Do I use a +2 or a -2?
1177288
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
1177289
I didn't like mine I never could get my eyes right to be able to use it , sorry I am not more helpful
1177290
It depends on what your eyeglass prescription is. I spoke to my optometrist to see Whart general range is.
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
1943682
The directions are on test. 2 lines means negative. One line is positive. The second line may be very light but still negative.
994357
Hi,In order to subtract, you input the number you're subtracting from followed by the plus sign. Then put in the number you are subtracting followed by the minus sign.
1379669
I think the period in the description is supposed to the a slash. Hence 1.2 = 1/2.
1434292
I am not sure what you mean. To me it works logically which is why I bought it. 8+6=14. 8-6=2 and so on.Hope this helps.
1958755
You can use the number 1 for L or I, and the number zero for the letter o. To get two c's you would need two locks. And the letter a is with the c. how about a "sound alike": axio?
944498
I would start with just one. You can always add a second later, but I would be surprised if you need a second one.
1625568
From other research, the number after the - (dash) is a manufacturers revision number. Perhaps a slight redesign, or a new batch of manufacturing. The source I found indicated that a -2 was a replacement for a -1.
1618218
Yes polarity matters. I don't know which is + or - however. I tested it one way, didn't work, reversed the polarity, worked.
55378
Yes you could use a 2.0. The number refers to the width just like you suspected.
2022912
I really don't know. I have always used 4 and never thought about using 2. I don't know why you could use just 2 though.
2023439
Use the arrows at the top of the calculator if you have done a formula. Unfortunately other than that if you are just adding and subtracting you can not look back.
23444
Use AA batteries × 2. If you have any questions please feel free to ask. Have a great day!!
518943
No, 2.5 is what the whole world calls F; HB is #2...they are very similar with F being slightly lighter , meaning less sharpening requiredAlso, those scanning test papers take any pencil as long as you darken it enough, bu tmost school pupils/teachers do not know much about pencils, they are only aware #2 and like sheep repeat #2 etc...using 2.5 should be no problem....now, using #4 Ticonderonga for example which is 2H (somewhat puts down somewhat light grey line) may be more difficult to darken the circle, not that it cannot be done but harder...H stands for hard and B stands for bold or black No, 2.5 is what the whole world calls F; HB is #2...they are very similar with F being slightly lighter , meaning less sharpening requiredAlso, those scanning test papers take any pencil as long as you darken it enough, bu tmost school pupils/teachers do not know much about pencils, they are only aware #2 and like sheep repeat #2 etc...using 2.5 should be no problem....now, using #4 Ticonderonga for example which is 2H (somewhat puts down somewhat light grey line) may be more difficult to darken the circle, not that it cannot be done but harder...H stands for hard and B stands... » Read More No, 2.5 is what the whole world calls F; HB is #2...they are very similar with F being slightly lighter , meaning less sharpening requiredAlso, those scanning test papers take any pencil as long as you darken it enough, bu tmost school pupils/teachers do not know much about pencils, they are only aware #2 and like sheep repeat #2 etc...using 2.5 should be no problem....now, using #4 Ticonderonga for example which is 2H (somewhat puts down somewhat light grey line) may be more difficult to darken the circle, not that it cannot be done but harder...H stands for hard and B stands for bold or black « Show Less
1751831
Either one or two, but I am leaning toward one!! Sorry I can not remember for sure!!
1240735
It's both or either. There is a an option to select the .5 or the 2.0, which you must choose before you can add it to your cart.
994359
Look at it like a piece of paper. For instance, if you want to subtract 20 from 100, you have to write down 100 first - right? The same principle applies here. First clear anything you have in there, then: enter 100 > hit plus sign > enter 20 > hit the red button above the plus sign. Youe screen should now read 80. Hope this helps!