Fluttering our heart away we found some very amazing birds in the erek erek jungle around the o Ijen crater mountain erekerekgeoforest Taken with ttartisan.id 500mm F6.3 telephoto lens adopts an optical structure of 8 elements in 5 groups, including 2 extra-low dispersion glass and 2 high index glass. denkapratamaid #TTArtisan #ttartisan500mmf63 #DenkaPratama #diindonesiaaja