Viewing Distance Calculator

Provides excellent performance. I have used this tripod for both hunting, nature viewing and long distance photography. It is incredibly stabil and allows for use on very uneven terrain. It is on the heavy side, but so long as you plan your packing list for your other items, it is quite manageable.

50mm diameter lens provide very comfortable viewing scope, however, its 15 times zoom which means you need a very steady hand to hold it . The easy to read distance measuring scale really gives me a approximately object distance measurement. It is fun to have Vortex Recon tactical scope , I love to have it whenever I traveled.

These are perfect for skywatching and long distance viewing. They made a great gift ! My husband loves them!!

This is a good scope if you can't aford a more expensive one. It works well for viewing birds at a fair distance. You can see a lot of detail at a long distance. The scope is light and it is easy to carry in the bag it came with, and the eyepiece comes in a hard plastic case. The waterproof/fogproof feature is a big plus as well. The little t-mount hook up for DSLR is okay but the aperture zoomed in is too small. Unless you're in direct sunlight at high ISO, the shutter speed will be too slow and you'll get a blurry picture. Besides, the scope is too light to hook a camera to with any amount of stability; it's a neat addition, but not the most useful thing in the world. If it's your plan to use this as a lens, I'd suggest an actual lens, or a heavier scope.

This monocular presents an extremely clear image at a good distance. I've found it useful for viewing out my house windows and also from the car on the street. I take it everywhere with me. The focus wheel is easy to use without taking the monocular from my eye. It has just the right amount of resistance and never slips out of focus. It's exactly what I was looking for. I've learned so much about my town with it!

Elegant monitor with minimal bezel on three sides. The 24 inch is perfect for my small desk/office and close viewing distance, and I can rotate the screen for greater enlargement in the portrait mode if needed. Setup was easy - the DVI input is used to connect my work laptop in an extended desktop arrangement and the HDMI to connect my desktop. Switching between the two inputs is a breeze once you've figured it out. A DVD player and external hard drive are connected to the USB outlets. No dead pixels or bleeding of light around the edges was detected giving a perfectly black background and colors were superb compared to two other monitors on my desktop. Business graphics and text were well defined and with good contrast. Eyestrain was greatly reduced compared to my previous monitors [I also appreciated the tips on viewing distance to minimize eyestrain included in the documentation]. The one question - after one month of use it is messaging that it needs recalibration

I use these for simple bird watching and viewing across our field at nature in the distance. They are very easy to adjust and extremely sharp and clear. I am very pleased with them and would buy them again. In fact I did!! the only thing I would change is possibly making the front lens cover stay intact with the binoculars when you remove them from the lens - Like the back cover is.

The 10 stop filter is simple to use with the long exposure calculator.

Photography in a dark room. Love the calculator being available at all times

This calculator is beautiful, stylish and perfect. Item exceeded my expectations. I would purchase again.