Video duration: 467 seconds
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simple lens cleaning procedure performed on minolta's 50/1.7, 17-35/2.8-4 and sigma 105/2.8 macro. if you shoot concerts, lenses become dirty almost every show. here's how i deal with that. 105mm is the most difficult because of the front element being located deep in the barrel
Video duration: 378 seconds
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This video frequency almost covers all behavior to know, not the precious lens that behave to know, looking at not to shed tears for it tightly, the generation martial arts respected master youth dies early, we can sigh with regret silently only, however hope that the people can study him, can exert and strive without stop.
Video duration: 657 seconds
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Intraocular lenses, commonly called IOLs, may be one of the most important ophthalmic developments in the past 30 years. These tiny prescription lenses are placed inside the eye during cataract or Clear Lens Extraction And Replacement surgery (CLEAR), replacing the eye's natural lens (called a cataract when it becomes clouded).
Video duration: 441 seconds
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http://www.greenpowe rscience.com/
This is our second cooking episode using only a large Fresnel Lens and the power of the sun. This is a medium heat standard method.
