Will this show you a high and low RI on DR stones that will have a birefringence?
1024516
It will give you a singe RI reading. The Presidium will give general RI readings as high as 2.6-2.8 for diamonds, moissanite & strontium titanite. A chart is included.
1024517
It gives one value for the RI of a stone as opposed to a range of high & low.
1055663
I would thank that you would. Have to read all of the spectra for each model # and compare closely, could be an extra coating on the linse, could be minimem focal distence just compare very closely
2242632
Nowhere in the book , does it mention " light transmission " . The scope is bright and clear . The parallax is very sensitive as far as color spectrum . I.E. the black bull and rings on target will look red when out of adjustment . Beside the heavy duplex not bad so far . Light transmission is always listed on Nikons , Zeiss etc. But on a $75 dollar scope ? I don't expect it . If light transmission is critical to your application , I recommend buying a real scope ....
2233855
I would expect at very low magnification you would see something like a lower 1/3 cowitness possibly but as magnification increases should be minimal if any distraction from it.
90855
Actually it is not. Because of the GND polarization. I am using BeagleboneBlack but ı had to create another board to convert polarization. It is designed for Arduino boards ı guess.
1333353
You wouldn't get an proper reading on your white balance. The disk should cover the whole end of the lens.
1942419
It would be very dim. This is a very dense red filter. Are you thinking something like an anaglyphic filter? This might be a bit too dense.
765095
sorry have not had mine long enough to answer that. but i will tell you that the magnification is not what i expected.would have sent it back but my husband 'hard wired' it and i did not have the heart to tell him i was not happy with it. don't buy it!
972916
There are two magnifications I believe. You can reach two focus points by turning the know. So there are two positions you can turn to that will give you a clear image. Those two positions have different magnifications. Just turn the knob between its extremes and you'll see.
856579
I have used the doubler a lot and the thing you will notice the most is that your field of view becomes pretty limited. As far as the quality of the glass, it seems to be very similar to the glass in the scope
1773280
I purchased my Lucid HD7 with a 2x magnifier, so, depending upon the strength of your flip-to-side magnifier it should work. Then again, if its to strong it may over compensate and blur the variable reticle.
1949428
No only accurate to one gram. Sounds like you need a triple beam or a very expensive digital.
129554
No one item alone will positively identify a colored gemstone since many synthetics have the same optical, chemical, and physical properties of natural stones. Generally, it is a combination of different instruments that help in identification, and then that needs to be coupled with experience in separating some synthetics from natural. A refractometer will give you the refractive index of a gemstone, and in some cases that can serve as a positive ID if no true synthetic has been produced for that particular stone. But even then, the r.i. of some gemstones overlap each other, as well as being the same color, which makes other testing necessary.
897742
I have been satisfied with my refractometer so far. I previously had one that came in a gem lab I purchased 25 years ago and it wasnt nearly as easy to read as this one. No complaints to this point.
830705
I don't think it will. It is for magnifying TV image. I am afraid from what my mother-in-law has told me from using it, it does not provide much clarity.
1759551
Sure! Flips from one magnification to another. I love this thing! Wish I had gotten it much sooner :)
38840
If you look directly into the device, there will be a faint res dot. You can not see any light otherwise. It will throw out to about 150 yards effectively, maybe a bit more. There ia about a 30 degree angle either side od center.