Not sure about a push pull lens fix but I have a 18 - 200 3.5 -5.6 G kit lens that creeps if you look at it hard. This lens has a rotary zoom and I use one the wide Livestrong yellow bands around lens putting part on fixed part of lens and part on the part that turns. This allows the numbers to be seen and does not hinder the zoom. Any of these wrist bands will work and they are a cheep fix.