Forums.NitroExpress.com

Home | Ezine | Forums | Links | Contact NitroExpress.com: A very nice Fraser 256 Mannlicher Take-Down

View recent messages : 24 hours | 48 hours | 7 days | 14 days | 30 days | 60 days | More Smilies

*** Enjoy NitroExpress.com? Participate and join in. ***

You are not logged in. [Login]

Main Index · Search · Active Topics
New user · Who's Online · FAQ · Calendar

Shooting & Reloading - Mausers, Big Bores and others >> Mannlicher Discussion forum & Archive

Rothhammer1
.400 member

Reged: 06/01/17
Posts: 1818
Loc: The Redwoods of California

Re: A very nice Fraser 256 Mannlicher Take-Down
09/03/20 01:15 PM

Quote:

Is that a peep sight or a diopter?

Vlad

It looks rather like a Lyman 1A:

Images from (of course) the 1939 Stoeger catalog:

Tomato, tomatoe?

I would call all of these 'aperature sights'. The catalog descriptions refer to the smaller aperature that flips down on some models as a "turn down peep".

Here is someone else's attempt to tell us what a 'diopter sight' is: Ask Foghorn

Diopter and globe sight picture (diopter rear, globe front sights).

An optician's point of view regarding another applied use of the word 'diopter' (from Lindsey Optics):

Diopter is a unit of measurement, much like other units of measurement such as millimeters, meters, inches, etc. It's not a physical thing that you can pick up and hold. It's a unit of measurement.

We don't call lenses "Millimeters", We call them lenses, with a notation of focal length measured in millimeters. So for example we could describe a specific lens as a "50mm f2 lens" we wouldn't call it a "Millimeter".

Likewise, we should refer to close-up lenses just that way, as close-up lenses. So one description would be: "138mm Round +1 Diopter Close-Up Lens". That describes the size of the lens (138mm diameter), the power of the lens (+1 diopter) and the type of lens (Close-Up Accessory Lens).

Now all of that said, it seems that "Diopter" has become the standard name for these things and despite some annoyance, we've used it too, because it's standard. Stupid, but standard . . .

--------------------
Citizen of the Cherokee Nation

Post Extras

Print Post

Remind Me!

Notify Moderator

Entire topic
Subject	Posted by	Posted on
A very nice Fraser 256 Mannlicher Take-Down	Waidmannsheil	20/11/18 08:40 AM
Re: A very nice Fraser 256 Mannlicher Take-Down	DarylS	20/11/18 09:06 AM
Re: A very nice Fraser 256 Mannlicher Take-Down	Sarg	20/11/18 01:22 PM
Re: A very nice Fraser 256 Mannlicher Take-Down	Rothhammer1	20/11/18 07:58 PM
Re: A very nice Fraser 256 Mannlicher Take-Down	DarylS	20/11/18 08:18 PM
Re: A very nice Fraser 256 Mannlicher Take-Down	Rothhammer1	21/11/18 03:49 PM
Re: A very nice Fraser 256 Mannlicher Take-Down	NitroX	20/01/19 08:03 AM
Re: A very nice Fraser 256 Mannlicher Take-Down	Dogfish858	20/01/19 11:04 AM
Re: A very nice Fraser 256 Mannlicher Take-Down	Vladymere	21/01/19 02:10 PM
Re: A very nice Fraser 256 Mannlicher Take-Down	Rothhammer1	09/03/20 01:15 PM
Re: A very nice Fraser 256 Mannlicher Take-Down	yumastepside	09/03/20 09:32 AM
Re: A very nice Fraser 256 Mannlicher Take-Down	bouldersmith	09/03/20 11:34 PM
Re: A very nice Fraser 256 Mannlicher Take-Down	yumastepside	09/03/20 11:55 PM
Re: A very nice Fraser 256 Mannlicher Take-Down	lancaster	21/11/18 06:51 AM
Re: A very nice Fraser 256 Mannlicher Take-Down	yumastepside	21/11/18 08:19 AM
Re: A very nice Fraser 256 Mannlicher Take-Down	paradox_	21/11/18 08:55 AM
Re: A very nice Fraser 256 Mannlicher Take-Down	yumastepside	21/11/18 09:10 AM
Re: A very nice Fraser 256 Mannlicher Take-Down	450_Ackley	21/11/18 12:24 PM
Re: A very nice Fraser 256 Mannlicher Take-Down	93x64mm	22/11/18 07:15 AM
Re: A very nice Fraser 256 Mannlicher Take-Down	cordite	21/11/18 01:10 PM

Extra information

0 registered and 10 anonymous users are browsing this forum.

Moderator: CptCurl

Forum Permissions
      You cannot start new topics
      You cannot reply to topics
      HTML is disabled
      UBBCode is enabled

Rating:
Thread views: 6542

Jump to

NitroExpress.com

Powered by UBB.threads™ 6.5.5

Home | Ezine | Forums | Links | Contact

Copyright 2003 to 2011 - all rights reserved