hmm, i mostly use mine indoors.. have not braved the storms yet.. haha.I always clean up my UV filter after I go shooting at seasides
one bad thing about lenspen is that it is still expensive
you can't use it forever, after prolonged cleaning, maybe 1-2 months the effectiveness will be reduced
also, still use blower and brush first, otherwise if you use the lenspen and rub abrasive remnants around on your front element, then you will be very sad..
personally, i used to like lenspens, but i gave up after a while, microfibre cloth can throw into washing machine.. lenspens once you touch the tip by accident with your finger, is gone case, you can throw the thing away because it will just spread your finger oil everywhere
yes isopropyl is safe cuz its organic. lens coating is usually deposited metal ions which can be eroded by aqueous based reagentssomehow i always thought that isopropyl alcohol not very safe..paranoid that it would damage lens coating.. only isopropyl safe? Anyway on another note, i was selling my lens recently, brought it out from aircon room to show the buyer, and the B+W UV filter immediately fogged up, and he used his t-shirt to wipe... talk about heart pain...haha!
I was very skeptical about IPA too. However, after trying it out, I dare say its the most effective solution for oils, stains and fingerprints. From my experience, it is chemically safe for the glass coating as well. Use it together with pecpad disposable tissues.somehow i always thought that isopropyl alcohol not very safe..paranoid that it would damage lens coating.. only isopropyl safe? Anyway on another note, i was selling my lens recently, brought it out from aircon room to show the buyer, and the B+W UV filter immediately fogged up, and he used his t-shirt to wipe... talk about heart pain...haha!
That guy is one probably of the few that are not obsessed with cleaning their lens or just dosen't give a darm, i know of a couple of guys that are almost closed to the level of being diagnosed with obsessive-compulsive disorder when it comes to lens and sensor cleaning.somehow i always thought that isopropyl alcohol not very safe..paranoid that it would damage lens coating.. only isopropyl safe? Anyway on another note, i was selling my lens recently, brought it out from aircon room to show the buyer, and the B+W UV filter immediately fogged up, and he used his t-shirt to wipe... talk about heart pain...haha!
yes isopropyl is safe cuz its organic. lens coating is usually deposited metal ions which can be eroded by aqueous based reagents