Thanks, that clarifies the nature of the device.
Hul
Clifford Heath <no_spam@please.net> wrote:
> On 29/9/22 01:15, Hul Tytus wrote:
> > Clifford - was the focus lever marked with the focal distance?
> The focal distance was on the base of the lens tube, the way it usually
> is on manual-focus lenses. The lever was a knob on the side of that,
> adjacent the body.
> Clifford Heath
> > Clifford Heath <no_spam@please.net> wrote:
> >> On 28/9/22 07:12, Hul Tytus wrote:
> >>> Clifford - I'll that term a try. Do you rember if that Leica displayed
> >>> the range found or just used it for it's own purposes?
> >
> >> There were two little lenses about 5cm apart, and a viewfinder that
> >> combined the two images, presumably with a half-silvered mirror. One of
> >> the view lenses was visible through a mirror steered by a mechanical
> >> linkage to the focus lever. The linkage had the correct geometry to
> >> track the focal distance.
> >
> >> Clifford Heath
Reply by Clifford Heath●September 28, 20222022-09-28
On 29/9/22 01:15, Hul Tytus wrote:
> Clifford - was the focus lever marked with the focal distance?
The focal distance was on the base of the lens tube, the way it usually
is on manual-focus lenses. The lever was a knob on the side of that,
adjacent the body.
Clifford Heath
> Clifford Heath <no_spam@please.net> wrote:
>> On 28/9/22 07:12, Hul Tytus wrote:
>>> Clifford - I'll that term a try. Do you rember if that Leica displayed
>>> the range found or just used it for it's own purposes?
>
>> There were two little lenses about 5cm apart, and a viewfinder that
>> combined the two images, presumably with a half-silvered mirror. One of
>> the view lenses was visible through a mirror steered by a mechanical
>> linkage to the focus lever. The linkage had the correct geometry to
>> track the focal distance.
>
>> Clifford Heath
Reply by Hul Tytus●September 28, 20222022-09-28
Martin - I took a look at the ebay pages. There was a
"Watameter shoe mount rangefinder" that I bought. A bit of a gamble
but that's part of ebay. I do appreciate your suggestions for
these were the first found on the internet.
Hul
Martin Brown <'''newspam'''@nonad.co.uk> wrote:
> On 26/09/2022 21:50, Hul Tytus wrote:
> > Thanks Martin - I'll give Surplus Shack a look and try again with Google
> > and Yahoo.
> >
> > Hul
> There is the odd ex WWII one that comes up on eBay from time to time.
> I have no idea if they are in good working condition but some look
> plausible (if a little overpriced for what they are). eg.
> There is a Yashica one on the same page that looks quite nice.
> Laser rangefinders are all the rage now.
> >
> > Martin Brown <'''newspam'''@nonad.co.uk> wrote:
> >> On 26/09/2022 17:07, Hul Tytus wrote:
> >>> Anyone familiar with the optical device for measuring distance that
> >>> is similar to a dual telescope. You look at an object and adjust the
> >>> device to bring the 2 images together. The distance to the object is
> >>> then indicarted. Some may just indicate the angle. The one's I've seen
> >>> were about 12 inches wide and 1 or 2 deep.
> >>> Google only showed laser this & laser that; advertizers only apparantly.
> >>> Any ideas on where such devices might be sold or what a
> >>> suitable search term would be.
> >
> >> They are a bit out of fashion these days. Try Surplus Shack or similar.
> >> Keyword you want are optical range finder.
> >
> >> https://en.wikipedia.org/wiki/Coincidence_rangefinder
> >
> >> Once popular with photographers, golfers and the military.
> >
> >> --
> >> Regards,
> >> Martin Brown
> --
> Regards,
> Martin Brown
Reply by Hul Tytus●September 28, 20222022-09-28
Clifford - was the focus lever marked with the focal distance?
Hul
Clifford Heath <no_spam@please.net> wrote:
> On 28/9/22 07:12, Hul Tytus wrote:
> > Clifford - I'll that term a try. Do you rember if that Leica displayed
> > the range found or just used it for it's own purposes?
> There were two little lenses about 5cm apart, and a viewfinder that
> combined the two images, presumably with a half-silvered mirror. One of
> the view lenses was visible through a mirror steered by a mechanical
> linkage to the focus lever. The linkage had the correct geometry to
> track the focal distance.
> Clifford Heath
Reply by Clifford Heath●September 27, 20222022-09-27
On 28/9/22 07:12, Hul Tytus wrote:
> Clifford - I'll that term a try. Do you rember if that Leica displayed
> the range found or just used it for it's own purposes?
There were two little lenses about 5cm apart, and a viewfinder that
combined the two images, presumably with a half-silvered mirror. One of
the view lenses was visible through a mirror steered by a mechanical
linkage to the focus lever. The linkage had the correct geometry to
track the focal distance.
Clifford Heath
Reply by Hul Tytus●September 27, 20222022-09-27
There was one on ebay/usa but the atendant verbiage implied nonworking. I'll
give the ones you mentioned a look. Who knows, shipping may be possible.
Hul
Martin Brown <'''newspam'''@nonad.co.uk> wrote:
> On 26/09/2022 21:50, Hul Tytus wrote:
> > Thanks Martin - I'll give Surplus Shack a look and try again with Google
> > and Yahoo.
> >
> > Hul
> There is the odd ex WWII one that comes up on eBay from time to time.
> I have no idea if they are in good working condition but some look
> plausible (if a little overpriced for what they are). eg.
> There is a Yashica one on the same page that looks quite nice.
> Laser rangefinders are all the rage now.
> >
> > Martin Brown <'''newspam'''@nonad.co.uk> wrote:
> >> On 26/09/2022 17:07, Hul Tytus wrote:
> >>> Anyone familiar with the optical device for measuring distance that
> >>> is similar to a dual telescope. You look at an object and adjust the
> >>> device to bring the 2 images together. The distance to the object is
> >>> then indicarted. Some may just indicate the angle. The one's I've seen
> >>> were about 12 inches wide and 1 or 2 deep.
> >>> Google only showed laser this & laser that; advertizers only apparantly.
> >>> Any ideas on where such devices might be sold or what a
> >>> suitable search term would be.
> >
> >> They are a bit out of fashion these days. Try Surplus Shack or similar.
> >> Keyword you want are optical range finder.
> >
> >> https://en.wikipedia.org/wiki/Coincidence_rangefinder
> >
> >> Once popular with photographers, golfers and the military.
> >
> >> --
> >> Regards,
> >> Martin Brown
> --
> Regards,
> Martin Brown
Reply by Hul Tytus●September 27, 20222022-09-27
The one I saw was inexpensive, ie nothing fancy, for the consumer market.
The larger ones were possibly aimed at specific markets, military, survey etc.
Hul
Jasen Betts <usenet@revmaps.no-ip.org> wrote:
> On 2022-09-26, Hul Tytus <ht@panix.com> wrote:
> > Anyone familiar with the optical device for measuring distance that
> > is similar to a dual telescope. You look at an object and adjust the
> > device to bring the 2 images together. The distance to the object is
> > then indicarted. Some may just indicate the angle. The one's I've seen
> > were about 12 inches wide and 1 or 2 deep.
> > Google only showed laser this & laser that; advertizers only apparantly.
> > Any ideas on where such devices might be sold or what a
> > suitable search term would be.
> >
> > Hul
> coincidence rangefinder, I've never seen one that small.
> --
> Jasen.
Reply by Hul Tytus●September 27, 20222022-09-27
Clifford - I'll that term a try. Do you rember if that Leica displayed
the range found or just used it for it's own purposes?
Hul
Clifford Heath <no_spam@please.net> wrote:
> On 27/9/22 02:07, Hul Tytus wrote:
> > Anyone familiar with the optical device for measuring distance that
> > is similar to a dual telescope. You look at an object and adjust the
> > device to bring the 2 images together. The distance to the object is
> > then indicarted. Some may just indicate the angle. The one's I've seen
> > were about 12 inches wide and 1 or 2 deep.
> > Google only showed laser this & laser that; advertizers only apparantly.
> > Any ideas on where such devices might be sold or what a
> > suitable search term would be.
> I used to have a 1950's Leica with the "split image rangefinder".
> I think that's the search term you need to use.
> Clifford Heath.
Reply by Martin Brown●September 27, 20222022-09-27
On 26/09/2022 21:50, Hul Tytus wrote:
> Thanks Martin - I'll give Surplus Shack a look and try again with Google
> and Yahoo.
>
> Hul
There is the odd ex WWII one that comes up on eBay from time to time.
I have no idea if they are in good working condition but some look
plausible (if a little overpriced for what they are). eg.
https://www.ebay.co.uk/itm/125518890546
Photographers ones are smaller, less accurate and cheaper Kodak eg
https://www.ebay.co.uk/itm/295231781933
There is a Yashica one on the same page that looks quite nice.
Laser rangefinders are all the rage now.
>
> Martin Brown <'''newspam'''@nonad.co.uk> wrote:
>> On 26/09/2022 17:07, Hul Tytus wrote:
>>> Anyone familiar with the optical device for measuring distance that
>>> is similar to a dual telescope. You look at an object and adjust the
>>> device to bring the 2 images together. The distance to the object is
>>> then indicarted. Some may just indicate the angle. The one's I've seen
>>> were about 12 inches wide and 1 or 2 deep.
>>> Google only showed laser this & laser that; advertizers only apparantly.
>>> Any ideas on where such devices might be sold or what a
>>> suitable search term would be.
>
>> They are a bit out of fashion these days. Try Surplus Shack or similar.
>> Keyword you want are optical range finder.
>
>> https://en.wikipedia.org/wiki/Coincidence_rangefinder
>
>> Once popular with photographers, golfers and the military.
>
>> --
>> Regards,
>> Martin Brown
--
Regards,
Martin Brown
Reply by Jasen Betts●September 27, 20222022-09-27
On 2022-09-26, Hul Tytus <ht@panix.com> wrote:
> Anyone familiar with the optical device for measuring distance that
> is similar to a dual telescope. You look at an object and adjust the
> device to bring the 2 images together. The distance to the object is
> then indicarted. Some may just indicate the angle. The one's I've seen
> were about 12 inches wide and 1 or 2 deep.
> Google only showed laser this & laser that; advertizers only apparantly.
> Any ideas on where such devices might be sold or what a
> suitable search term would be.
>
> Hul
coincidence rangefinder, I've never seen one that small.
--
Jasen.