Pregunta sobre estos 35-105

[AUDIJOSEMA]

Quisiera saber la diferencia que existe entre estos modelos y cual es mejor para comprar
Un saludo y gracias:foto:

http://img413.imageshack.us/img413/352/mk1u.jpg (http://img413.imageshack.us/i/mk1u.jpg/)

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http://img191.imageshack.us/img191/8331/409510877o.jpg (http://img191.imageshack.us/i/409510877o.jpg/)

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[AUDIJOSEMA]

¿Nadie los tiene?:(