ISCO Iscovitar 50/2.8: Samples [2] - FF - f/2.8 - Two types of focusing

Camera: Sony a7c (FF, 24MP)

Lens: ISCO Iscovitar 50/2.8 at f/2.8

The ISCO Iscovitar 50/2.8 has a simplified focusing mechanism. Only the front optical element moves. So, like the Riconar/Rikenon 55/2.2, two types of focusing can be used: with the built-in mechanism or with the lens adapter. See more details.

There are comparisons between these the two types of focusing.

1.

(lens focusing)

(adapter focusing)

2. 

(lens focusing)

(adapter focusing)

3.

(lens focusing)

(adapter focusing)

See also related notes:

• ISCO Iscovitar 50/2.8 (M42x1/45.5): Triplet with simple focusing mechanism (2024-05-21)
• Riconar/Rikenon 55/2.2: Two types of focusing and background blur (2023-11-27)
• Noname Leica M-Sony FE/E close focus (helicoid) adapter (2023-07-30)
• Riconar/Rikenon 55/2.2 (K): It's not a triplet (2023-06-21)

Image albums:

• ISCO-Göttingen Iscovitar 50/2.8