I recently switched from my Nikon D300 workhorse to the full-frame Nikon D750, and had the opportunity to try the D750 out on a trip to Kazan, which is the capital of the Republic of Tatarstan in Russia. When released in 2007, the D300 was a stellar, tough-as-nails DX-fomat camera that was great at action, wildlife and general photography. The D300 was my companion on trips all over Europe and North America. It was impeccably reliable, and I appreciated the extra reach of the DX sensor.
However, I finally decided that the price was right to jump to a full-frame sensor (FX), and picked up the D750. I first started in photography with a 35mm film SLR, and always had the itch to get back to an FX format. The two primary motivations for the switch were much higher resolution (24.3MP vs. 12MP for the D300) and the well-known, superb low-light capabilities of the D750. I wanted a camera that was good at both shooting landscapes and, say, low-light interiors, while still having many of the advantages of the D300 in terms of shooting action and other types of photography as well as having weather-sealing. Like the D300, the ergonomics and general layout of Nikon D750 DSLR camera are also great.
For travel, I paired the Nikon D750 with the Sigma 24-105mm f/4.0 Art lens. The Sigma lens is known for its sharpness, particularly at wide angles, and it is a very versatile, general purpose lens. This combo was actually a recommendation made by Tony Northrup, and it performed extremely well on my trip to Russia. Overall, I am very happy with the D750. Even though some may consider it old tech, it’s still a robust, highly capable DSLR that will satisfy my needs for the next several years.