Psychin Formatics

Posts Tagged ‘laser’

I have compared the Nikon ProStaff Laser Rangefinder 550 to a Nikon Prostaff 440 and a Bushnell Yardage Pro Sport 450, using all three on the same targets.
Note: I have NOT tried these units on a golf course. All three units are made in China.

The Nikon 550 is a very capable laser range finder, and is very similar in ability to the Nikon 440.
The main differences between the two are the slightly greater range of the 550 model.
Despite the understatement of the advertising, I have ranged out to 706 yards with the Nikon 550, and 545 yards with the Nikon 440.
Dark trees can be ranged up to about 400 yards with the Nikon 550, and 330 yards with the Nikon 440. Deer can be ranged to 300 yards reliably with both. The 550 model has a magnification of 6X and the 440 unit is 8X and I greatly prefer the 8X view of the Nikon 440.
Both have a diopter adjustment which is adequate for my eyeglass correction of +5 diopters with and without my glasses.
I also find the long rubber eyepiece of the 550 unit difficult to use if I change to and from eyeglasses, as I do not like to keep folding the rubber down, and I know from experience that you can fold these type of eyepieces only so many times before the rubber (or vinyl) cracks.

Ranging Performance is:
Dark trees: Nikon 550 400 yards, Nikon 440 330 yards
Telephone poles: Nikon 550 430 yards, Nikon 440 360 yards
Deer: unobstructed medium deer, both 300 yards
Dark shrubs: Nikon 550: 400 yards, Nikon 440 350 yards
Light colored buildings: Nikon 550 535 yards, Nikon 440 453 yards
Very reflective targets, eg trucks, Nikon 550 706 yards, Nikon 440 535 yards

They both acquire targets well and range accurately when compared to other units.

I am biased to wards the Nikon 440 unit, because:

1. it is smaller and handier
2. It has 8X magnification which I really like and use (and need)
2. It is adequate for anything out to 300 yards and often 400 yards
3 It costs about 60 dollars less than the Nikon 550
5. The battery compartment s
Nikon ProStaff 550 Laser

I purchased this mouse strictly based on the abundance (and content) of good reviews on Amazon. I have used it now daily for several months, and I am very pleased with my purchase. I have found that I occassionally have to slow down to let the mouse catch up with me but it is so infrequent that I do not consider it an issue. It was worth every penny because I no longer have problems with my dogs getting tangled in my mouse cords and unplugging it.
Logitech V450 Cordless Laser