teleconverter

Good day everyone I am relatively new to photography. This July I am going on holiday to Namibia. I am looking for a camera that I can use there but also outside the holidays. I need the camera mainly for travel photography for family photos/photos of families, cities, for landscapes, but also...

An auxiliary telephoto lens that attaches to the front of a lens can use a variety of groups/lenses. Some use 2 groups with 4 lenses, some use 3 groups with 5 etc. I'm unsure how it exactly works and i'm looking for somewhere to learn. Is there anyone that can explain how the optics work and...

Hi all, I'm a newby looking for help! I've got a Nikon D5600 and use a Sigma DG 70-300 lens. I'm mainly interested in wildlife and birds, and while I get some decent shots, I wonder if I'd do better with better equipment. (The problem of course might be me!) I've spent hours looking into...