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Glasses & magnifying devices

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rgray

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#1
My old eyes aren't getting any better. I use old timer "readers" most all the time now. 1.5's work pretty well for me.
But when I want to see something better that I'm working on in the lathe/mill I grab some 3.5's so I can get a better view. Problem is sometimes it's hard to get my face close enough for a good focus. I know I could simply hold them away from my face and get the distance right or grab a magnifying glass.
But I have been into the dentist a couple of times lately and noticed the loops they wear. I have plenty of eye loops also but the dentist is working with them at a long focal distance so that intrigued me.
It took me a bit to find them. Key search word being dental makes it easy."Long focal length eye loop" got me nothing.
So a set of Bosh & lomb's starts out about $500.00....ouch. Chatted with my hygienist and she said she had $2000.00 into her's with rechargeable lights vs corded battery pack light. Double ouch.

So I'm starting out with these: http://www.ebay.com/itm/Brand-New-D...e=STRK:MEBIDX:IT&_trksid=p2060353.m2749.l2649

And so far I like them. Takes some adjusting to get the bino vision right. I decided to skip the light part, they are available with the light for about $20.00 more.
The light would be more effective on regular loops as by the time you get it close to the work for focus and get your head down there to see there is no light left.
With the long focal length loops the machine light is unobstructed so light so far is not a problem.

I do a lot of head nodding...like with bifocals as much of the time I am loking not through the loops. Now if I just had 1.5 lenses on the main glasses I'd be set.

My wife saw them and laughed and laughed...then took a picture with her cell phone and who knows who she's sending that to. .I don't care...they work for me.
 

rgray

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#3
Have you ever looked at OPTIVISOR?
I have one.
I didn't realize they were available in different focal lengths.
I obviously got the wrong focal length for what I wanted to use it for.
I just searched for a lens like my dental loops I'm not finding a 3.5 with that focal length though for the Opti.
 

Bob Korves

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#4
Key search word being dental makes it easy."Long focal length eye loop" got me nothing.
Try searching for "loupe."
 

rgray

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#5
Try searching for "loupe.
Google actually corrected my spelling for me. What would I do without them.
My son used to get some great deals on ebay by searching with misspellings (most wouldn't find those listing)
But then ebay got good with spell correction also. So that was the end of that and a bonus to the seller who couldn't spell.
 

Rockytime

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#6
At 79 I also need vision help. I read with 1.5X and repair clocks and mini machine with 3.5X. I have 3 Optivisors and several similar of different brands, even one with flip down and interchangeable lens. I don't use them because they keep slipping no matter how tight. I guess if I were bald they would work better. I like the afore mentioned because they have a working distance of about 16 inches. I also like that they have nose pads keeping the lens in place. For under $40 I'll give them a try. I hope I can deal with binocular system.
 

GLCarlson

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#7
Optivisors are OK, but focal length at higer mag is a problem, and limited magnification is also an issue. The dental telescopes (that is, Gallilean telescopes) work well, but good ones are expensive. The dental assistant versions -cited- are at best OK; Chinese QC is iffy. I've tried all of these. And more.

Best answer I've seen is a camera and display screen set-up. No need to get your nose right into the work, the camera is small and can magnify just fine. With a 10-15 inch screen, visibility is no problem.
 

whitmore

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#8
I looked into the dentist-type items; Design for Vision is one supplier. They're fixed-distance,
though, and have to be custom-fitted.

More friendly, is the videocam/monitor used as a magnifier like
(about 8.5 minutes in). If my thrift-store digital cameras can
do real-time video output, there's a spare analog flatscreen monitor set aside for this. Finding the right
video CABLE to connect an old model digicam, is a challenge. Distance from the moving parts AND closeup
viewing: what a combination!

My longer-term plan is to wallmount a stereo microscope in the cleanest part of the shop, not taking
up any table space, just on an arm so it can swing over the bench. Kind of a gantry-mount stereozoom.

The status quo is one of those headstrap lens things, because my loupes aren't easy to keep
in place, and there's never enough hands.
 

Rockytime

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#9
That would be ideal if there were enough room for a camera let alone room for a monitor. Not a lot of room on a Sherline.
 

woodchucker

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#10
I looked into the dentist-type items; Design for Vision is one supplier. They're fixed-distance,
though, and have to be custom-fitted.

More friendly, is the videocam/monitor used as a magnifier like
(about 8.5 minutes in). If my thrift-store digital cameras can
do real-time video output, there's a spare analog flatscreen monitor set aside for this. Finding the right
video CABLE to connect an old model digicam, is a challenge. Distance from the moving parts AND closeup
viewing: what a combination!

My longer-term plan is to wallmount a stereo microscope in the cleanest part of the shop, not taking
up any table space, just on an arm so it can swing over the bench. Kind of a gantry-mount stereozoom.

The status quo is one of those headstrap lens things, because my loupes aren't easy to keep
in place, and there's never enough hands.
Thanks for the link, that was great.
 

Bamban

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#11
I just repurposed one of my SLR zoom lenses that the autofocus died. I can focus on the work piece without getting near the chuck.
 

rgray

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#12
More friendly, is the videocam/monitor used as a magnifier
I had seen his videos and camera set up. Definitely a brilliant guy.
I've wanted to set up a camera like he has but haven't gotten around to it yet.
I did get one of the chinese microscopes that will output to a screen but have had trouble with their software, so haven't gotten it working yet.
 

bill stupak

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#13

gradient

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#14
I'm about to repurpose an old cell phone by using a phone holder with a tripod interface on it (1/4-20 thread), about $8 and attach it to one of my magnetic bases with a flexible arm. Download the free apt "Magnifier Plus HD" from the aps store and you can get up to 8X magnification at pretty long distances. The program also can turn on the cell phone LED for a nice spotlight on the work. Just leave it on the charger all the time and the magnifier and light is always ready to go and I can look at the image with both of my old, nearsighted eyes. While you're at it you can also put the free program "Machining Mate" on the cell phone too. Lots of useful calculators and converters for shop use.

Example tripod holder: https://www.amazon.com/Ulanzi-Tripo...coding=UTF8&psc=1&refRID=50PJECDTKBMCNX15TKVK
 

whitmore

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#15
I did get one of the chinese microscopes that will output to a screen but have had trouble with their software, so haven't gotten it working yet.
The Gelbart solution was an automobile backup camera/screen, and those are OK, but the camera has to be
refocusable for closeup (hard to find that feature through internet merchants), and those are all
composite video (so, 320 x 240 is a typical resolution). You also have to supply power and deal with
a jumble of cables/connectors. It's an oldschool analog video camera/display, but all the
modern displays are digital, with no camera-suitable inputs, so you need the 'special' analog
one from the auto backup solution. Mostly, the backup (and doorbell-cam) videocams are very
wide-angle, which isn't optimum.

USB cams require, alas, very smart monitors (basically, a PC). As you've seen, not all cams are
suitable for all computer/OS setups. Bootup time, power usage, complexity argues against that,
but I've got an iMac and Firewire camera sitting on the shelf, so... maybe that'll happen.

A good snapshot camera that has mini-DVI or displayport output, and a monitor, would be nearly ideal.
Zoom, focus, megapixel resolution, even good color rendition. Alas, when I connect my Canon
Powershot SX230 DVI output to my Asus display, I find that it doesn't do the right thing- screen
just stays blank. Maybe you have to record and then playback? Or read the manual to find a few
extra settings to make magic happen? It's gonna take a menu seek-and-coerce operation
every time I hit the switch, unless it just CAN'T work.
 

tq60

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#16
Visit the eyeglass place that advertises 2 pair for cheap with exam or your regular place.

Ask for occupation glasses.

This is where they place the card used for reading at some other distsnce.

Measure the comfortable working distance for your task then have them place the card at that distance.

Now they can dial in whatever you want.

The more zoom the narrower the depth of field.

We did this for our clock bench and it was a miracle.

Sent from my SAMSUNG-SGH-I337Z using Tapatalk
 

rgray

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#17
I'm about to repurpose an old cell phone by using a phone holder with a tripod interface on it
that reminds me. I bought a cheap endoscope camera. I think i got it on amazon for $11.00. The android app links to this brand: http://www.camerafi.com/

And it goes down the rifle barrel (what I wanted it for) but the focal length is much longer. It's all blurry in the rifle barrel but when it gets near the end of the barrel you get a clear view of the wall out the end of the barrel.
It hooks up to a cell phone and as soon as you plug it in it turns on with no fussing.
It may make a nice machining camera like Dan Gelbart uses. With the advantage that the camera itself is very small and light. But the magnification is not high.
 

xman_charl

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#20
been using these for several years...

P1020032.JPG




Charl
 
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#21
^^^^^This is what I use as well^^^^^or a Loupe comparator.
 
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benmychree

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#22
I am up to 1.75 lenses in my cheaters at age 72; it is wonderous how many fewer chips and crud that I get in my eyes since I was forced to wear them!
 
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#23
Heres some magnifying devices I use.
IMG_1202.JPG
The Behr is from the 60's as is the hand held Japanese Loupe. The clear base with the notches straddle different scales and of course the cheapo HF handheld magnifying glass is handy as well.
The hand held Japanese Loupe comparator work well. The notched magnifier over a fine scale.
IMG_1203.JPG IMG_1207.JPG IMG_1206.JPG
On one mill theres a classic florescent lit magnifier from the 70's.
IMG_1208.JPG
I had 20/10 vision until the age of 41, now at 54 I need all the help I can get. I now weld with cheaters too.

All these magnifiers (except the cheap HF one) where given to me by a retired tool and die maker. I always take time to stop in on him and his wife to see if they need anything. Bill is a cool dude with a ton of stories from his days at Hugh's aircraft starting in the early 50's.
 

rgray

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#24
I now weld with cheaters too.
Welding and trying to read the info on a transmission tag (trans in vehicle) were the first things that made me get magnifying glasses.
Neither one of those thing allowed me to back up to get what I was looking at in focus. Up till that time I hadn't realised how my eyes had changed on me.
 

rgray

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#25
Use bifocal safety glasses available from many vendors including McMaster-Carr
Nice. Didn't know they had all those.
Now if there was just a pair that were 1.5 and then 3.5 on the bottom they would be perfect for me.
 

rgray

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#26

kvt

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#27
Bad thing is I already need and have bifocals, Have one of the headlights that have magnifiers that flip down. But have to get to close to use them, Have the magnifying lights like Firestoper has, But oil etc get on them. Have looked for a nice size magnifying glass to keep with the lathes. Have thought about the dental/surgeons loops but have not found any that work on my glasses, they all come on ones that will not fit over my glasses. So I am like all the suggestions.
 

Rockytime

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#28
KVT, I have the same problem. I drive without glasses. I wear 1.5X cheaters to read and use 3.5 X to work on clocks and model engines. I received my 3.5X dental binoculars this afternoon and have been trying them. They are very nicely made, come in a very nice hard, zippered and fitted case. They adjust nicely, are comfortable to wear but I find that they have a very narrow field of vision. Also like you I keep having to change glasses constantly. I find for me it is a poor investment. They may come in handy for inspection work but not for what I do. I guess at $32 I have not lost the family farm.
 

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kvt

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#29
I'm still trying to figure a way to mount them on my normal glasses since they flip up. By the way I like the little engine behind your glasses in the photo .
 

Rockytime

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Just finished the little engine. Have not yet tried to run it. I have an appointment soon with my ophthalmologist very soon. I am supposed to be wearing trifocals. I will find out if the lower lens can be 3.5X. Years ago I would have a magnifying reticle mounted in the the upper left corner of the lens on my glasses. I don't remember the power but it worked so well. Just like a jeweler's loupe except it was fastened to the lens with UV cement. I always had it done for about $30. It was done by an optician. Now they are requesting $125 and up which I cannot afford. Many places will not even consider doing it.

I'm still trying to figure a way to mount them on my normal glasses since they flip up. By the way I like the little engine behind your glasses in the photo .
 
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