Triplet 2.8/78 Review

04/02/2015 - 16:21
Triplet 2.8/78 Review




"Triplet" is the name of the optical design, which invention in the late XIX century helped reduce the cost of lens production, and accordingly the spread of photography in general. Since everyone can afford to buy an inexpensive camera. In the Soviet Union, lenses with name “Triplet” produced for inexpensive amateur cameras and slide projectors.

There is a whole range of Cooke Triplet design lenses for overhead projectors. What are the most common:

Triplet 2.8 / 75

Triplet 2.8 / 78

Triplet-3 2.8 / 80

Triplet-5 2.8 / 100

Triplet-6 2.8 / 150

Triar-1 3.5 / 150

Triar-3 2.8 / 85

DM-3 2.8/78

All of them were produced with different barrel design and at different factories. So, review the Triplet 2.8/78. There is evidence that this lens conceals image circle for frame 6x6 cm, but for me, it’s not relevant. I'm going to use it on the DSLR camera with ASP/C sensor. Mechanically my lens perfectly assembled in the metal barrel, with a large hood, which protects it from the side light. The back side has a long tube with a screw thread, apparently using it in a slide projector could make the focusing. To mount the Triplet 2.8 / 78 on the camera it must be adapted.  

 

Triplet 2.8/78 Sample Photos

All photos RAW export without post-processing.  

 

Sharpness

The lens has a soft image, due to the spherical aberration. Therefore, it is more inclined to soft-focus lenses.Triplet 28/78 samples

100% crop of the previous image

Triplet 28/78 samples  

 

Character and Bokeh

The lens has a peculiar character and bokeh.

Triplet 28/78 samples

Out of focused points of light turned into circles.

Triplet 28/78 samples

Luminous points have halos like a magical glow.

Triplet 28/78 samples  

Triplet 28/78 samples

Triplet 28/78 samples

 

Contrast and Color Render

The lens has a normal contrast and well protected from the side light of his hood.

Triplet 28/78 samples

Example backlit Yet backlight afraid. If the lens has no constructive blend, it is recommended to do so.

Triplet 28/78 samples 

Triplet 28/78 samples 

 

Summary

Triplet 2.8 / 78 is an interesting lens. Suitable for creative ideas. If you want to get interesting bokeh and have no costs for Trioplan 2.8 / 100, try Triplet.

Triplet 28/78 samples





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