I built a new buzzer for photo booths. The new case is even more stable than its predecessor. As a bonus, it allows charging two AA cells independently without opening the case. The receiver is implemented using a Yongnuo RF-603. It may be expanded with a USB-dongle that emulates a left mouse click or hitting a key on a keyboard.
I performed tests to power Olympus cameras (OM-D E-M1) from a 5 V source. The voltage of 7.5 to 7.6 V required by the camera was delivered by a DC-DC step-up converter.
In general, powering a camer this way is possible. I just couldn’t find a power source yet that allows to drive the camera without restrictions. Even a wall wart delivering 2 A maximum current wasn’t enough to get single frame pictures at a decent pace. Too short image intervals caused troubles saving the taken pictures. Common USB chargers won’t drive the camera even in idle mode.
Maybe a power source delivering 2.5 or 3 A may do the trick. I couldn’t verify it yet.
I have selected a couple of pictures of my recent trip to the Sudan. They may be seen here in my gallery.
I am still searching for the wreck of the Aurora, lying at Wingate Reef. As far as I know, she sank on November 23rd 2004 during a storm. She is reported to lie at about 20 meters depth in the vicinity of the Umbria. The image shows the Aurora on her last trip in October 2002.
I am glad about any hint leading me to the exact position of the wreck. If you know about the wreck, please tell me through my contact form.
I selected a couple of pictures from my expedition to Mount Licancabur to be shown in my gallery. Althoug we didn’t succeed in reaching the summit and diving the crater lake, the trip left deep and vivid impressions. We’ll have a second try for sure.
I was diving the area south of Port Sudan towards the Eritrean border. I used the trip to test dive computers and to do some research on the position of a wreck I’m looking for. Pictures of the trip will be shown in the gallery soon.
I have been on an expedition in South America. We wanted to dive a crater lake at 5900m altitude to test outdoor and diving equipment. Sadly, the weather was too bad to achieve our goal. Nevertheless, I had a great time in Bolivia and Chile. During the next few days, I will process pictures from the trip and upload them to a gallery on this site.
After a series of tests I have built a BLH-1 battery dummy for Olympus cameras (currently the OM-D E-M1 Mark II). Since the battery is larger than other models, the lid of the battery compartment is also bigger. This allows to cut a slot for the cable to pass through while the lid is closed. You shouldn’t do this to the original lid. That’s why I currently try to get spare battery compartment lids for the camera.
I have been to Indonesia in November 2016 for six weeks. Finally, I managed to weed out my pictures and select a few for display. I created three galleries representing the areas of Lembeh, Raja Ampat and Halmahera.