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Canon 135mm f/2L + EF Extender III 1.4X

This page shows how the 1.4X extender performs on the demanding mosaic target.

Note that the two zooms are being used as reference lenses by themselves without the 1.4X extender, the goal being to see how well the 135/2L + 1.4X can perform against the zooms.

Test scene

Reproduction ratio and positioning are not exactly the same between the combinations tested, but they are plenty close for comparison of relative quality; we’re looking here for contrast and consistency throughout the frame.

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Since 2006, Diglloyd Advanced Photography is the authoritative review and reference for DSLRs and their lenses: Canon and Nikon primarily, but also Pentax and some medium format. Reviews of key DSLRs are included, but the primary focus is on lens performance. Also included is a wealth of technique and workflow approaches.

DAP includes thousands of pages of exclusive coverage and high resolution Retina-grade examples detailing Canon and Nikon DSLR bodies and their lenses, with in-depth analysis of sharpness and contrast, color, bokeh, vignetting, distortion, MTF, and flare, behavioral and practical usage.

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