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Showing results for tags 'IR'.
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I am using a Sony a7r2 with the 16-35 f4 and have a weird issue with triggering the camera with IR on a drone I can trigger the camera with infra red if it’s handheld or on a tripod but as soon as I place it on my gimbal it will only fire in manual focus mode. I’m using a servo to trigger an infra red and if I tilt the camera down about 45 degrees the camera will fire in autofocus, however if I tilt it up it won’t fire. I have tried every setting imaginable and also shielding the IR with no success. I am using the exact same set up that I had with a Sony A7R, it fired every time in autofocus with the Sony A7R, but not with the Sony A7R2, I’m forced to use manual focus.
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I am a keen infrared image maker and recently jumped ship from Canon to Sony. One of the reasons for this was the access to full frame mirrorless as I love my wide angle lenses for infrared. The problem is that I am having trouble finding suitable full frame lenses suitable for IR as most of the Sony lenses have "hotspots". I have tested a few lwnses and visited most "infrared" knowledge articles on the web based around camera company modifiers and infrared groups. The list of suitable Sony lenses seems quite limited so I have started experimenting with other brands and adapters. Is there anyone else out there in infrared world that we can discuss what we have learnt? May even try and post a list of lenses but this will take time and money to test and develop. To see some infrared images visit my infrascapes gallery at - http://markd.photography/markd/digartal-colour-places/ , although most of these are pre Sony but the gallery will expand as I have 3 Sony Aphas and 2 are infrared. Thanks. Mark