Thread: A bit more about optics

About chinese triplets
Chinese loupe named "triplet"(left) and normal triplet(right)


So it's not a 30x or 20x - it's about 10x.
and it's not a triplet in real - just a monocle system.
+ there is no CA correction like normal triplets have
+ no distortion correction

Originally Posted by RayClem

....
MAD: Magnifier Acquisition Disorder.

and i think MAD is the best name for this, because prices aren't good
(see Swiss Axe Triplet Hawk link -- i wish to unseen this pokemon -- better to collect eschers).
...
Wait a minute..SAD? Sounds like a new hobby
mad sad had in all its manifestations

I love seeing magnified pictures of a straight razors edge as it get honed progressively on finer and finer grit stones. What’s the best magnifying system for that?

Honestly - I don't have enought information on this theme.
Not rich enought to make another journey
----------

I know that DinoLite is nice (AM413T -- see video and pic review)
but it's about 300-400USD or more(link)
- i'm too greedy. That's what I think about to buy to myself sometimes..But I need to sell all(or at least first hundred of them) my stones first

Hozan could be good - http://www.hozan.co.jp/E/catalog/Optical/index.html

Or Nikon SMZ, Olympus VM - not enought information, but they are expensive.
Pavol Šandor(youtube) uses Nikon SMZ:
Microscope SMZ-168 Trinocular + reduction + NIKON D7000


And that inexpensive chinese and near digital microscopes not good for my eyes - it's like I'm in the childhood with quake 1.
The only one inexpensive and not so bad that i know: Supereyes B008
(

https://www.youtube.com/watch?v=ZUAAq0avKUU

)


And there is a variant with chinese C-mount USB camera
how it looks like https://yadi.sk/d/zsLnpfEoyHFqH
Matrix size is 1/2.5, 5MP.
primers
https://yadi.sk/d/xEYbi6_doQkxw
https://yadi.sk/d/a_d_u6Trpz2kW
https://yadi.sk/d/2t1BcpnIpi3W4
it's about 200 USD

Or this one

https://www.youtube.com/watch?v=MuOWkjqVfEE&t=37m37s

it's C-mount camera too, but don't know exactly wich is.
Just know that it's something like Digital HD 16MP 1080P HDMI USB 300X Industrial Electronic Video Microscope Camera Set

So I use this

and don't want to think about new type of HAD (Photographic..PAD? mh..not original any more)
Olympus E-3 + Zuiko 70-300 + reverse ring adapter + Zuiko 50mm.
How it works
http://en.wikipedia.org/wiki/Macro_photography


Focusing -- is a headache - all manual.

Result is good
Hindostan


Omura


Opinel Stainless + typic LI


Victorinox + Suehiro G-8

My old set: Olympus C-7070 + Peak 2008-50
like this:
(src: http://blogs.yahoo.co.jp/marimari0530/28208744.html)


Result:


And here https://straightrazorpalace.com/hone...ml#post1484034
you can see more (photos with scale)

My friend use Samsung NX + various lenses
https://www.flickr.com/photos/oldtor/
And that is another level




=========
Main theme about this How to make a photo (RUS)
but I still have not done with sorting and compiling -- it will not be soon.

If you want something inexpensive:
chinese USB isn't good variant, imho.






Kenko Do-Nature STV40M - 20x
CNat Pandod JY ~2000-3000JIS


Kenko Do-Nature STV120M - 60x
the same

Or cheap chinese mini-microscope:







1 div=0.5mm.


===========
Smartphone variant:

Loupe or microscope


Loupe is better when you are sharpening something not sraight. Like razor with smiling line of the edge.
So microscope isn't easy to use in this case, because you need to spend time to:
- focuse on the edge
- depth of field is small - you spend time to refocus from one area to another, from edge to bevel
- you need more light
- the angle range of lightning, that give you informative image is also more narrow

But it's not common for every loupe.
Good loupe with 10x power is nice.
15x - is darker but still good (Peak 2023 15x, Peak 1985 Steinheil 14x).
20x - is too dark and hard to focuse.
Even Peak 1964 22x, that isn't cheap, isn't better than acrlylic microscope Kenko STV40M (20-40x). Actually, Kenko is even more usable.

So for rouge honing, repairing etc - sharpening stages below 1000grit - 10x loupe is more comfortable and faster.
But if we are talknig about small details(~20mkm. and less), sharpening at 3000 grit stage and thinner, some research purpose - microscope 40-60x helps a lot ("must have").