Monthly Archives: May 2019

The hole in NCR 11

This gallery contains 13 photos.

From Cambrigde to Ely by bike on the death trap A10 is 17.5 miles. On light traffic roads and paths National Cycle Route (NCR) 11 it is 21.5 miles. But there is a snag: National Route 11 follows the traffic-free … Continue reading

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MP2 Swath size

There are probably better ways of getting a handle on how high to fly the Mavic Pro2 but seeing the numbers is how I like to work, the sequence of scales is obvious and the ceiling of 120m AGL is … Continue reading

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Mavic Pro 2: GSD & map scale

This gallery contains 6 photos.

The relationship between GSD and map scale is simple in theory but the practice of getting sharp ortho results such that they function as a photo-map is not so straightforward. From the excellent Pix4D support pages: The printing scale indicates … Continue reading

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Mavic Pro 2 GSD=8mm

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The Mavic 2Pro’s L1D-20c camera has photogrammetric potential. To establish flight parameters for 1:200 scale mapping with it an effective minimum ceiling and shot interval need to be tested. In theory this is a simple application of the photo-scale equation … Continue reading

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