Takumar 105/2.8 series: 4/4 vs 5/4 designs [2]

This is a continuation of the comparison of 4/4 vs 5/4 designs of the Takumars 105/2.8. The Auto-Takumar 105/2.8 (4 elements in 4 groups) and the Takumar Pre-Set II (5 elements in 4 groups).

Does the 4/4 design give a nicer background blur, as is often said? I am not sure. Also it looks like the 5/4 design is more resistant to flare, probably because of changes in the lens coatings.

1. 4/4 design:

5/4 design:

2. 4/4 design:

5/4 design:

3. 4/4 design:

5/4 design:

4. 4/4 design:

5/4 design:

See also related notes:

• Takumar 105/2.8 series: 4/4 vs 5/4 designs [1] (2024-05-18)

Image albums:

• Auto-Takumar 105/2.8
• Takumar 105/2.8 (II)