▁error ▁and ▁field ▁when ▁foc using ▁closer . ▁The ▁in - body ▁find er ▁shows ▁ 9 0 % ▁of ▁the ▁captured ▁frame ▁at ▁ 0 . 5 9 × ▁magn ification ▁when ▁the ▁" normal " ▁ 4 5   mm ▁l ens ▁is ▁used . ▁The ▁view find er ▁uses ▁m old ed ▁as pher ical ▁l ens ▁elements ▁to ▁reduce ▁size . ▁ ▁While ▁there ▁is ▁an ▁electronic ▁connection ▁between ▁camera ▁and ▁l ens ▁to ▁transmit ▁data , ▁the ▁l enses ▁have ▁no ▁AF ▁motor ▁and ▁no ▁means ▁to ▁adjust ▁focus ▁on ▁the ▁l ens ▁itself ; ▁both ▁aut of ocus ▁and ▁manual ▁focus ▁are ▁driven ▁by ▁a ▁motor ▁in ▁the ▁camera ▁through ▁a ▁mechanical ▁" s cre w driver " ▁coupling . ▁The ▁focus ▁d ial ▁on ▁the ▁G 1 ▁is ▁the ▁d ial ▁marked ▁with ▁distances ▁on ▁the ▁far ▁right ▁side ▁of ▁the ▁body , ▁and ▁is ▁also ▁used ▁to ▁select ▁the ▁aut of ocus ▁mode ; ▁on ▁the ▁G 2 , ▁the ▁focus ▁d ial ▁was ▁separated ▁from ▁the ▁focus ▁mode ▁control ▁and ▁moved ▁to ▁the ▁top ▁front ▁edge ▁of ▁the ▁body . ▁ ▁Cont ax ▁G 2 ▁Comp ared ▁with ▁the ▁original ▁G 1 , ▁the ▁G 2 ▁has ▁improved ▁aut of ocus ▁performance ▁and ▁higher ▁top ▁sh utter ▁spe eds ▁of ▁  sec ▁in ▁manual ▁mode ▁and ▁  sec ▁in ▁a pert ure ▁priority ▁mode . ▁ ▁The ▁manual ▁focus ▁wheel ▁was ▁moved ▁from ▁the ▁top ▁deck ▁to ▁the ▁front , ▁to ▁about ▁the ▁same