Sigma AF 17-70mm f/2.8-4.5 DC macro

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Inviato il 24 Maggio 2011, 16:38:13

Bimbotech

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Messaggi: 1

Ciao a tutti!!
Ho recentemente comprato un Sigma AF 17-70mm f/2.8-4.5 DC macro per la mia EOS 400D.
Tutte le recensioni sembravano ottime, ma quando l'ho montato mi sono accorta che il 70 mm non sembrava affatto un 70 mm (considerando che dovrebbe corrispondere ad un 112 mm), ma, più o meno, un 35 mm (cioè un normale su una non full frame).

Montando un tele (sempre sigma) 70-300 ho avuto conferma della mia sensazione!

Com'è possibile?
Sono disperata perchè pensavo di aver trovato un obiettivo versatile!  Perplesso

Mi sapete spiegare se consiste in un difetto dell'obiettivo, o, in caso contrario, da che dipende?

Grazie mille!!
Manuela

Inviato il 15 Marzo 2016, 04:51:17

Smanettino

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Inviato il 15 Marzo 2016, 04:51:17
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