Its seem like some bros is not able to calculate how much each lens should be paid when co-buying.. keke.. this is the maths based on $718 best price got- 45mm $259
17mm $459
For reference only. . of course..
My opinion, 17 f1.8 should deserve more percentage of further discount based on lens value.
My calculation is 17 f1.8 get 63% of $50 while 45 f1.8 get 37% of $50.
For reference only.