I have brought an old lens Tamron Af 90-300 f/4.5-5.6 And using this Nikon D5200. My problem is color. Color isn't vivid at all. Some photos are good with extreme sunlight. But whenever, sky is cloudy or foggy or in low light situation - color production is poor. For example. Captured this on Noon, cloudy sky. Color is not vivid and real isn't visible. . Is it lens fault or what? Is there any solution?