I got the first production grade adapter to mount teh VA-1 angle finder on the OM-D E-M5 II. It fits well and the visibility of the view finder is good. I have no experience yet, how the material will stand over time and usage. I used (first time) selective laser sintering (SLS) as production method for this kind of adapter.
With this adapter, the VA-1 may be mounted to yet another type of camera body.
Oh, yes. It can be done. I mounted a haida PRO II NC slim polarizer on my Olympus m.ZUIKO 7–14mm f2.8 lens. The filter has a diameter of 105 mm. Slight vignetting is still visible. The effect ist a bit strange when taking pictures of teh blue sky. It is quite promising when aiming at reflections. More tests will follow.
I designed an adapter to mount the VA-1 angle finder on the E-M5ii. During the next few days I will perform tests with the prototype. In case of successful tests I will produce a small batch of adapters.
I got a brand new dive computer a couple of days ago. It needs a certain number of operating hours in order to get the approval for public usage. I am therefore out and diving a lot. This may cause delays in answering requests. Please be patient.
The picture shows computers I got for testing a while ago. The current test devices are still top secret!
Who says, that you can’t mount a threaded filter on top of the Zuiko 7–14 mm f2.0 lens? With a filter diameter of 105 mm it is possible. I tested with the bare holder for vignetting. Up to now, the results are promising.
I designed and built a prototype on request. I couldn’t test the holder yet. None of the dealers in my vicinity stocks filters of that diameter. Since I wasn’t willing to spend more than 200 € for a quick test, I have to be patient. My customer will test the holder and I will report the results.
Polarizers are expected to produce strange effects when pointed at the sky. Nevertheless, they should remove reflections quite good across the whole image.
I made the BLN-1 battery cover available in my Shapeways shop. If you don’t have access to a 3D-printer you may order the cover at Shapeways. They will print the item in SLS and deliver it right to you. If the service is suitable for other projects, I will deploy them to my Shapeways shop.
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.