I finally put together the 3D printed prototype and took a few photos last weekend. The flange distance was way off and it was quite hard to get the right focus. The CCD had quite a few dirt specks on it and it produced this weird streaking pattern when using a a small aperture. Also the sensor saturates easily, leaving lots of white streaks and artifacts. Nevertheless I was excited that I could finally fit it on my Bronica medium format camera body.
Read MoreTag: SSC7926
We have made lots of progress on our linear CCD project since the last article. Last week we spent some time and made a cardboard enclosure for the sensor and tired to take a photo. The good news is we did get a presentable photo, despite the obvious focus issue. The lens was a Nikkor 50/1.8 since the batteries in my Bronica were dead and the camera would not operate without it. The photo has a strong vignetting due to the lens’ small image circle. The camera was only a prototype, held together by hot glue and type. We will eventually design and 3D print an enclosure to house the […]
Read MoreJust a quick update. Today I built the linear CCD circuit on breadboard, more or less following the Application Circuit provided in the ilx508 datasheet. Everything went according to plan except for the reel of SMD transistors decided to jump out of the anti-static bag into a half-a-meter deep vent on the ground when I opened the bag. I ended up spending a significant amount of time trying to get my transistors back poking the vent with a wooden stick. You may tell there is one wire missing, but I expect to fix it next time when I get back to the lab. I’ll also try to power on the […]
Read MoreAfter weeks of planning, I finally got the chance to test my setup for SSC7926 project for the first time. I’ll probably explain what is SSC7926 all about in one of the future posts, but for the time being it is my attempt to make a digital back for my medium format Bronica SQ camera using an ilx508 linear CCD. I plan to use a Teensy 3.6 to generate clock signals to drive the CCD, and sample the analog output from the sensor. For this proof of concept test, I used the Carrier Modulator Transmitter (CMT) on the k66 chip to generate the clock signal. CMT interrupt ISR was set […]
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