I've got -2.75 & -1.75 eyes. Should I round up or down to the nearest diopter? For each eye. 2.5 or 3 for the 2.75 eye & 1.5 or 2 for the 1.75 eye?
64369
Because of the difference I would suggest buying 1 pair in each of the diopters you need and swapping out the lenses. For me the difference was only 1 point so I went up a half. They've worked out great.
64370
Two easy ways to solve this issue: There is a company called Platina (they also sell on Amazon) that sells the Corrective lenses separately so you can go that route if you like but it is more money. Second option: determine which is your DOMINANT eye and buy a pair with that correction. 99% chance you will NEVER notice the difference since your dominant eye controls most of your "vision"
47633
So you have the option to have a different strength for each eye? I did not when getting swim goggles and went with something in the middle, so in your case, either 2 or 2.5. I have one eye too strong, one not enough, but that does not seem to be a problem.
82129
I think -4.0 and -4 are the same. If you are near-sighted, you should choose negative.
998685
It says"Magnifier 2 5x ...". I believe the 2 is just part of the product name, there is no decimal point. A 4" lens diameter can't be 5x, they just can't make them. I even asked my eye doctor about ordering one from him. So I think the lens is a 1.5x with a 3x inset as the lower information on the page description says,. I sent mine back as the one I bought at a fabric store was better. I think you could find a 2x or 2.5x in a large lens with a 6x inset somewhere else. The around the neck batteries wear out very fast so you need rechargeable batteries for cost reasons.
1915312
Download the user manual, there is a chart with that info. I have 92" (diagonal) and am at 14'2" without adjusting the focus and so on. You'd need to be back some .... Mines a 3010, so YRMV.... It's worth the effort to get it "just right"....
998686
Good question. The cardboard packaging says 2.5 and 6x. Looking through it and just guessing, I'd say 1.5 and 3x. The magnification is not very strong.
1632326
i've found 1 1/2" is the "best". That close, always manual focus if possible.
2066692
I think it is best if you start with 0.5mm because it is safer and not painful and if you like it and get used to it get a replacement head of 1.0mm. Also depends on the areas where you want to use it, use smaller needles as a beginner or to use in gently areas such as around the eyes. hope this helps.
222845
Same company makes reading glasses as well. Just pick the 1.50 or 2.00 or whatever prescription is closest to what you currently use.
109311
I am actually hesitant to answer this question, because obviously no one here read the product description. On the first line it states "8 1/2-10 1/2" eye relief". So 10.5" at 2x, and 8.5" at 7x.
336773
Hi, I said I would check the use of the MaxTV glasses with my 4.25 Diopter contact lenses removed.I did, the focus adjustment did NOT go quite far enough to give a sharp focus. It was very close,but not quite there. If you used a two diopter, I don't think you would have a problem, even a 3 diopter would probably work. So for what it's worth. Ang, again, they work as I wanted them to.
530656
Maybe, if plus or minus 2 diopters is enough to allow you to see your menu clearly. It's usable for me but i could really use a little more than +/- 2 diopters.
642997
Id say pick the 17-35 if you intend to stay on DX size for another 5yrs... the 50mm covers the middle of the 24-70 so moving your feet will cover that distance, but the 17-35 will allow for group shots and landscapes/buildings... the 24 will limit that somewhat.... my2cents!
107885
Go higher! under water there is less visibility, so anything that gives you the edge, I would go for... Anyway there is some eye adjustment at any point and at that level half a Dioptric is almost negligible (my unprofessional opinion)
492744
Optimum Eye Relief (in) 12-20 SPECIFICATIONSMagnification 2 - 7X Obj. Lens Diameter (mm) 32 Exit Pupil Range (mm) 15.07-5.23 Field of View @100 Yds 60-16 Optimum Eye Relief (in) 12-20 Parallax Setting 50 yds. Click Adjustment Value 1/4 Adjustment Range 45 - 45 Transmission(%) Day/Night Weight (ounces) 7.50
759249
My brother has loan his 50 1.4 to me. I like. I may get the 24-70 2.8 - we get so many positives about it. Use the 24-70 indoors and the 4f lens where there is good light??Thanks for your suggestions.
1177291
Depends on what your prescription is. The camera has a built in -3.0 to +1.0 diopter adjustment. You want to buy the one that will allow you to match your prescription.E.g. If you wear +2 prescription, get the +2 and dial it down by 1. You would only need the - if you have to go further than the -3 that is built in. However, I have found that I do not use the diopter. When I have my glasses off, the images on the LCD are blurry. So I shoot with my glasses or contacts, so I can still view the images on the LCD.Hope this helps you decide.Chris
886612
If I understand your Query correctly you need to wear reading glasses. Correct? The EOS Canon cameras have a pretty extensive range of adjustability built in. If you need something additional (rather unlikely) then match the diopeter number to the number you wear with your reading glasses. Such as +1.5 or +2.5...I purchased this adjustment lenses but actually found out the Canon had the correct adjustment on the camera for me around +1.75. So I don't use this piece.