what does aspherical mean
288362
If you go to this link, http://www.mir.com.my/rb/photography/opinion/html/aspherical.htm, you will find a pretty good explanation of aspherical. I went here to find out what it meant before getting the lens.
1346792
Sorry .that means near-sighted lens.Thanks.Best regardsSincerleyTHG LImited
1056025
Refractive wise is the same for planar vs distagon. However the way the lenses is cut will change the dispersion between the two. I would say it's planar. To be sure call tech Dept. At AmScope. Most good lenses from Japan & Germany are planar..obviously dispersion is the way the light is bent through lenses.
520870
Hi Misty! I'm not entirely sure exactly what you mean, but if you're referring to the small round quarter sized higher magnifying lens in the larger lens, it's to the side (actually, about half way between center & the edge of the larger glass). I'm still very happy with this lamp and believe it is among the best available out there! Let me know if I can perhaps provide a better answer for you, if needed. Thanks!
100148
"with its Polished Brass body"? Solid Brass body? or just Brass finish?"- Means is Brass furnishing or Brass in colour furnish lol
264221
Sorry, I don't know what that term means. I reviewed this product because I bought it at a very good price and it has performed very well for me. In fact, I'm still using the same cartridges at this time.
2345
The description says, "Unique mixing head orbits around bowl as beater rotates in the opposite direction". That sounds planetary to me.
1944762
An aspheric lens has less distortions around the edges of the magnifying lens. The mold has more of a concave shape to it to allow for clearer, sharper images.
462189
The front glass is flat at the center (10 cm circle), and then a little curve towards the border (from the center of the glass to the border, there is only 1 cm difference). El vidrio del faro es plano en el centro (crculo de 10 cm), y tiene una pequea curvatura desde all hacia el borde (esa distancia es de slo 1 cm de diferencia).
703240
It is normal. all land objects will appear like that. You should be good for looking at space objects.
1633991
I have no idea. I don't remember seeing it on any of the packaging. However, I can tell you that it looks like optical prisms, in that you get lots of refraction.
1535330
I'm not sure what that means. However, I have two of these. They were installed on vynil siding. The one on the front of my house was mounted horizontally. While the one on my back door was mounted vertically to go over two pieces of siding. They both look good no matter which way they are mounted. I get a lot of compliments on them.
349530
It does refer to the diameter of your lens, if you are unsure or want to double check, look on the inside of your lens cap!
2073628
It is because you are to zoomed out. Zoom in till the ring disappears. Otherwise if you are trying for a different effect. You will need a lens with a Aspherica effect. Hit up a camera store and you will see.
945842
Hi Sandy. It means opaque. When a sticker is applied to a key, it covers the original character on that key. I hope that helps. I really like these keyboard stickers.
1077325
Because it is a military style compass. Lensatic, Prismatic, Optical-all mean the same thing.
1026387
If you are using a regular star diagonal then the images are mirrored, this diagonal will correct it. Also it will be a bit easier to point a terrestrial objects using this diagonal.