Optivisor, binocular loupes, microscope, and magnification

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Re: Optivisor, binocular loupes, microscope, and magnificati

Postby Glen G » Sun Nov 17, 2013 7:27 pm

Boy!
Dave, I'd be careful who you share that picture with :P
I think the prices vary on these High was about $125 w/light. But lately i see them for around $60, lite included. Question, are the lenses glass or plastic?
Thanks for the review…………….and the photo.
-G
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Re: Optivisor, binocular loupes, microscope, and magnificati

Postby Dave R » Sun Nov 17, 2013 8:06 pm

Hi Glen

I think they are glass, but I don't know.
I do know after about 2 hours The bridge of my nose gets pretty sore from the weight.
And because of that I prefer an external light source.
My sawing starts to go wonky after about 2 hours so it works out.

The working distance is about 16" which works well for me for sawing at the bench.

By the way, I think that photo puts Richard Avedon to shame :wacky:

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Re: Optivisor, binocular loupes, microscope, and magnificati

Postby Dave R » Sat Nov 11, 2017 11:16 pm

I thought I would revive this older post on optics.
I don't want to hijack Jack's thread on tsuba.

Albert Et Al,

I just got my binoculars down off the nail and used them again.
They take a little bit of fiddling with but do really work for me.
If I could change anything it would be a wider field of view.
But once they are set up right they do work.
Mine are 3.5X by 420.
The 420 is the focal length in mm I think.
That would be a little more than 16 inches.
The good news is they have come down in price.

https://www.ebay.com/sch/i.html?_from=R ... +&_sacat=0
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Re: Optivisor, binocular loupes, microscope, and magnificati

Postby Dave R » Sat Nov 11, 2017 11:38 pm

I just found some of these on Amazon with a much wider field of view.
I will keep you posted.

OK. I just ordered a pair of these.

https://www.amazon.com/s/ref=nb_sb_noss ... tifog+Blue

Magnification is less but field of view is wider.

I'll let you know how they work after I receive them.
Last edited by Dave R on Sun Nov 12, 2017 8:35 am, edited 1 time in total.
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Re: Optivisor, binocular loupes, microscope, and magnificati

Postby Mac » Sun Nov 12, 2017 5:52 am

Keen to see how they work out, Mr. Dave.
I bought a similar pair but the field of vision was bad and flexing/misalignment of the frame left me even more 'eye wonkey' than usual ;-) Obviously metal frames would be the solution but surgical grade optical gear is extremely expensive. An eye surgeon friend lent me a top of the line pair for a day and they were truly stunning but so was the price.
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Re: Optivisor, binocular loupes, microscope, and magnificati

Postby Dave R » Sun Nov 12, 2017 8:40 am

Hey Mac

Apparently you can give up magnifcation and gain a wider field of view.

We shall see.
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Re: Optivisor, binocular loupes, microscope, and magnificati

Postby Dave R » Thu Feb 08, 2018 12:01 am

I finally ended up with these.

https://www.amazon.com/s/ref=nb_sb_noss ... 110+3.5X-R

The field of view is about twice that of my first pair and I didn't have to give up magnification.
The nice thing about these are they will clip over your prescription glasses and just magnify.
The other ones I couldn't use with other glasses because of the way they were attached to the frame. :(

But it's like Jack said, they are fairly heavy, so sawing time is limited.

The good news is with a little fiddling, they work well for me. :-D
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Re: Optivisor, binocular loupes, microscope, and magnificati

Postby Mac » Thu Feb 08, 2018 2:27 am

How do they compare to an optivisor ?
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Re: Optivisor, binocular loupes, microscope, and magnificati

Postby Dave R » Fri Feb 09, 2018 2:47 am

Hi Mac,

I use a number 4 optivisor lens.
I use it with corrective eyeglasses.
The working distance with the #4 optivisor and corrective eyeglasses is about 7 inches.

With the clip-ons and the correcive lenses the working distance is about 13 inches for me.
The magnification is 2 to 3x greater than the optivisor.
The field of view is about 100mm,(they say 130mm) which is twice the original pair that I bought.
They advertised 60mm, but it is less.

It's more comfortable not to be hunched over the work for extended periods of time.
Basically, I use the clip-ons for sawing. However I may find other uses as time goes on.
I think they are going to be good for wax work.

They are a bit heavy as noted earlier, but doable.

Hope that helps.
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