Lensbaby Burnside 35mm f/2.8 Review

Lensbaby Burnside 35mm f/2.8 Performance

Performance here is largely irrelevant, but in conventional terms of sharpness the centre of the image is good from f/2.8 to f/5.6 and very good from f/8 to f/16. The edges have no concept of sharpness throughout the range of apertures, falling as expected into the abyss of field curvature and vignetting. Which of course is what the lens design is all about.

How to read our MTF charts

The blue column represents readings from the centre of the picture frame at the various apertures and the green is from the edges.

The scale on the left side is an indication of actual image resolution as LW/PH and is described in detail above. The taller the column, the better the lens performance.

For this review, the lens was tested on a Canon EOS 5DS R using Imatest.


Central CA (Chromatic Aberration) is closely controlled centrally but becomes more evident at the edges. However, in the general melee of aberrations this becomes largely lost.

How to read our CA charts

Chromatic aberration (CA) is the lens' inability to focus on the sensor or film all colours of visible light at the same point. Severe chromatic aberration gives a noticeable fringing or a halo effect around sharp edges within the picture. It can be cured in software.

Apochromatic lenses have special lens elements (aspheric, extra-low dispersion etc) to minimize the problem, hence they usually cost more.

For this review, the lens was tested on a Canon EOS 5DS R using Imatest.

 

Distortion likewise is hardly the point, but it does measure at -1.91% barrel, a reasonable figure that is unlikely to be an issue in the context of the lens design in general.

Flare is somewhat odd, being generally quite well suppressed, but at certain angles becoming a multi-coloured patchwork in the darkest shadow areas.

Bokeh is of course at the core essence of the lens and as such is very distinctive and highly variable depending on subject, distances and lens control settings. It's all about the final effect and the performance is geared towards creative use in a way that largely defies the bald measurements.


 

 

Value For Money

The Lensbaby Burnside 35 lens is priced at £399 and is of course one of a kind. There are other Lensbaby creative lenses and also many other optics exploring areas other than sharpness, but all have their own individual signatures.

From perhaps the body mount lenses from Pentax, under £50, for the Q range and also from Olympus, to the £459 Lomography Petzval 85mm Art lens there is no shortage of individualistic lenses to try.

Against this backdrop, those looking for a 35mm lens of a general nature will likely find the Lensbaby very poor value. Those looking for a creative tool to make very specific styles of images may well find this is exactly what they need. At this point general concepts of VFM do really start to break down and opinions could be quite polarised.

 

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