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This bokeh effect is known as (soap) bubble bokeh. Along with a "glowing" look, this type of bokeh is seen in lenses that have over-corrected spherical aberration. It is associated with Cooke Triplet lenses, which have three elements in three groups. Myer-Optik Trioplan lenses, such as the 100mm F2.8, are particularly known for their bubble bokeh.

Here is a sample taken with the T-22 40mm F4.5 triplet lens found in Smena cameras.

Further reading:

• The cult of bokeh, soap bubbles, and a cheap Meyer Optik Trioplan lens

• Trioplan 100mm f/2.8 Rebirth will Bring ‘Soap Bubble’ Bokeh to Modern Cameras

• The Legend And the Bubble Bokeh. Review of the Meyer Optik Goerlitz Trioplan 100mm f/2.8

• Markus Keinath: Soap Bubble Bokeh Lenses

This bokeh effect is known as (soap) bubble bokeh. Along with a "glowing" look, this type of bokeh is seen in lenses that have over-corrected spherical aberration. It is associated with Cooke Triplet lenses, which have three elements in three groups. Myer-Optik Trioplan lenses, such as the 100mm F2.8, are particularly known for their bubble bokeh.

This image, taken with a Steinheil-Munchen Cassarit 50mm f/2.8, demonstrates both bubble bokeh and glow.

Further reading:

• The cult of bokeh, soap bubbles, and a cheap Meyer Optik Trioplan lens

• Trioplan 100mm f/2.8 Rebirth will Bring ‘Soap Bubble’ Bokeh to Modern Cameras

• The Legend And the Bubble Bokeh. Review of the Meyer Optik Goerlitz Trioplan 100mm f/2.8

• Markus Keinath: Soap Bubble Bokeh Lenses

The effect is known as (soap) bubble bokeh. Along with a "glowing" effect, this type of bokeh is seen in lenses that have over-corrected spherical aberration. In particular, Cooke Triplet lenses, which have three elements in three groups, demonstrate this effect. Myer-Optik Trioplan lenses, especially the 100mm F2.8, are known for their bubble bokeh.

For further reading:

• The cult of bokeh, soap bubbles, and a cheap Meyer Optik Trioplan lens

• Trioplan 100mm f/2.8 Rebirth will Bring ‘Soap Bubble’ Bokeh to Modern Cameras

• The Legend And the Bubble Bokeh. Review of the Meyer Optik Goerlitz Trioplan 100mm f/2.8

• Markus Keinath: Soap Bubble Bokeh Lenses

Here is an example taken with the T-22 40mm F4.5 triplet lens found in Smena cameras.

This bokeh effect is known as (soap) bubble bokeh. Along with a "glowing" look, this type of bokeh is seen in lenses that have over-corrected spherical aberration. It is associated with Cooke Triplet lenses, which have three elements in three groups. Myer-Optik Trioplan lenses, such as the 100mm F2.8, are particularly known for their bubble bokeh.

Here is a sample taken with the T-22 40mm F4.5 triplet lens found in Smena cameras.

Further reading:

• The cult of bokeh, soap bubbles, and a cheap Meyer Optik Trioplan lens

• Trioplan 100mm f/2.8 Rebirth will Bring ‘Soap Bubble’ Bokeh to Modern Cameras

• The Legend And the Bubble Bokeh. Review of the Meyer Optik Goerlitz Trioplan 100mm f/2.8

• Markus Keinath: Soap Bubble Bokeh Lenses

The effect described is known as (soap) bubble bokeh. It is a feature, along with a "glowing" effect, of lenses that follow a Cooke Triplet design, which has three elements in three groups. Lenses of focal lengths ranging from wide to telephoto may exhibit the effect to varying degrees. In particular, Myer-Optik Trioplan lenses, especially the 100mm F2.8, are known for their bubble bokeh.

Another triplet lens is the T-22 40mm F4.5 attached to Smena cameras. The lens is screwed onto a plate that is screwed onto the camera body.

Several pages describe lenses that can cause this effect:

• The cult of bokeh, soap bubbles, and a cheap Meyer Optik Trioplan lens

• Trioplan 100mm f/2.8 Rebirth will Bring ‘Soap Bubble’ Bokeh to Modern Cameras

• The Legend And the Bubble Bokeh. Review of the Meyer Optik Goerlitz Trioplan 100mm f/2.8

The effect is known as (soap) bubble bokeh. Along with a "glowing" effect, this type of bokeh is seen in lenses that have over-corrected spherical aberration. In particular, Cooke Triplet lenses, which have three elements in three groups, demonstrate this effect. Myer-Optik Trioplan lenses, especially the 100mm F2.8, are known for their bubble bokeh.

For further reading:

• The cult of bokeh, soap bubbles, and a cheap Meyer Optik Trioplan lens

• Trioplan 100mm f/2.8 Rebirth will Bring ‘Soap Bubble’ Bokeh to Modern Cameras

• The Legend And the Bubble Bokeh. Review of the Meyer Optik Goerlitz Trioplan 100mm f/2.8

• Markus Keinath: Soap Bubble Bokeh Lenses

Here is an example taken with the T-22 40mm F4.5 triplet lens found in Smena cameras.