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This is a comment on "Guiding, Focusing, and Sensing on the SubwavelengthScale Using Metallic Wire Arrays" by G. Shvets, S. Trendafilov, J. B. Pendryand A. Sarychev published in Phys. Rev. Lett. 99, 053903 (2007), whichdemonstrates that the endoscope proposed in the letter does not demonstratesatisfactory subwavelength imaging performance.

Comment on "Guiding, Focusing, and Sensing on the Subwavelength Scale Using Metallic Wire Arrays"