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ThreeBeach製　500mm F8

This cheap lens was sold around 1980.

I bought used one by net auction in August 2016.

This lens consists of 3 groups 4 elements. All of them are amber color coated.

There are two aperture rings. One of them presets F number. The other moves aperture blades. I feel this operation is complex. I hope only one aperture ring.

2016.10.16  三重県津市 Tsu City, Mie Prefecture

F8  non-filter    PanasonicG5  1/2000s  ISO1600

2017.01.02  京都府与謝野町　Yosano Town, Kyoto Prefecture

F8  non-filter    PanasonicG5  1/1300s  ISO1250

Violet fringe of chromatic aberration is not seen.

2020.08.10  愛知県豊橋市　Toyohashi City, Aichi Prefecture

F8  non-filter    PanasonicG5  1/3200s  ISO1000

Violet fringe of chromatic aberration is not seen.

（最後）２０２０年８月１０日の撮影を最後に廃棄しました。