p>ah yes, that resolves it, perhaps one might rub through the front element and then the nano coat huh. I think the term Nikon should have used is "hydrocarbon solvents", like xylene, acetone, MEK, naptha, etc. Plus, if you have an old lens with a lot of lens elements, it will often have even more color cast, and look a bit "dim" for the aperture and shutter speed vs a more modern lens. But you do know that it’s an exceptional new protective coating that keeps literally anything clean and safe, without any more work from you. I assume Lens rentals clean 100's or lenses and cameras every day and many threads above agree with what Lensrentals say.

If you are in the quest of finding high-quality nano crystal coating that can offer you the best value for money, look no further than the impeccable products found here. If anyone is dumb enough to use one of the above mentioned fluids, they deserve the results that they get. The general design is based on nano-scale roughly dome/spike-like structures intended to guide as much light as possible into the lens, avoiding reflectance entirely whenever possible.In terms of overall IQ improvement, the improved transmission should also improve contrast, even at a microcontrast level. Whilst most nano lenses seem to have nano on only 1 surface the press release for the 300 VR II showed it applied to both sides of 2 elements - 4 surfaces in all. Granted, that is far lower than the 8-10% that used to exist with single coating and uncoated lenses, however in complex lenses with many elements, a considerable amount of light can still be lost overall (i.

p>I've used protective filters on my lenses for over 50 years, and find no difference in quality of test shots with or without.There are many threads on DPR that address this issue and ROR is very frequently recommended - which is where I initially learned of the stuff.