I recommend checking the internal cleanliness of the lens by fully opening the aperture and looking through the lens at a very bright white point light source such as an LED torch. The brighter the better. Then reverse the lens and look through it in the opposite direction. This will truly show up any dust, haze, fungus, balsam separation and any internal marks caused by clumsy servicing. Don't worry if you do not see perfect cleanliness as a small amount of contamination is unavoidable in an old lens. However, this method of inspection will highlight levels of contamination that can significantly affect image quality and will reveal the true condition far more effectively than simply holding the lens in front of a window or a domestic lamp. Dust, haze and fungus can be removed by having the lens dismantled and cleaned by a skilled technician. (Cost €80 - 120, depending on the lens's complexity.) Balsam separation refers to when the optical glue joining certain lens elements together starts to fail and is almost impossible to remedy.
Thanks for watching. Some Nikon lenses are very easy to take appart and clean. Some others are vey complex (I.e zooms, macros...). In all cases, make sure you have a correct tools ( i.e JIS screw drivers, as philips or pozidrive one will damage the screws), and the correct grease should you want to re-grease it. But if the lens is worse more than the cost of repair, use a pro. Regarding the Balsam issue, I had a couple of 35-70 2.8 AF that did that on me. It's a real pity as this is one of my favorite lens, but it is also a ticking time bomb.
Merci pour tes encouragements. UA-cam fait toujours partie de mes objectifs, c'est juste que ces derniers moi ont été plutôt chargés pour moi. La bonne nouvelle est que j'ai réalisé une nouvelle vidéo cette semaine. Elle devrait être en ligne très bientôt.
I recommend checking the internal cleanliness of the lens by fully opening the aperture and looking through the lens at a very bright white point light source such as an LED torch. The brighter the better. Then reverse the lens and look through it in the opposite direction. This will truly show up any dust, haze, fungus, balsam separation and any internal marks caused by clumsy servicing. Don't worry if you do not see perfect cleanliness as a small amount of contamination is unavoidable in an old lens. However, this method of inspection will highlight levels of contamination that can significantly affect image quality and will reveal the true condition far more effectively than simply holding the lens in front of a window or a domestic lamp. Dust, haze and fungus can be removed by having the lens dismantled and cleaned by a skilled technician. (Cost €80 - 120, depending on the lens's complexity.) Balsam separation refers to when the optical glue joining certain lens elements together starts to fail and is almost impossible to remedy.
Thanks for watching.
Some Nikon lenses are very easy to take appart and clean. Some others are vey complex (I.e zooms, macros...). In all cases, make sure you have a correct tools ( i.e JIS screw drivers, as philips or pozidrive one will damage the screws), and the correct grease should you want to re-grease it. But if the lens is worse more than the cost of repair, use a pro.
Regarding the Balsam issue, I had a couple of 35-70 2.8 AF that did that on me. It's a real pity as this is one of my favorite lens, but it is also a ticking time bomb.
Tu devrais refaire des videos c'etait bien
Merci pour tes encouragements. UA-cam fait toujours partie de mes objectifs, c'est juste que ces derniers moi ont été plutôt chargés pour moi. La bonne nouvelle est que j'ai réalisé une nouvelle vidéo cette semaine. Elle devrait être en ligne très bientôt.
👍👍
Thanks for watching!