With such a large gap in price many people are questioning is the GM that much better? In the many tests I’ve seen it appears that the Tamron has slightly more distortion than the GM but generally is comparable in sharpness and overall performance.

Ivan Ferrera is a NY/NJ-based photographer. With a professional career in Information Technology, Ivan began dedicating his pastime to shooting the spectacular New York City views as seen from New Jersey where he was born and raised. Working in New York City and living right across the Hudson river has allowed him to focus on bringing NYC to his followers around the world. Check out his work at ivanferrera.com