There is no balsam separation. There is no fog on inside of the lens. It has no tiny fungus. There is no problem or impact when taking photos. You can enjoy taking photos with the lens in good condition.If you have any question or concern, please do not hesitate to contact me. However, I will provide courteous and responsive service. If you are looking for a particular item that is not in my listing, please do not hesitate to contact me. I will look it for you. International Buyers - Please Note. The item "Nikon AF Nikkor 300mm f/4 ED Telephoto Lens for F mount from JAPAN" is in sale since Wednesday, August 7, 2019. This item is in the category "Cameras & Photo\Lenses & Filters\Lenses". The seller is "tomorrowabout2020" and is located in Tokyo. This item can be shipped worldwide.