enter the location when location service is unavailable.

Know exactly where to focus. Hyperfocal Pro is a hyperfocal distance and depth of field calculator for photographers who want front-to-back sharpness without the guesswork. Set your focal length, aperture and sensor size to get the hyperfocal distance instantly. Add a focus distance to see the near limit, the far limit and the total depth of field for the shot in front of you. WHY PHOTOGRAPHERS USE IT • Focus once and keep the scene acceptably sharp from the foreground to infinity • See how aperture, focal length and sensor size change your depth of field • Stop guessing where to focus when the light is changing fast • Get to know your lenses before you leave home WHAT YOU CAN CALCULATE • Hyperfocal distance for your focal length and aperture • Depth of field (DOF) and total focus range • Near focus limit and far focus limit • Focus distance for your subject • Circle of confusion for your sensor size BUILT AROUND YOUR CAMERA • Focal length selection • Aperture (f-stop) selection • Camera sensor size selection WHO IT IS FOR • Landscape photographers who need sharpness from the nearest rock to the horizon • Street photographers who pre-set focus and shoot without waiting for autofocus • Architecture and travel photographers who want the whole scene in focus • Students and enthusiasts learning how depth of field really works • Experienced photographers who want a fast, reliable answer in the field WHEN IT HELPS • Choosing where to focus for a wide landscape • Checking whether a foreground subject and the background will both be sharp • Comparing apertures before you commit to a shot • Planning a lens choice for a trip or a shoot LIFETIME PREMIUM Unlock the full app with a single Lifetime Premium purchase. Pay once and keep it. No subscription. Download Hyperfocal Pro and set your focus with confidence. Privacy Policy: https://chatlyst.in/privacy.html Terms & Conditions: https://chatlyst.in/tcondition.html