Gun sight image size analysis

[BulletVI]

Eh boumer have you tried this i know its wikepedia but hey it looks good


http://en.wikipedia.org/wiki/Gyro_gunsight

There's also this one

http://www.429sqn.ca/acmgs.htm

I like this one aswell Boumer

http://forum.axishistory.com/viewtopic.php?p=160621&sid=51c60b7d43f1923c2bb9a94c598a6ff1
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[hitech]

It is really very simple I can choose any number for the max mills of the texture maps,it is no more then typing in 1 number, but the texture maps must all ways be a power of 2 in size. I.E. 128 256 512

So the reason I choose 128 is that it makes 1 or 2 pixels = 1 mill and hence easy to make correct size rings on the bit maps.

No mater how big the real gun sight is 128 mills is the same size on the screen if your head position is at the same distance from the sight. If the sight is to small you will not see the ring unless you move your head closer to the sight.

The FW's just make 128 mills with the head position at default.

HiTech

[Saxman]

Thanks for the explanation.

So the reason I choose 128 is that it makes 1 or 2 pixels = 1 mill and hence easy to make correct size rings on the bit maps.

Which is why I'd suggest using 256.

The BMP files for reticules are already limited to a max of 256x256 as it is, and this would keep it as 1px = 1mil on all sizes (so 256x256, 128x128, and 64x64, etc. would all be 1px = 1mil) rather than 1px/mil at one size, (128) and 2px/mil with another (256).





(I did miscalculate the size of the Revi 16. The cross would actually be larger than 256mil, closer to 300. However I don't know if it would really be possible to increase the max size of reticules to 512mil unless the max size of the BMP file was upped as well).

[hitech]

64 2 mill = 1 pix
128 1 mill = 1 pix
256 0.5 mill = 1 pix


saxman quick math for 128 mills.

Just multiple sight width * 8 and that is how far you head must be away from the sight to get 128 mills edge to edge of the sight.

I.E. 4 " wide sight you head must be 32 " back for 128 mills on the edge of the sight.

HiTech

[AKDogg]

I have just found Alot of german gunsight material.  Will post the files as soon as I get them all.  They are all in pdf format.  Only problem is I need a german translation,lol.

[AKDogg]

Here is the link to the PDF's.  They are all zipped into 1 easy file.  There about 12 files within the zip.  Every document is in german from the WWII (original manuals).

www.arabian-knights.org/files/Dogg/Germangunsights.zip



Here is the link where I got them from.  Also on this websight is anything u want to know about German stuff from WWII including v1 rockets, planes etc..  Alot of detailed original manuals etc.

http://deutscheluftwaffe.de/archiv-englisch/dokumente/web/new%20site/frames2/Dokumente.htm

[Saxman]

I know it doesn't provide much information on the size of the sight, but I did some close studying of the Type 98 in this vid Dogg linked:

http://www.youtube.com/watch?v=NXsVg8F91t8

There's five rings altogether, with a hash mark on the cross between each ring. The interval between each ring is the same, so if we can determine how many mils any given ring is across, that should get us the size of the entire sight. IE, if the inner ring is at 50mil, that means the others would be at 100, 150, 200 and 250, respectively.

[Baumer]

That's a great find AKDogg, I've had that sight bookmarked for well over 2 years and never noticed that section.   

Looking at those pdfs we can cross reference a lot of the info to the Japanese instrument website to find similarity's.


Speaking about translations I'm sure Wmaker or Snailman can help maybe? If not I'm sure some of the Jg11 guys can help as well.

[BulletVI]

Guys as long as we are on the subject of gunsights can we please have 2 different film recording options.

By that i mean No 1 is the normal film recording we have and 2 a separate film recording function for gun cam film that films like the real thing. And i know that the British Mk II sight had that capability from some of my research for this Topic.

http://forum.axishistory.com/download/file.php?id=11876&sid=cd27d2e4bc5d3b83228cf057139f7fd7

I mean it would be cool for Me even tho i can do it with out this capability but there are those who are in the game and just joining it who want to do films like this. So isn't it easier for all to just simplify it all to 2 different recording capabilities.

Thanks what ever the descion

BulletVI

PS you dont have to have them record in Black And White that can be added later just with the Sight visible

[jay]

I made it myself. I'll be going back and doing some tweaks (Needs to be more reddish orange and more glowy) sometime.

cool  hey if u can (and dont mind) post a link to download the file or something for the gunsight?

[AKDogg]

Here is a doc on the San Giorgio tipo sight.

External circle diameter: 2x118= 236 mrad
Internal circle diameter: 2x60= 120 mrad
Distance between two consecutive dots: 28 mrad
These figures were clearly stated in the Official Gunsight Manual

[Kazaa]

I read this thread, my head exploded.

[Saxman]

cool  hey if u can (and dont mind) post a link to download the file or something for the gunsight?

You can grab it in the second post on Page 10 of this thread. Just save it as a BMP file. As of the way things are being set right now, you'll want to use the 128x128 image. I'm still hoping hitech could be convinced or bribed to use 256mil as the max, in which case the other image in that post would work.

[OSU]

I read this thread, my head exploded.

  Yeah, that happened to me too. I understood the first 2 pages, I saw that hitech was changing the sights, and that was it for me.

[gyrene81]

Why are you guys talking about womens handbags?   

Reticule = a woman's drawstring bag used especially as a carryall


Reticle = a grid or pattern placed in the eyepiece of an optical instrument, used to establish scale or position