Do the +2 masks have an insert lens in the bottom? I am looking for a single lens, not a bifocal, that has +2 magnification. I was told that they all only have magnification on the bottom portion of the mask, which is not what I am looking for. In other words, is the entire lens a single piece of glass with +2 magnification? Do the +2 masks have an insert lens in the bottom? I am looking for a single lens, not a bifocal, that has +2 magnification. I was told that they all only have magnification on the bottom... » Read More Do the +2 masks have an insert lens in the bottom? I am looking for a single lens, not a bifocal, that has +2 magnification. I was told that they all only have magnification on the bottom portion of the mask, which is not what I am looking for. In other words, is the entire lens a single piece of glass with +2 magnification? « Show Less
149994
I think my lens are one complete lens at -6. I don't know anything about magnification at the bottom. They are not for reading, so I think they are one complete lens at whatever you order. I am very happy with mine.
2111514
Hello, you're using the "36x" figure in a way it's not intended. It simply means that the mm of the longest telephoto end is 36 times more magnification than the mm of the widest telephoto end.Therefore, the difference between "36x" and "35x" would be relatively trivial.Regarding the star ratings, those are averaged opinions from users based on their satisfaction.Regarding putting a superzoom lens on a Rebel T2i, no such lens (36x range) exists at any price. It's only possible on the P500 and other point-and-shoot cameras because they have a much smaller sensor than the T2i and other DSLR cameras. However, you can buy an 18-200mm zoom for the T2i, which works out to about 11x zoom range. Hello, you're using the "36x" figure in a way it's not intended. It simply means that the mm of the longest telephoto end is 36 times more magnification than the mm of the widest telephoto end.Therefore, the difference between "36x" and "35x" would be relatively trivial.Regarding the star ratings, those are averaged opinions from users based on their satisfaction.Regarding putting a superzoom lens on a Rebel T2i, no such lens (36x range) exists at any price. It's only possible on the P500 and other point-and-shoot cameras... » Read More Hello, you're using the "36x" figure in a way it's not intended. It simply means that the mm of the longest telephoto end is 36 times more magnification than the mm of the widest telephoto end.Therefore, the difference between "36x" and "35x" would be relatively trivial.Regarding the star ratings, those are averaged opinions from users based on their satisfaction.Regarding putting a superzoom lens on a Rebel T2i, no such lens (36x range) exists at any price. It's only possible on the P500 and other point-and-shoot cameras because they have a much smaller sensor than the T2i and other DSLR cameras. However, you can buy an 18-200mm zoom for the T2i, which works out to about 11x zoom range. « Show Less
282299
I have graduated lenses also; however, I just went with single vision lenses in my mask. Don't know about Cyl and Axis ... I didn't bother (even tho I have an astigmatism) and they worked great
721703
Only one lens is polarized. The darkest color. I use these on all my bike rides, and change the lenses depending on the light conditions. A little bulky on the nose and ears, but very effective and a great value. You can't get anything else like it near that price. I took the insert to my local optical store and had prescription lenses made for the insert. It was the least expensive way to go.
438324
These glasses actually do have a magnification of +.25. I actually took them to my eye doctor and they measured the power for me. To put this in perspective, many reading glasses are +1 magnification. +.25 is the smallest increment, incrementing at .5 .75 and 1. So, the magnification is quite small, it just helps things become a little clearer.
1530820
From what I understand the IS feature allows you to shoot "hands free". Of course if you use the lens on a tripod (like I do) if you had IS you would have to turn it off. This is an amazing lens and definitely my favorite. For Portraits I would check out the 24-70mm 2.8 IS L Lens. I have not tried a 2X extension with this lens but at this time I really don't need one. However, if you are thinking of using 2X extensions, I imagine that you would be shooting with a tripod and would not need the IS feature.
770501
Some have different colors like azure(blue) on the inside frame and black outside so it has to do with the color and also GR004 gives you the option to include magnification on the lenses if you want or need that. You can look at the description of each to see if its the one you want. You can choose no magnification on the ones that offer it and the only difference would be the color.
1476282
Very strange, but they have the same lens listed twice! I was wondering this too..but they're the same lens. Sorry for the late response!
2206064
Mine says it has a 3.5 inch 2.25 (5 diopter) lens. It also came with a little magnifying tape on arm thingy that shows no instructions for how to attach it or how to use it? I am so confused!
62040
Unfortunately I could not find a bifocal mask with correction for both far and close up vision. I bought a Promate mask with +3 correction for close up vision with the intent of reading the pressure and depth gauges while SCUBA diving and seeing the screen of my underwater camera. However, it doesn't work well with the camera because I have to raise my head to an uncomfortable position in order to see the screen while taking a photo or a video. I also bought an IST mask with single +1.5 correction, which is fine for me for far away vision, but is only of some help for reading the gauges and looking at the underwater camera screen. Unfortunately I could not find a bifocal mask with correction for both far and close up vision. I bought a Promate mask with +3 correction for close up vision with the intent of reading the pressure and depth gauges while SCUBA diving and seeing the screen of my underwater camera. However, it doesn't work well with the camera because I have to raise my head to an uncomfortable position in order to see the screen while taking a photo or a video. I also bought an IST mask with single +1.5 correction, which is fine for me for far away vision, but is only of some help for reading the gauges and... » Read More Unfortunately I could not find a bifocal mask with correction for both far and close up vision. I bought a Promate mask with +3 correction for close up vision with the intent of reading the pressure and depth gauges while SCUBA diving and seeing the screen of my underwater camera. However, it doesn't work well with the camera because I have to raise my head to an uncomfortable position in order to see the screen while taking a photo or a video. I also bought an IST mask with single +1.5 correction, which is fine for me for far away vision, but is only of some help for reading the gauges and looking at the underwater camera screen. « Show Less
2142660
As far as I can tell - it does not have any 1/2 zoom increments. I have used the Zoom a few times and haven't seen those type of increments. Hope that helps!
1369944
It only came with the two lenses. We sent back everything that came with it. We do not know what the magnification multiple is.
1773873
I just got one and couldn't see anything either. When I took it out of the box there was a 3" lens that was separate. I thought it was an extra. Turns out that it needed to be placed in the end of the telescope. If this is your case, unscrew the plastic ring at the large end of the telescope (remove the sun shade piece first) place the lens on top of the other lens and replace the plastic ring. There should be 2 lenses at the end. Once I did that I could see great! Start out with the largest eyepiece (25mm) to find objects easily.
827925
They do have a 2.5 and 3.0, but they are all bifocal. The upper part of the lenses are plain, no correction.
438326
Standard Gunnar glasses have a +1.2 magnification to them, per their website:http://www.gunnars.com/gunnars-vs-cheap-alternatives/
453390
Hi, it does have magnification, but through the included software (via download). It's a digital zoom. So you do lose some quality. To attach, you need to remove the existing eye piece. There is a very small screw holding it. Unscrew that and then pull out. For my microscope, I did not need any of the included adapters. Note installation may be different if you have a different model microscope. Hope this helps.
486588
Not exactly - the lens is 2x. There is a small circle in the lens that is 5x. So, you can position the lens over your work so that you are looking through the 5x circle.