Reviews written by Silvide

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Silvide
www.juzaphoto.com/p/Silvide

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Reviews of cameras, lenses, tripods, heads and other accessories written by Silvide

The following opinions have been automatically translated with Microsoft Translator.

Sigma AF 300mm f/4 APO HSM

Pros: Excellent optical quality especially from f / 5.6 onwards. Rugged construction with finishing Zen that over time does not tend to deteriorate as the EX finish. Built-in hood. Detachable collar and well conceived, can be rotated 360 °. The 'AF is reasonably fast (version HSM for Canon and Sigma) with the nut MF disabled during use in AF. Reproduction ratio 1: 3.

Cons: The version is not HSM (bayonet Nikon, Minolta and Pentax) is equipped with a traditional slow AF with the transmission spindle (can come to the aid of the limiter focus, but is not usable in the range from 2 to 3 meters). Specimens with Nikon mount (like mine) may have annoying problems of back / front focus on remediable DSLR where you can calibrate the AF.

Opinion: I have a non HSM used at the time of the Slide, with film cameras (F70, F90X, F100) and now with renewed satisfaction with D800.rnAll'epoca the F100 had to seek the assistance of Mamiya who solved a problem dialogue rechippando the lens. Now I make use predominantly macro using his skills as a magnification where, DX format, approaches a reproduction ratio of 1: 2. I am very pleased especially for the focus this lens, as paintings, is able to generate, as well as its working distance that allows me to shoot subjects particularly elusive. The copy I have is penalized by a front focus that I corrected with the AF setting on room (no problem to use a macro) .rnNon recommend that you use for sessions photo hunt because, while supporting the use of its teleconverter with good results, is the slow autofocus penalizing employment. However, for close-ups is on the contrary a lot of fun and ancora today, thanks to a 'high quality optics, gives unexpected soddisfazioni.rn

sent on August 14, 2013