Cleaning the Miranda Sensorex focus screen

My recently acquired Miranda Sensorex has a few of issues which I need to put right including re-greasing the lens and some general clean up and lubrication but the first issue I wanted to address was the muck and dirt on the focusing screen. I wanted to look at this first because it was really bad and made trying to focus a difficult task so this post covers the process I used to clean the Miranda Sensorex Focus screen. I […]

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Carl Zeiss Jena 50mm f/2.8 strip down and clean

I received another camera and lens combination a couple of days ago – a Praktica LB fitted with a Carl Zeiss Jena 50mm f/2.8 zebra lens. When I received it the focus ring was completely locked and the aperture wouldn’t close so this seemed to be another ideal candidate for a ‘strip down and clean’ post. It turned out this was a considerably more complex problem than the last lens I took apart and cleaned¬†although I’m pretty sure that it’s […]

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Stripping and cleaning a Pentacon electric 50mm f/1.8

This week I made another purchase for my Nex 6 in the form of a Pentacon Electric 50mm f/1.8 prime lens. It actually came attached to a Praktica PLC3 slr which I purchased as ‘For spares or repair’ from e-bay for ¬£13. When I received the camera I found that the description was quite accurate! The body is in reasonable condition but the shutter speed selection and the iso setting are not working properly, and when I tried to adjust […]

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