This 300mm seems to be lightweight (755g), but definitely not cheap! http://www.bhphotovideo.com/c/product/1111442-REG/nikon_2223_af_s_nikkor_300mm_f_4e.html

What lightweight telephoto lens are available for Nikon bodies?
I have a list of codes in the second column of a table and I want to extract some elements of each code then store them in new columns associated with each of the codes. 
Each code consists of letters followed by some numbers. The letters are P, F, I , R, C repeated with the same order in all codes but the number of digits are varying in each code. 

For example: consider the codes as below:

P1F2I235R15C145   P1   F2   I23   R15   C145
P24F1I12R124C96   P24  F1   I12   R124  C96


so in this way I can split each code into its constitutes sub-codes, and store these components into new columns in the same table.
thanks
