GeoKit for Photographers – demo video

This demo video of GeoKit was originally made for reviewers and media. It shows all the functions of GeoKit at a glance so we make it public now. https://www.mirekelsner.com/video/geokit.mp4   You can get copy of GeoKit for Photographers on the Apple AppStore.  

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GeoKit: Photography or Transit Mode?

Which mode is best for geotagging? It depends on your activity. Photography Mode Photography Mode collects location data very frequently and with best possible accuracy. It impacts battery life and should be used only when the photographer is actively taking pictures....

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GeoKit for Photographers: Finished

GeoKit for Photographers is an iOS app for photographers with cameras that do not have built-in GPS but want their images geotagged. In a typical workflow photographers start the app, put the phone in their pocket and take pictures....

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What is coming in Digital Photo Calculator v.3?

DPC is long overdue for update and the new version is coming out soon with many improvements. What is coming? There are major improvements notably in the user interface design, in the Sun and Moon module and in the...

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Camera profiles for Lightroom and ACR

Adobe DNG Profile Editor and X-Rite ColorChecker Adobe DNG Profiler is available as a free download from Adobe.com. It can be used with regular X-Rite Color Checker Classic, X-Rite Color Checker Mini and with the 24-patch target of X-Rite Passport. X-Rite...

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SD card to computer performance

This post is a brief overview of read and write performance of several SD cards that may be of interest to photographers with cameras that do not take advantage of high performance of the latest SD cards, but who have newer computers with...

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Leica M startup delay

Most mid-level or better digital cameras have a negligible startup delay of around 0.2 seconds. Alas, Leica M startup delay is often measured in seconds, which may be a problem for some shooters and scenarios. Photographers on Leica related...

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Chromatic Aberration Removal in Lightroom

Lightroom 4.1 introduces new CA removal tool that addresses all types of chromatic aberration. The tool is very easy to use and does really good work. You can select automatic correction, use color picker to select the fringe color(s)...

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Joseph Nicéphore Niépce

The earliest known permanent photograph is the View from the window at Le Gras by Nicéphore Niépce. The photograph was exposed by camera obscura on bitumen coated plate. Bitumen is sensitive to light, but not much. Eight hour exposure...

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Canon EF 70-200mm f/4 L IS USM vs. EF 70-200mm f/2.8L IS II USM

There are many great reviews of those lenses, some links are provided at the end of this post. Focus of this non-scientific mini test is to add information  how the two lenses compare in aspects that I did not...

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Crop factor and DOF

Factors impacting depth of field (revised) Depth of field  (DOF) is impacted by the following factors: Factor Details Aperture The wider the aperture opening, the narrower is the depth of field. Focal length The longer the focal length, the narrower the DOF. Camera to subject distance Sorter distances...

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Redeeming App Store codes

Did you receive codes for free app download from the App Store? Here is how to redeem the codes from your device. Open the App Store app Go to the Featured tab Navigation bar on the top should now show New button Scroll...

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