I purchased a hand held magnifier which was advertised as 8X but the

manification was less than the 5X I had been using. I purchased it from

a company in Canada. Is the standards different in Canada or did I get

ripped off?

I would contact them and find out if you got shipped the wrong magnifier.

That's happened to me before. The standards are the same worldwide.



Jen



-----Original Message-----

From: magnifiers@yahoogroups.com [mailto:magnifiers@yahoogroups.com] On

Behalf Of randall2845

Sent: Saturday, October 25, 2008 11:34 AM

To: magnifiers@yahoogroups.com

Subject: [magnifiers] Magnifier standards



I purchased a hand held magnifier which was advertised as 8X but the

manification was less than the 5X I had been using. I purchased it from

a company in Canada. Is the standards different in Canada or did I get

ripped off?

I got the right magnifier. I got a 10X pocket magnifier and it magnifies less

than the 5X Bausch & Lomb I have been using. Maybe the Chinese supplier

misrepresented them to the company. I could not believe that they could sell a

10X pocket magnifier for $3.99. I did contact them and they Sid I was the only

one to have complained.

----- Original Message -----

From: "Jennifer Jesso" <jen_jesso@...>

To: <magnifiers@yahoogroups.com>

Sent: Saturday, October 25, 2008 2:43 PM

Subject: RE: [magnifiers] Magnifier standards





I would contact them and find out if you got shipped the wrong magnifier.

That's happened to me before. The standards are the same worldwide.



Jen



-----Original Message-----

From: magnifiers@yahoogroups.com [mailto:magnifiers@yahoogroups.com] On

Behalf Of randall2845

Sent: Saturday, October 25, 2008 11:34 AM

To: magnifiers@yahoogroups.com

Subject: [magnifiers] Magnifier standards



I purchased a hand held magnifier which was advertised as 8X but the

manification was less than the 5X I had been using. I purchased it from

a company in Canada. Is the standards different in Canada or did I get

ripped off?













------------------------------------



The Screen Magnifiers Homepage

http://www.magnifiers.org

Make It Visible!







Yahoo! Groups Links

I do believe magnifiers vary in quality, though I'm not sure how this works.

I had a low vision specialist once show me two magnifiers that were both 10x

power, but I was not able to see the print with one and was able to see it

with the other. He said the difference was the optics, and of course the one

that was better was much more expensive, by several hundred dollars. So I do

think price makes a difference in quality, which could affect the resulting

image quality.



Do you mind mentioning which company you bought it from? I'm just curious.



Jen

Magnifiers vary extremely in quality. If you have ever been fitted with

glasses you'll remember the better worse game which those of us with low

vision usually only can play in full diopter increments, but which others

play in quarter diopter jumps. Better worse adn be at the same magnification

with other perameters changed in the lense. Also a well cut, finely made

lens is going to give clearer magnification than the plastic one from the

crack-n-the-Jack box (look ma! no copyright infringement)... If you can see

the difference, good magnifying glasses are a better buy. If you can't see

it, don't bother.



There are all sorts of formulas I no longer remember about magnification

because I haven't worked inthe field for decades now. But magnification on

your CCTV is different from that with your hand held lens. 16 diopter

handheld lens will give you 4 X magnification I believe in other words it

takes 4 diopters to increase the image one time height and width. Some

devices such as bar magnifiers only magnify in one direction so you get tall

skinny characters when looking at print with the height magnified and the

width left alone.

  So my expensive specticle mounted 65 diopter magnifier is giving me just a

tad over 15X magnification. Do the math as I"m too old for it, but this

means that the  5 X magnifier is 20 diopters and the 8 X is 32 diopters.

Differences can certainly be accounted for by quality of lens and

manufacturing standards. That much of a difference so you'd read better with

the 5X than the 8X...possibly. But be sure you're comparing apples to

apples. Is the 8X really 8X or is it 8 diopters which would only give you

2X? That would make a huge difference.



If you wish to prolong this headache go read

http://www.bertech.com/product8/magnifi_notes.htm

for the details in other words probably more accurate than mine.



A lesson here is if you ccan't afford the expensive, good quality lenses,

get a stronger lens in the lower priced version than you think you need and

give it a go.



While they were saying among themselves it cannot be done, it was done.

Helen Keller



Kathy Seven Williams













[Non-text portions of this message have been removed]

I'm told diopters is a more accurate way to compare mags.  The $3.99 price

would have been a red flag for me.







Barbara



   _____



From: magnifiers@yahoogroups.com [mailto:magnifiers@yahoogroups.com] On

Behalf Of Jennifer Jesso

Sent: Saturday, October 25, 2008 4:31 PM

To: magnifiers@yahoogroups.com

Subject: RE: [magnifiers] Magnifier standards







I do believe magnifiers vary in quality, though I'm not sure how this works.

I had a low vision specialist once show me two magnifiers that were both 10x

power, but I was not able to see the print with one and was able to see it

with the other. He said the difference was the optics, and of course the one

that was better was much more expensive, by several hundred dollars. So I do

think price makes a difference in quality, which could affect the resulting

image quality.



Do you mind mentioning which company you bought it from? I'm just curious.



Jen







No virus found in this incoming message.

Checked by AVG - http://www.avg.com

Version: 8.0.175 / Virus Database: 270.8.3/1745 - Release Date: 10/25/2008

5:55 PM









[Non-text portions of this message have been removed]

I got them from the following link.  I just emailed him and asked him to check

them out. He said he is totally blind himself, but would have someone to do it

for him. You may be correct about the quality makes a difference.



http://www.braillebookstore.com/view.php?C=Hands-On+Braille

----- Original Message -----

From: "Jennifer Jesso" <jen_jesso@...>

To: <magnifiers@yahoogroups.com>

Sent: Saturday, October 25, 2008 4:31 PM

Subject: RE: [magnifiers] Magnifier standards





I do believe magnifiers vary in quality, though I'm not sure how this works.

I had a low vision specialist once show me two magnifiers that were both 10x

power, but I was not able to see the print with one and was able to see it

with the other. He said the difference was the optics, and of course the one

that was better was much more expensive, by several hundred dollars. So I do

think price makes a difference in quality, which could affect the resulting

image quality.



Do you mind mentioning which company you bought it from? I'm just curious.



Jen





------------------------------------



The Screen Magnifiers Homepage

http://www.magnifiers.org

Make It Visible!







Yahoo! Groups Links

Thanks for the information. These magnifiers do say 8X and 10X they don't give

the diopter. They are round and they are clear image just not as large as they

should be.

----- Original Message -----

From: "Kathy Seven Williams" <kseven@...>

To: <magnifiers@yahoogroups.com>

Sent: Saturday, October 25, 2008 8:33 PM

Subject: RE: [magnifiers] Magnifier standards





Magnifiers vary extremely in quality. If you have ever been fitted with

glasses you'll remember the better worse game which those of us with low

vision usually only can play in full diopter increments, but which others

play in quarter diopter jumps. Better worse adn be at the same magnification

with other perameters changed in the lense. Also a well cut, finely made

lens is going to give clearer magnification than the plastic one from the

crack-n-the-Jack box (look ma! no copyright infringement)... If you can see

the difference, good magnifying glasses are a better buy. If you can't see

it, don't bother.



There are all sorts of formulas I no longer remember about magnification

because I haven't worked inthe field for decades now. But magnification on

your CCTV is different from that with your hand held lens. 16 diopter

handheld lens will give you 4 X magnification I believe in other words it

takes 4 diopters to increase the image one time height and width. Some

devices such as bar magnifiers only magnify in one direction so you get tall

skinny characters when looking at print with the height magnified and the

width left alone.

  So my expensive specticle mounted 65 diopter magnifier is giving me just a

tad over 15X magnification. Do the math as I"m too old for it, but this

means that the  5 X magnifier is 20 diopters and the 8 X is 32 diopters.

Differences can certainly be accounted for by quality of lens and

manufacturing standards. That much of a difference so you'd read better with

the 5X than the 8X...possibly. But be sure you're comparing apples to

apples. Is the 8X really 8X or is it 8 diopters which would only give you

2X? That would make a huge difference.



If you wish to prolong this headache go read

http://www.bertech.com/product8/magnifi_notes.htm

for the details in other words probably more accurate than mine.



A lesson here is if you ccan't afford the expensive, good quality lenses,

get a stronger lens in the lower priced version than you think you need and

give it a go.



While they were saying among themselves it cannot be done, it was done.

Helen Keller



Kathy Seven Williams













[Non-text portions of this message have been removed]





------------------------------------



The Screen Magnifiers Homepage

http://www.magnifiers.org

Make It Visible!







Yahoo! Groups Links

Magnifiers should really be selected based on their diopter power, this is

the standard mewsurement.  There is no standard for magnification.





In a message dated 10/25/2008 2:34:38 P.M. Eastern Daylight Time,

loyrg2845@... writes:









I purchased a hand held magnifier which was advertised as 8X but the

manification was less than the 5X I had been using. I purchased it from

a company in Canada. Is the standards different in Canada or did I get

ripped off?









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http://www.games.com?ncid=emlcntusgame00000001)





[Non-text portions of this message have been removed]

The closer the magnifier is held to your eye, the greater the magnification

will be.  So if you hold the magnifier close to your eye and move the page

you are looking at for focusing instead of moving the magnifier, you will get

greater magnification.

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http://www.games.com?ncid=emlcntusgame00000001)





[Non-text portions of this message have been removed]

You might want to search under Geology hand lenses.  You can buy a

fine B&L 10X magnifier for under $50.  Any more than $100 is always a

rip-off.



My favorite hand lens is a "blade" on the Victornox Swiss Arny knife.



On Sun, Oct 26, 2008 at 2:34 AM,  <Haverp@...> wrote:

> The closer the magnifier is held to your eye, the greater the magnification

> will be.  So if you hold the magnifier close to your eye and move the page

> you are looking at for focusing instead of moving the magnifier, you will get

> greater magnification.

> **************Play online games for FREE at Games.com! All of your favorites,

> no registration required and great graphics – check it out!

> (http://pr.atwola.com/promoclk/100000075x1211202682x1200689022/aol?redir=

> http://www.games.com?ncid=emlcntusgame00000001)

>

>

> [Non-text portions of this message have been removed]

>

>

> ------------------------------------

>

> The Screen Magnifiers Homepage

> http://www.magnifiers.org

> Make It Visible!

>

>

>

> Yahoo! Groups Links

>

>

>







--

---================

Keep Shooting!

BruceHP@(*).com

==================