What is it?

[stranding]

The device is optical in nature.

Wild guess: old telescope or binoculars?

 

[scifan57]

This item has nothing to do with photography. It is a WWI military optical device. The circled area assists in using the device at night.

 

[scifan57]

Wild guess: old telescope or binoculars?

Not an old telescope and not quite a pair of binoculars.

 

[stranding]

What is this? What is the circled area in the second photo and what is it used for?

<img src="http://www.ipadforums.net/attachment.php?attachmentid=19118"/>

<img src="http://www.ipadforums.net/attachment.php?attachmentid=19119"/>

Periscope?

 

[scifan57]

Periscope?

Not a periscope either.

 

[AdmiralAdama]

Is it a monocular sighting device for the M 16 "Blink" signal lamp, used by the Wehrmacht in the Second World War?

AA

 

[stranding]

Not a periscope either.

"not quite binoculars..." ??

The only thing I can think of is a one-eye "scope". We have one for archery. But am very dubious about that being right.

 

[scifan57]

Is it a monocular sighting device for the M 16 "Blink" signal lamp, used by the Wehrmacht in the Second World War?

AA

It is a monocular sighting device,but not for the M 16 "Blink" signal lamp,it's about 3 times larger. It was used by the German Army,but not in WWII. In any case,I don't need the exact designation of the monocular. What I need now is the purpose of the circled area in my second picture.
Here's a photo showing the monocular together with one from the M16 "Blink" signal lamp.

 

[stranding]

It is a monocular sighting device,but not for the M 16 "Blink" signal lamp,it's about 3 times larger. It was used by the German Army,but not in WWII. In any case,I don't need the exact designation of the monocular. What I need now is the purpose of the circled area in my second picture.
Here's a photo showing the monocular together with one from the M16 "Blink" signal lamp.

<img src="http://www.ipadforums.net/attachment.php?attachmentid=19129"/>

Shows the range? By which I mean the distance to what you're looking at?

 

[scifan57]

Shows the range? By which I mean the distance to what you're looking at?

The circled area is not for showing the range of what is being looked at. It's purpose is to enable the device to be used at night. What is this part called?

 

[stranding]

The circled area is not for showing the range of what is being looked at. It's purpose is to enable the device to be used at night.

Ah, forgot that. Pathetic. I must go and do a crossword to keep the Alzheimer's at bay.

 

[scifan57]

The circled area is not for showing the range of what is being looked at. It's purpose is to enable the device to be used at night. What is this part called?

Hint; an accessory shines a light into this area to illuminate something.
A similar device is used in the eyepieces of astronomical telescopes.

 

[stranding]

Hint; an accessory shines a light into this area to illuminate something.
A similar device is used in the eyepieces of astronomical telescopes.

Getting too technical for me. We need Sir Patrick Moore, the Sky at Night man who, would certainly know.

 

[scifan57]

If you put this challenge in the crosshairs,you will solve it.

 

[stranding]

If you put this challenge in the crosshairs,you will solve it.

???