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Sample #6 @ 200mm + Canon 1.4X Extender (280mm)

This page shows the performance at 200mm with the Canon 1.4X EF Extender II, using sample #6, the best of 6 samples that I tested and that I now own as my personal copy.

Adding the 1.4X Extender II drops the maximum aperture to f/4, and increases the focal length to 280mm, for a 98-280mm f/4 zoom. I did not test shorter focal lengths, as in my view the loss of speed and quality at f/4 are simply not a good idea; the combination makes sense in order to extend the long end eg the 150-200mm range.

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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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