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Carpetsahib
.333 member

Reged: 29/04/07
Posts: 435
Loc: Western NC

Re: Diamond front sight [Re: Rustyzipper]
#79346 - 25/05/07 02:57 AM

Here is a shotgun sight just completed. These will also be available with Yellow Diamond, Ruby or Yellow Sapphire inserts. I don't have pricing just yet on these new options.

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Carpetsahib
.333 member

Reged: 29/04/07
Posts: 435
Loc: Western NC

Re: Diamond front sight [Re: Carpetsahib]
#79430 - 26/05/07 10:30 PM

Here is a rifle sight with a 1.8mm yellow diamond installed.

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hoppdoc
.400 member

Reged: 02/03/06
Posts: 1791
Loc: Southeastern USA

Re: Diamond front sight [Re: Carpetsahib]
#79432 - 26/05/07 10:39 PM

Wow!

I like it!

--------------------
An armed man is a citizen of his country, an unarmed man just a subject.

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Carpetsahib
.333 member

Reged: 29/04/07
Posts: 435
Loc: Western NC

Re: Diamond front sight [Re: hoppdoc]
#79452 - 27/05/07 03:37 AM

Thanks,
Here are two more photos.

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500Nitro
.450 member

Reged: 06/01/03
Posts: 7244
Loc: Victoria, Australia

Re: Diamond front sight [Re: Carpetsahib]
#79453 - 27/05/07 03:49 AM

Carpetsahib

I am not being negative but how is the diamond supposed
to "shine" when the light is coming from the Muzzle end
of the gun ?

I believe from using them before that not enough of the diamond is stocking out to catch light in low light conditions.

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Carpetsahib
.333 member

Reged: 29/04/07
Posts: 435
Loc: Western NC

Re: Diamond front sight [Re: 500Nitro]
#79456 - 27/05/07 05:39 AM

Quote:

Carpetsahib

I am not being negative but how is the diamond supposed
to "shine" when the light is coming from the Muzzle end
of the gun ?

I believe from using them before that not enough of the diamond is stocking out to catch light in low light conditions.

You make a good point concerning back lighting conditions. You would have a similar problem with a platinum or ivory bead as well.

It is certainly possible to mount the stone in a shallower setting. It would also be possible to use a tubular mounting that would allow backlight to illuminate the stone from the back side (pavilion).

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500Nitro
.450 member

Reged: 06/01/03
Posts: 7244
Loc: Victoria, Australia

Re: Diamond front sight [Re: Carpetsahib]
#79457 - 27/05/07 05:45 AM

Carpetsahib

The WHOLE Point of having a diamond sight is because
it is the one thing that will shine BRIGHTLY in all light
conditions but ESPECIALLY Back lit situations.

And the only way to install the diamond is in a setting
that "sticks out" a bit from the setting so it can catch
the light from behind and then refract it forward towards the shooter.

FYI, the other reason for installing a diamond sight correctly is the sight picture stays the same regardless
of where the light comes from - this is not so with a round brass bead and even a brass bead filed down at 45 degrees.

If you try it one day, you Point of Impact does change from morning to evening - we have a range here where the sun starts in front and finishes behind us and it is interesting when this was picked up.

There is more to Diamond sights that just installing a diamond as I have said in a few posts before.

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EricD
.416 member

Reged: 27/02/04
Posts: 4636

Re: Diamond front sight [Re: 500Nitro]
#79462 - 27/05/07 06:45 AM

500nitro,

Do you have a picture (or could you make a simple drawing) of what you consider an optimal diamond sight?

Erik

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500Nitro
.450 member

Reged: 06/01/03
Posts: 7244
Loc: Victoria, Australia

Re: Diamond front sight [Re: EricD]
#79463 - 27/05/07 06:55 AM

I'll try.

I'll even try to get to a couple of guns
- one mine, a few belong to others.

I can draw how I like it, I can't determine the
type or cut of the diamond (? facets if I recall ?)
as I'm not a jeweller but they would know which type
of cut and what facets to have to refract the light
where we want it from any angle.

Give me a few days.

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bulldog563
.400 member

Reged: 21/10/05
Posts: 1153
Loc: California

Re: Diamond front sight [Re: 500Nitro]
#79466 - 27/05/07 08:03 AM

I would also be very interested in seeing that.

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Rustyzipper
.275 member

Reged: 20/10/03
Posts: 83
Loc: North of the Zambezi, in Miser...

Re: Diamond front sight [Re: Carpetsahib]
#79469 - 27/05/07 09:18 AM

I'll have to bookmark this for posterity. This is a great thread. I am wondering if you could use the correct size tube in which to mount the stone. Then leave the muzzle end open and cut some windows in the tube top if necessary for more light. Thanks for all the pictures. I see that my 412 and my 1895 45-70 will both need these sights. I will get into some pretty dark brushy places on the hunt. Morning and evening it will be a help to seeing the front sight. Rustyzipper

--------------------
NMLRA Life, NRA Annual,DRSS, .......

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Carpetsahib
.333 member

Reged: 29/04/07
Posts: 435
Loc: Western NC

Re: Diamond front sight [Re: Rustyzipper]
#79477 - 27/05/07 11:21 AM

Quote:

I'll have to bookmark this for posterity. This is a great thread. I am wondering if you could use the correct size tube in which to mount the stone. Then leave the muzzle end open and cut some windows in the tube top if necessary for more light. Thanks for all the pictures. I see that my 412 and my 1895 45-70 will both need these sights. I will get into some pretty dark brushy places on the hunt. Morning and evening it will be a help to seeing the front sight. Rustyzipper

Certainly, a tube mounting is possible. And yes, it could be windowed, so to speak. Another possibility is to actually use a 4 to 6 prong mounting - but with the real possibility of loss of the stone if it receives a good bash.

On the other hand, there is the possibility of using a diamond as a window, as it were, and using ^%*^*&% as a light source. Hmmmmm --- I'll have to give this some thought.

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Rustyzipper
.275 member

Reged: 20/10/03
Posts: 83
Loc: North of the Zambezi, in Miser...

Re: Diamond front sight [Re: Carpetsahib]
#79480 - 27/05/07 12:05 PM

Sorry if I asked that question twice. I don't know much about diamonds and how the cut affects the light reflections. RZ

--------------------
NMLRA Life, NRA Annual,DRSS, .......

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Carpetsahib
.333 member

Reged: 29/04/07
Posts: 435
Loc: Western NC

Re: Diamond front sight [Re: Rustyzipper]
#79482 - 27/05/07 12:54 PM

I use diamonds with a "Round Brilliant" cut, which has 58 facets. The top of the stone is called the crown and the flat at the top of the crown is called the table. The bottom of the stone is called the pavilion. The girdle is the largest diameter of the stone and is the part that is clamped in the mount. If the stone is properly cut, light enters the diamond through the crown and is totally reflected from the facets in the pavilion and back up throught the crown. This is the principle of "total internal reflection". It is not necessary for light to be transmitted through the pavilion for a stone to "shine" brilliantly. Incident light from the top is generally sufficient.

Another thought: for a diamond to perform well, it must be kept clean. Buildup of grease, dirt, funk, whatever - should be thoroughly cleaned off. Junk and trash on the pavilion is also detrimental, since it can eliminate the "total internal reflection" principle.

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Rustyzipper
.275 member

Reged: 20/10/03
Posts: 83
Loc: North of the Zambezi, in Miser...

Re: Diamond front sight [Re: Carpetsahib]
#79487 - 27/05/07 11:07 PM

I'm thinking a tube to mount the stone. Maybe just a spray of carb cleaner in the front, let dry, then replace a threaded cap.

RZ

--------------------
NMLRA Life, NRA Annual,DRSS, .......

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500Nitro
.450 member

Reged: 06/01/03
Posts: 7244
Loc: Victoria, Australia

Re: Diamond front sight [Re: Rustyzipper]
#79500 - 28/05/07 06:45 AM

I agree with Carpetsahib, the diamond definately has to be kept clean and they do get dirty, just like Brass beads tarnish and white beads go dull.

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Rustyzipper
.275 member

Reged: 20/10/03
Posts: 83
Loc: North of the Zambezi, in Miser...

Re: Diamond front sight [Re: 500Nitro]
#79801 - 03/06/07 12:41 AM

I agree with you 500 but if you use a tube just lock the front with a screw into the length of the tube. Then remove it to clean with Windex, Carb cleaner or other spray. Dry then reinstall the screw. If the inside of the tube stays bright maybe it will bounce back some lost light. Maybe there is little loss of light. A diamond in brilliant cut seems to be a great multiple prism. Carpetsahib, do those stones lose light behind them if cut right? TIA Rustyzipper

--------------------
NMLRA Life, NRA Annual,DRSS, .......

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Carpetsahib
.333 member

Reged: 29/04/07
Posts: 435
Loc: Western NC

Re: Diamond front sight [Re: Rustyzipper]
#79810 - 03/06/07 03:55 AM

Quote:

I agree with you 500 but if you use a tube just lock the front with a screw into the length of the tube. Then remove it to clean with Windex, Carb cleaner or other spray. Dry then reinstall the screw. If the inside of the tube stays bright maybe it will bounce back some lost light. Maybe there is little loss of light. A diamond in brilliant cut seems to be a great multiple prism. Carpetsahib, do those stones lose light behind them if cut right? TIA Rustyzipper

I/m working on a new design that will eliminate most cleaning issues. A round brilliant cut diamond will pass light from back to front, so backlighting is a good idea. However, a correctly cut stone will exhibit total reflection in the case of a light ray coming in the front. The reflected ray then exits the front, exhibiting a spectrum, exactly like a prism. Thus, diamond's incomparable sparkle.

Here is another shotgun sight, this time with a blue diamond.

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577express
.275 member

Reged: 18/02/07
Posts: 67
Loc: U.S.

Re: Diamond front sight [Re: bonanza]
#79822 - 03/06/07 10:19 AM

I have never heard of such a thing. I would think glare or reflection might be an issue.

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Rustyzipper
.275 member

Reged: 20/10/03
Posts: 83
Loc: North of the Zambezi, in Miser...

Re: Diamond front sight [Re: Carpetsahib]
#84298 - 20/08/07 11:56 AM

Carpetsahib, I'm still saving. RZ

--------------------
NMLRA Life, NRA Annual,DRSS, .......

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500Nitro
.450 member

Reged: 06/01/03
Posts: 7244
Loc: Victoria, Australia

Re: Diamond front sight [Re: 577express]
#84305 - 20/08/07 01:44 PM

Quote:

I have never heard of such a thing. I would think glare or reflection might be an issue.

BS, they work really well, far better than brass beads
that change the POI due to the different light refraction from
the shiny surface depending on where the sun is.

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Rustyzipper
.275 member

Reged: 20/10/03
Posts: 83
Loc: North of the Zambezi, in Miser...

Re: Diamond front sight [Re: 500Nitro]
#86829 - 09/10/07 07:00 AM

Has anyone used one of these sights recently? RZ

--------------------
NMLRA Life, NRA Annual,DRSS, .......

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BigFiveJack
.333 member

Reged: 25/12/05
Posts: 256
Loc: Half hour North of Tampa Bay F...

Re: Diamond front sight [Re: Rustyzipper]
#86903 - 10/10/07 04:39 PM