The Sonnar series of lenses evolved fairly rapidly in the 1930s. Every year seemed to bring a change in the mechanical construction, materials used, and optical formula. In 1935 Zeiss brought in the equipment to apply coatings to optics. By 1938 coated lenses were marked with a "T" for...
I saw this on Leicarumors, had to check it out.
This company is offering Professionally Done conversions for lenses that I've hacked out on my desk.
They also offer adjusted Jupiters.
I've inquired whether they...
I'm sure this is one for Brian; I'm just wondering what the provenance of this clearly fake lens on EBAY at the moment (401817586358); the Leica - Sonnar 5.8cm f1.5.
I found a few threads in other forums but non seemed conclusive. Does anyone recognise the bits?
Took a chance on what was described as badly scratched lens only to find a few whispy cleaning marks. I love it when sellers over emphasize the flaws! Only real bummer was the dent in the filter ring.
And now for some pics!
Hello, I have a wartime CZJ Sonnar 5cm f1,5 in Leica Thread Mount serial # 2870001 which seems to date it approx. from 1942. I need advice on how to unscrew the optic module to check for matching serial numbers and perhaps determine it's authenticity. I am loathe to dismantle/damage the lens due...