Magna-flip Clip on Flip up Magnifiers, +5.00 Power Converts Distance Glasses and Into Reading and Computer Glasses

I AM DOING WORK ON SMALL CLASSIC IPODS AND IT REQUIRES BETTER VISION THAN I HAVE, THEY WORK. EVEN THOUGH THEY ARE A LITTLE HEAVY.

I Was very disappointed that these magnifying lenses didn't work for me. Much heavier than expected. I have always had thicker eye glasses lenses than most since I was about 10. Yep visually impaired. So could just be my prescription. That being said doesn't mean they won't work for you as everyone is different. For me they did work somewhat at close range about within 10 inches but thats not why I purchased them. Was wanting to bring things closer to me when I worked on PC's, laptops etc. They don't feel cheap in any way but they do have some weight to them just so you know. I gave them 3 stars because of the weight. So my search for tools to help me see better to do my work continues. I don't see this as a failure but as something that didn't work for me.

Would be great if they weren't so heavy. Falls of your face if you lean forward making it difficult to complete the job.

Great product! it has a very good zoom! I`m very happy with this product! The sell has a very good comunication!

The manufacturer tried to make a good product, and I do like them. They do have some issues though. The lenses are much thicker than necessary, making them add more weight to your glasses than necessary. I bought them for close-up viewing of my camera's LCD display, and it works great for that, but they get way too heavy to wear for long. I strongly recommend visor-type magnifiers for extended use. The part of these magnifiers that contacts the rear side of your prescription or sunglass lens is well padded. HOWEVER, the part that contacts the front side of your lens is made of molded hard plastic, and has mold burrs at the edges protruding towards the front side of your prescription or sunglass lens. At least one other reviewer missed this fact. I sanded these burred edges with fine sandpaper, making sure to clean off any residual abrasive that may have come off the sandpaper. I also put heat-shrink tubing over these, figuring it would probably be softer than the hard molded plastic. So far, no problems with scratching my prescription lenses. I never tried it with the bare, hard molded plastic though.

These are unnecessarily heavy and when you put them on your glasses and look down it just pulls the glasses off your face they are so heavy. In addition the picture that Amazon displays is the normal size. This is not what Amazon is shipping. As you can tell by the pictures I posted, the size they shipped is big enough to cover large aviator glasses. There are other brands on Amazon that are much lighter and smaller. Due to the weight, I cannot recommend these although optically they were fine but thick beyond what’s normal with today’s technology.

QUALITY ETC; PROS: The magnifiers work perfect for me. They perfectly fit my adult-male semi-aviator style glasses (a similar series is available for smaller glasses Small Clear Clip-on Flip-up Magnifying Reading Glasses +1.50 Diopter ). The construction quality is very good. They clip on securely, and provide exactly the magnification I wanted. CONS: I suspect that the plastic will scratch relatively easily--so I baby them, I wash them with hand soap under running water, and dry them with a clean cotton cloth. The clear vinyl "slipcase" (that these glasses and clip-on sunglasses come in) cause "rub spots"---and indeed the magnifiers I bought have such a "rub spot"--but far off center where it doesn't matter. The point is, do NOT store the glasses in the vinyl slipcase---use an old padded eyeglass case, or buy one for the magnifiers. Although they weigh almost nothing, I notice the extra weight, and find it annoying. THE NUMBERS I'm a retired professional photographer---the following discussion is based on camera optics---human optics are much more complicated. "YOUR ACTUAL RESULTS MAY VARY"---as they say, because the following recommendations are a gross over-simplification. However, they can provide a starting point for you. The formula is: new focus distance = 1 meter/diopter power. 1 meter = 40". So in inches, the formula is: new focus distance = 40"/diopter power ("X power" is generally used for hand-held magnifiers, not eyeglasses, and is different from "diopter power". 2x = +4 diopter power; 1.75x = +3 diopter power; 1.5x = +2.25 diopter power, etc. Note that the descriptions of some brands of clip-on magnifiers confuse these terms. One brand and model incorrectly described as "4x" is actually 4 diopters {i.e., 2x}) ADJUSTING DISTANCE PRESCRIPTION GLASSES (driving glasses) Distance prescription plus a +1.00 DIOPTER FLIP-DOWN MAGNIFIER will give you sharp vision to 40" Distance prescription plus a +1.25 DIOPTER FLIP-DOWN MAGNIFIER will give you sharp vision to 32" Distance prescription plus a +1.50 DIOPTER FLIP-DOWN MAGNIFIER will give you sharp vision to 26" (~computer glasses) Distance prescription plus a +2.00 DIOPTER FLIP-DOWN MAGNIFIER will give you sharp vision to 20" (~portable computer glasses) Distance prescription plus a +3.00 DIOPTER FLIP-DOWN MAGNIFIER will give you sharp vision to 13" Distance prescription plus a +3.50 DIOPTER FLIP-DOWN MAGNIFIER will give you sharp vision to 11.5" Distance prescription plus a +4.00 DIOPTER FLIP-DOWN MAGNIFIER will give you sharp vision to 10" Distance prescription plus a +5.00 DIOPTER FLIP-DOWN MAGNIFIER will give you sharp vision to 8" Your close focus distance will be closer, mostly depending on your age and your accommodation (ability to focus near and far). If you can focus to less than 24" or so WITH your distance glasses, then you might find +0.5 less magnification for each of the above situations to be more comfortable. ADJUSTING COMPUTER GLASSES 20-26" prescriptions are typical for large desk monitors. 16-20" prescriptions are typical for portable computers. Combined with the lenses of your eyes: A 26" prescription (40/26) =+1.5 diopters. A 20" prescription (40/20)= +2.0 diopters. A16" prescription (40/16) = +2.5 diopters. Diopter powers are additive, so. 26" (+1.5) prescription plus a +1.00 DIOPTER FLIP-DOWN MAGNIFIER = +2.50 diopters = new focus distance of 16" 26" (+1.5) prescription plus a +1.25 DIOPTER FLIP-DOWN MAGNIFIER = +2.75 diopters = new focus distance of 14.5" 26" (+1.5) prescription plus a +1.50 DIOPTER FLIP-DOWN MAGNIFIER = +3.00 diopters = new focus distance of 13" 26" (+1.5) prescription plus a +2.00 DIOPTER FLIP-DOWN MAGNIFIER = +3.50 diopters = new focus distance of 11.5" (~reading glasses) 20" (+2.0) prescription plus a +1.00 DIOPTER FLIP-DOWN MAGNIFIER = +3.00 diopters = new focus distance of 13" 20" (+2.0) prescription plus a +1.25 DIOPTER FLIP-DOWN MAGNIFIER = +3.25 diopters = new focus distance of 12.3" (~reading glasses) 20" (+2.0) prescription plus a +1.50 DIOPTER FLIP-DOWN MAGNIFIER = +3.50 diopters = new focus distance of 11.5" (~reading glasses) 16" (+2.5) prescription + 1.00 diopter magnifier = 3.50 diopters = new focus distance of 11.5" (~reading glasses) 16" (+2.5) prescription + 1.25 diopter magnifier = 3.75 diopters = new focus distance of 10.6" ADJUSTING READING GLASSES Most reading prescriptions are for about 12"; if your eyes are weak, reducing the distance to 6-9" may help you read better. If you need to pull splinters, thread needles, or do close work, then reducing the focusing distance to 5" or less may be helpful. Combined with the lenses of your eyes: A 13" prescription (40/13) = +3 diopters. An 11.4" prescription (40/11.4) = +3.5 diopters. A 10" prescription (40/10) = +4 diopters 13" (+3.0) prescription plus a +1.00 DIOPTER FLIP-DOWN MAGNIFIER = +4.00 diopters = new focus distance of 10" 13" (+3.0) prescription plus a +1.25 DIOPTER FLIP-DOWN MAGNIFIER = +4.25 diopters = new focus distance of 9.4" 13" (+3.0) prescription plus a +1.50 DIOPTER FLIP-DOWN MAGNIFIER = +4.50 diopters = new focus distance of 9" 13" (+3.0) prescription plus a +2.00 DIOPTER FLIP-DOWN MAGNIFIER = +5.00 diopters = new focus distance of 8" 13" (+3.0) prescription plus a +2.50 DIOPTER FLIP-DOWN MAGNIFIER = +5.50 diopters = new focus distance of 7.25 13" (+3.0) prescription plus a +3.50 DIOPTER FLIP-DOWN MAGNIFIER = +6.50 diopters = new focus distance of 6" 13" (+3.0) prescription plus a +4.00 DIOPTER FLIP-DOWN MAGNIFIER = +7.00 diopters = new focus distance of 5.7" 13" (+3.0) prescription plus a +5.00 DIOPTER FLIP-DOWN MAGNIFIER = +8.00 diopters = new focus distance of 5" 11.4" (+3.50) prescription plus a +2.0 DIOPTER FLIP-DOWN MAGNIFIER = +5.5 diopters = new focus distance of 7.25" 11.4" (+3.50) prescription plus a +2.5 DIOPTER FLIP-DOWN MAGNIFIER = +6.0 diopters = new focus distance of 6.8 11.4" (+3.50) prescription plus a +3.0 DIOPTER FLIP-DOWN MAGNIFIER = +6.5 diopters = new focus distance of 6.1" 11.4" (+3.50) prescription plus a +4.0 DIOPTER FLIP-DOWN MAGNIFIER = +7.5 diopters = new focus distance of 5.3" 11.4" (+3.50) prescription plus a +5.0 DIOPTER FLIP-DOWN MAGNIFIER = +8.5 diopters = new focus distance of 4.7" 10" (+4.0) prescription plus a +2.5 DIOPTER FLIP-DOWN MAGNIFIER = +6.5 diopters = new focus distance of 6" 10" (+4.0) prescription plus a +4.0 DIOPTER FLIP-DOWN MAGNIFIER = +8.0 diopters = new focus distance of 5" 10" (+4.0) prescription plus a +5.0 DIOPTER FLIP-DOWN MAGNIFIER = +9.0 diopters = new focus distance of 4.4" YOUR ACTUAL RESULTS MAY VARY, for a variety of reasons. These calculations are only for the purpose of providing a STARTING point to determine which magnification is best for you by trail and error. Even your optometrist determines your prescription by trial and error, NOT by measurements and calculations. You can test the actually magnification you need in your local drug store by placing magnifying glasses over your regular glasses. (Of course, if you plan to use the magnifiers with your reading glasses, you need to be wearing your reading glasses for the test.) With your arms held straight out ahead of you, the inside of your elbow is about 12" away (for reading glasses), your wrist is about 20" away (for computer glasses). A dollar bill is a good target to focus on. What about non-prescription sunglasses? Unless you have identical and perfect distance vision with both eyes, you are better off adding non-prescription sunglasses to prescription computer or reading glasses rather than adding a magnifier to non-prescription sunglasses

Wow these are heavy. Like, flipped up so they're not right in front of my glasses, they pull the glasses right off my face if I look down. They do work though. Pretty good for the money, I'd say.