Selecting Backlit Magnifier for SMD Soldering: Comparing 5 Diopters vs 8 Diopters Options

Unfortunately, the old loupes are without a company, and the new one I bought is Eschenbach x10 (I didn't write with it before) and somehow it didn't suit my grandfather, it's probably too strong.

The stronger the luba - the more distorting is felt.
As I wrote above, the farther we are from the optical axis, the greater the (large) image distortions.
And it's probably bothering grandpa, and it's a little one, and I don't know what the real magnification is.
He probably sees a letter or two at a time, and that irritates him.

Sure I understand it, but I bought a 10 because it uses two 5. It's hard to return and buy either x5 or x7.
Does Eschenbach reliably provide the magnification?

I think it's better to buy (sponsor) good glasses, much better effect.

Alternatively, do the so-called Videolupa.
But the costs.

Unfortunately, it's nothing because my grandfather had an accident in his childhood, he doesn't see the colors, etc., he sees something only from a few centimeters, describing it with his words, "I only see the contours".
Nothing can be done about it, he visited many specialists.

So I suggest going to an ophthalmologist, maybe he will advise something (seriously) - here I give up.
Because such solutions will probably not help you anyway.

http://www.optyk.okulus.pl/elek_pomoce.htm

Approx. Thanks for the info.
He often visits an ophthalmologist.

Such a thing will not come?
http://geeklab.pl/1953/maggie-elektroniczne-lupy-z-ekranem-lcd

One of the solutions for the grandfather may be a medical eyeglass loupe for micro surgical operations. It is great because it has a large field of view and the image is sharp from about 30 cm.
In order for such a magnifier to meet the expectations, it would probably have to be modified to this eye defect.
(Only applicable for reading) Unfortunately, the price is down.
The second: enlarging the image on the screen to a size recognizable by grandfather and choosing glasses.

Added after 17 [minutes]:

tomybb wrote:

I have a 10x magnifying glass - it's useful, sometimes I also use a 20x microscope, such a combination is enough for me - the microscope also has a 40x - I rarely use it, but also useful - it would be better than not. Overall, it seems to me that magnification depends on individual needs.

It would be handy for someone who would be able to construct cheap glasses for electronics, similar to a medical magnifier.
There is quite a lot of scrap from digital cameras available.
Maybe there would be an optician who could comment on this topic, because you know, a short focal length is a big problem when soldering.

saly wrote:

A typical workshop, such as the XTLIV with a basic 10 to 35x magnification, perfectly meets these requirements.

Is it possible to buy something similar on the market today? is it about functionality and the price of, say, PLN 1000-1500?

It recommends a simple device for SMD control, etc., inexpensive and helpful, the disadvantage is a small focal length and when there are some sockets on the board, you cannot push it close, but you can remove one glass from the magnifier and it is much better when it comes to focal length, admittedly magnification it drops slightly but it is ok anyway. Smd control after soldering, this magnifier is also perfect.

https://www.tme.eu/pl/details/fut.sl-71/lupy/engineer/sl-71/