Search found 82 matches

by Lady Isabella
Sun Apr 24, 2011 7:32 pm
Forum: Telescopes and instruments
Topic: Carl Zeiss Jena 10x50W Jenoptem binoculars.
Replies: 48
Views: 26169

Daivd I have some Henoldt binoculars which I find are very nice. I remember reading that Zeiss were so taken by the Dialyt design that they went and bought shares in Hensoldt, of course over time Hensoldt was merged into Zeiss like you say. I think that my all time favourite binocular/ telescope mak...
by Lady Isabella
Sun Apr 24, 2011 2:18 pm
Forum: Telescopes and instruments
Topic: Carl Zeiss Jena 10x50W Jenoptem binoculars.
Replies: 48
Views: 26169

So yes Zeiss and other German firmsmake optics of the highest quality, although Taylor Hobson lenses were often better. It is a great shame that no British firm seems to be making binoculars now whereas at least five German factories still have German manufactured binoculars. David I second this, s...
by Lady Isabella
Tue Mar 29, 2011 8:24 pm
Forum: Telescopes and instruments
Topic: Batteries
Replies: 14
Views: 3562

David Frydman wrote:Dear Isabella,
NiMH batteries just lose their charge after two months or so but charge up fine.
.
Many thanks David.
by Lady Isabella
Tue Mar 29, 2011 6:43 pm
Forum: Telescopes and instruments
Topic: Batteries
Replies: 14
Views: 3562

David - Interesting stuff, I am a bit confused when you say that a normal Ni-MH battery will be dead after being put away for a couple of months.Do you mean it simply loses it charge, or the battery is no longer fit for use? I only ask this for I have been using the same 4 AA Ni-MH in my digital com...
by Lady Isabella
Sun Feb 27, 2011 11:29 pm
Forum: Telescopes and instruments
Topic: Refractor Objective Lens Structure
Replies: 20
Views: 5080

I must admit that I've never seen a cemented lens in a BC astronomical scope before.

Out of interest, are a couple of links to Patrick Moore's BC scope.
http://www.telescopehouse.com/acatalog/Servicing.html

http://www.telescopehouse.com/acatalog/ ... copes.html
by Lady Isabella
Sun Feb 27, 2011 10:40 pm
Forum: Telescopes and instruments
Topic: Refractor Objective Lens Structure
Replies: 20
Views: 5080

The scope does sound like the smaller Starboy scope similar
to this one from the 1920s.

http://www.philharrington.net/broadhurst1-200.JPG
by Lady Isabella
Sat Feb 05, 2011 11:43 pm
Forum: Telescopes and instruments
Topic: Carl Zeiss Jena 10x50W Jenoptem binoculars.
Replies: 48
Views: 26169

The 20x60 Russian Kronos binoculars are still being made by ZOMZ ( Zagorsk Optical-Mechanical Factory), I don't think that I seen any made by Komz (Kazan Optical-mechanical Factory). Looking at my old Soviet Union manual and the new Kronos manual, the binoculars are exactly the same in specification...
by Lady Isabella
Sat Feb 05, 2011 10:57 pm
Forum: Telescopes and instruments
Topic: Carl Zeiss Jena 10x50W Jenoptem binoculars.
Replies: 48
Views: 26169

Regarding Russian Tento binoculars, Tento was an export department, their name appeared on lots of things exported to the west. The majority of the Tento binoculars were manufactured by ZOMZ . Another factory Komz, also supplied binoculars, nowadays Komz sign their binoculars with the name "Bai...
by Lady Isabella
Sat Feb 05, 2011 10:31 pm
Forum: Telescopes and instruments
Topic: Carl Zeiss Jena 10x50W Jenoptem binoculars.
Replies: 48
Views: 26169

quote] A more careful look in daylight also shows that the numbers can be read and are J-B241 (for the right side) and J-E15 (for the left) -l and r refering to to sides as you look through them and not as you read them and the J s are sloping. regards mike[/i][/quote] Mike - Your binoculars were ma...
by Lady Isabella
Tue Jul 27, 2010 9:19 am
Forum: Telescopes and instruments
Topic: old telescope, advice/instructions needed
Replies: 18
Views: 6023

Here are a couple of links to a Wray scope. http://www.aberdeenshire.gov.uk/museums/visit/exhibitions.asp and one for sale at the moment. http://www.astrobuysell.com/uk/propview.php?view=35559 The problem with identifying these old scopes is that many companies, like T.Cooke, Wray, Ross, Watson and ...
by Lady Isabella
Mon Jul 26, 2010 7:24 pm
Forum: Telescopes and instruments
Topic: old telescope, advice/instructions needed
Replies: 18
Views: 6023

Graham. The scope you have there is extremely similar, if not identical to several telescopes I've seen made by W. Wray of London. On Wray scopes the lens cell is simply screwed into the tube, if you un-screw the lens cell, you may find it says WRAY LONDON or indeed another makers mark if not Wray.
by Lady Isabella
Fri Jan 15, 2010 12:14 am
Forum: Absolute beginners
Topic: Glowing balls in the sky
Replies: 45
Views: 16630

The plane has now been identified as a Lockheed L-1011.
I also managed to find its number and where it is operating from.
by Lady Isabella
Tue Jan 12, 2010 6:22 pm
Forum: Absolute beginners
Topic: Glowing balls in the sky
Replies: 45
Views: 16630

While most of the orange lights I see at night are Chinese lanterns, I have now seen over the last couple of months, an aircraft that is using Anti-collision lights that are different from those I normally observe on aircraft at night. On the first occasion I saw a very bright orange ball going Sout...
by Lady Isabella
Tue Jan 12, 2010 12:38 pm
Forum: Observing
Topic: How many clear days?
Replies: 11
Views: 2128

Well in spite of the cloud and rain, I was able to make astronomical observations on 215 days during 2009. The final figure would have been more, but I could not be bothered getting out bed on some occasions.
by Lady Isabella
Tue Jan 12, 2010 12:29 pm
Forum: General chat
Topic: 1645 to 1715 Maunder minimum are we seeing somthing similar?
Replies: 16
Views: 4167

This is where your local library is a great source of information. In my case, they have every edition of our local paper for the past 150 years on film. Over the years I've made notes of all the fireballs, meteors, comets, eclipses etc that have been reported in the paper. I've also made notes of b...