Testseek.fr ont rassemblé 2 examens experts du Pentax HD P-DA AF 1.4X AW Rear Converter et l'estimation moyenne est 90%. Faites descendre l'écran et voyez les toutes les revues pour Pentax HD P-DA AF 1.4X AW Rear Converter.
(90%)
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Using the HD Pentax-DA 1.4x AW AF with the HD D FA 150-450mm yields an impressive effective maximum focal length. Optical performance remains comparable to that of the lens alone. The pair cannot be used in full frame mode but, apart from that, there is n...
Excellent build quality, Compact and light, Excellent image quality, better than upsampling, Supports autofocus (SDM and screw drive) with little or no performance degradation, Correct focal length (1.4x value set on lens) communicated to camera so shake
View finder autofocus (phase detect) is unreliable with lenses slower than F4 (live view should be used instead), Incorrect aperture in EXIF with Aseries lenses, Focal length not multplied on older DSLRs, Magnifies optical lens flaws, Relatively expensive
This rear converter is up there with the best in terms of optical quality. We can wholeheartedly recommend it in connection with quality lenses F4 or faster. The image quality with the converter beats upsampling a photo taken without it, so it's a no-brai...
