Drone head/ KAP head

This gallery contains 6 photos.

I am a little surprised at how operating SUA has changed my approach to low level aerial photography. In theory, with a drone I can wait for the light, launch, shoot and bag the frame I want. In practice this … Continue reading

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Scan to plan…working with low density SLAM data

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Low density data is often the name of the game with laser scan surveys and as SUA cover and simultaneous location and measurement (SLAM) systems emerge the dreaded dot to dot drawing game gets unavoidable. ZebRevo will soon have serious … Continue reading

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The hole in NCR 11

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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

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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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TheoLt on TS15 Viva

This gallery contains 19 photos.

There are 3 elements to setting up the coms. Preparing the TS15 Connecting TheoLt to the TS15 Achieving the connection to CAD This post deals with the first 2 elements, the connection to CAD will wait for another day.. Step … Continue reading

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Why KAP is different to SUA photography

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Positioning a camera by kite is a straight forward affair. You can either get over your subject or you can’t. The camera lies on the path between you and the kite and although catenary or slack line comes into play … Continue reading

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Instrumenta Eccesiastica 1847

This gallery contains 7 photos.

The Ecclesiological (late Cambridge Camden)  Society published working drawings of church fittings. Here is a selection of 7 of the plates, full size scans are available on application by email.

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L1D-20c at 50m AGL

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At 50m AGL GSD is 1.17 cm/px f4, iso 100, 1/100th 120% screen grab: B

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