Porst Super Tele 240mm F4.5:

A vintage M42 lens. Porst lenses were manufactured in East Germany, but during later years, some models were manufactured in Japan. Our copy is a German version. We found this to be an excellent quality lens, despite it's age. It is reasonably sharp wide open, tack sharp from F8 upwards, and we have yet to encounter Chroma in any picture. 

They are quite rare, and this is the only 240mm one we came across during the past 4 years. 

Sample Photos:

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