Recent content by gmaronson

Either 800 or 1600. The Cokin filter is whatever the equivalent of a conventional (e.g., Tiffen) R72 filter. Don't have it in front of me. Oddly, some of my photos don't show the hot spot.

INFRARED photo taken from Spark with my custom-made IR filter. Some post-processing done with Photoshop (e.g., remove red cast, increase contrast).

I bought a Cokin rectangular IR filter (I forget its number--I'm away from home right now; it's equivalent to the R72) and cut it down to about 14x17 mm. I'd purchased a set of Spark filters including ND and Polarizer. The first set I bought attached to the Spark lens with a method I found...

Thanks for your thoughtful reply! I'm aware of the IR conversions, but, as you might imagine, that's not a high-demand thing for drone photography! I've since posting learned that these "hot spots" are caused by infrared light bouncing around inside the lens apparatus. It's worse at smaller...

Here's a much better example of what one can do with infrared black and white. And the beauty part is that this kind of photography works best at times when conventional photography can be dull and uninteresting: when the sun is practically overhead.

I meant to add that I'd be glad to share my knowledge of infrared if I can make this work through my Spark. Some knowledge of Photoshop or similar editing program is necessary to create the useable image.

It's become an important part of my photographic repertoire on the ground. Now that I'm beginning to fly my Spark, I am anxious to able to continue this from an aerial perspective. I can explain the technical stuff another time, but here's my problem. In order to just let just infrared rays...