My current Nikon cameras:
As a Landscape and Nature photographer, I was interested in the 36.3 megapixels Nikon D810 because it brings medium format capabilities into the price range of the dedicated photographer. I was interested in the medium format resolution quality for my landscapes. For my wildlife photography, the huge file size allows me to crop in and get a nice size print image. Being able to crop was important to me as I found that no matter how long the lens (Nikkor 600mm) 0r the teleconvertors added ( Nikkor TC-17E11), I was often not able to get as close to the wildlife as I would have liked. Thus, being able to crop, allows me to get as close as the photography equipment will allow, yet still get a great close-up.
I also find that I get great high frame rate shooting, without the extra external grip. With a high resolution card (Lexar Pro 1066x 32GB UDMA 7 ), the five frames per second shooting rate in FX mode does not overpower the camera buffer. The camera just keeps on shooting.
I bought the Nikon D7000 when the Nikon D300 that I sent in for cleaning before a trip got temporarily lost in the mail. The D300 was not going to arrive in time for my trip, a month in Switzerland and Italy. I scrambled reading reviews. I wanted a lightweight DSLR with great high ISO capabilities. (Once again, read Ken Rockwell’s extensive review of this camera). After reading Ken’s rave reviews, I was sold. On this month long trip, I was traveling with a backpack. The Nikon D7000 with a 18-200 lens was a pleasure to carry all day long. It focused incredibly fast in low light situations. It was missing some of the bells and whistles of the Nikon D700, but for traveling and backpacking it is amazing. I also carried this on a backpack day trip in the Smoky Mountains; once again the weight was a pleasure to carry. For me this answered the question of whether to take a point and shoot camera or a DSLR on a trip. I feel this camera gives me high DSLR quality in lightweight package. Perfect.
I converted this older Nikon D70 to a designated infrared camera. By converting a camera to infrared you can focus as see the image as you would a normal image with no dark infrared filters obscuring the landscape. Because the images take the green in an image and see it as white, in some cases the image almost looks like a black and white version of the image. As with a lot of black and white images, increased noise is not much of a concern. Hence the older, low end Nikon D70 works great for these images. This camera comes out of my camera bag in the spring when the leaves are glowing. In many cases, the infrared look of the image gives the image a whole new fresh look.