Excerpt: Canon offers a pair of 35mm primes in its EF lens range - the EF 35mm f/2.0 and the 35mm f/1.4L USM (Â£1159). Of the two, the EF 35mm f/2.0 is by far the more affordable, costing Â£942 less than its L-Series stablemate. It's also fully compatible with all Canon D-SLRs, whether they have the EF or the EF-S lens mount.
Canon EF 35mm f/2 (full format) - Review / Lens Test Report
23 March 2008
Conclusion: The Canon EF 35mm f/2 is an old lens design but it's still a good one. The center resolution is very high throughout the tested aperture range. The border quality is usable at f/2 to f/2.8 and more than decent from f/4 onwards. The amount of vignetting leaves something to be desired at f/2 and also at f/2.8. Lateral CAs aren't something to worry about - the same goes for the moderate level of barrel distortion.
Conclusion: The Canon EF 35mm f/2 may not be the most sexy lens around but its performance is generally very solid. The resolution is very high and evenly distributed across the image field even at max. aperture. The amount of vignetting leaves something to be desired at f/2 - 1.1 f-stops is too much for a full format lens within the tested APS-C scope. That said it's not an issue anymore from f/2.8 onwards.
Conclusion: Does this lens give us more than just a good equivalent of a kit lens set up at 35 mm? The answer is positive. Although the difference in the middle of the frame is not that great, at the edges the tested lens reaches much better results than zoom lenses. A better aperture of f/2.0 should be treated, however, as an emergency. Yes, we can take a picture but let’s not expect great results.
Cons: weak picture resolution near open aperture, large astigmatism, too large vignetting, loud and not very effective autofocus
Summary: W światku astronomicznym Vixen jest znany z dobrej jakości wyrobów i model Ultima 8x56 w pełni potwierdza tą opinię. Za 1100 zł dostajemy lornetkę, której wynik pozwolił zająć medalowe miejsce w naszym teście i to za takimi tuzami jak Swarovski i Docter, a wyraźnie powyżej wcześniej chwalonej Ecotone LD-II 8x56. Tu chyba jednak daje o sobie znać różnica w systemie pryzmatów o czym za chwilę.