Cleaning a spec of a lens
Posted 28 June 2006 - 05:20 PM
Posted 28 June 2006 - 06:13 PM
Did you try using a Q-tip with a little lens cleaning solution? I'd put a few drops of solution on a Q-tip and work the area, then use dry ends until you remove the spot.
I've found that the best way to clean lenses, once an initial full on clean job is done after purchase, is to use this technique. Using a lens cloth or cleaning papers is terrific for an initial cleaning, but then you've got the cap on most all the time and the only time it comes off is when shooting something for the most part. So the only thing that can get on the lens are globs of water or other airborne particles unless you somehow land a fingerprint on there. Pulling out the cleaning cloth or lens papers will result in eventual rub marks/cleaning marks on the lens. But touch-ups on very tiny local areas when needed with a Q-tip doesn't seem to be harmful.
Posted 29 June 2006 - 06:41 PM
Posted 30 June 2006 - 05:39 PM
Another thing, even at wide open this lens is pretty dim through the viewfinder, but seems nice and bright when I'm just eyeballing it. I can't see anything on the internal elements. It's like there's a pair of invisible sunglasses glued on it. The internal exposure system always says I'm about a stop off my external readings, which are spot on with other lenses. Is this usual, or is something seriously amiss?
It was like this before I tried cleaning too.