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Search: Posts Made By: Binastro
Forum: Spotting Scopes & tripod/heads Yesterday, 11:26
Replies: 10
Views: 377
Posted By Binastro
DunninLA. Enjoy. Regards, B.

DunninLA.

Enjoy.

Regards,
B.
Forum: Spotting Scopes & tripod/heads Saturday 23rd March 2019, 21:16
Replies: 10
Views: 377
Posted By Binastro
The view of a crow on the chimney pot 124 metres...

The view of a crow on the chimney pot 124 metres away looking through the Skywatcher 90mm Maksutov and using the Televue 45 degree prism at 125 times was bloody marvellous.

But I had to wait for a...
Forum: Spotting Scopes & tripod/heads Saturday 23rd March 2019, 21:08
Replies: 10
Views: 377
Posted By Binastro
I also suggested a 120mm or at a minimum a 100mm...

I also suggested a 120mm or at a minimum a 100mm good quality refractor for this application of long distance viewing.
Indeed, a 6 inch long focus observatory refractor would do well.
The 150mm...
Forum: Binoculars Saturday 23rd March 2019, 17:50
Replies: 12
Views: 277
Posted By Binastro
I think that the Lightwing is a fairly new...

I think that the Lightwing is a fairly new model.
Is the binocular still under warranty?
From Optical Vision Ltd?

The binocular repair experts here will probably answer later.
Unfortunately not my...
Forum: Nikon Saturday 23rd March 2019, 17:41
Replies: 31
Views: 837
Posted By Binastro
Ukorim, that is excellent news. The 2.5 hours...

Ukorim, that is excellent news.

The 2.5 hours labour is probably 200 plus, but done under warranty.

Nikon in the U.K. used to have a very strong team of technicians for professional cameras, so...
Forum: Binoculars Saturday 23rd March 2019, 17:25
Replies: 12
Views: 277
Posted By Binastro
Hi Emil and welcome. What is the binocular...

Hi Emil and welcome.

What is the binocular model?

B.
Forum: Binoculars Friday 22nd March 2019, 15:53
Replies: 20
Views: 604
Posted By Binastro
I got a batch of RTH 4 inch f/1.8 lenses used for...

I got a batch of RTH 4 inch f/1.8 lenses used for aerial photography. They were priced very low, for good reason.
Only 2 out of about 20 were O.K.

Most were opaque because the front elements had...
Forum: Spotting Scopes & tripod/heads Thursday 21st March 2019, 19:15
Replies: 10
Views: 377
Posted By Binastro
I have the Televue Chester NY 45 degree Image...

I have the Televue Chester NY 45 degree Image Erecting Prism AM1-0011 Televue Visionary here in my hand.
It is uncoated, but it is the one I use.
1.25 inch barrel.
I trust Televue.
But if I use a...
Forum: Spotting Scopes & tripod/heads Thursday 21st March 2019, 13:11
Replies: 10
Views: 377
Posted By Binastro
Hi DunninLA. I have used Maksutovs terrestrially...

Hi DunninLA.
I have used Maksutovs terrestrially for well over 40 years.
Particularly the Custom 150mm f/10 at 95x.
From one to five miles typically.

I have written about these scopes for years...
Forum: Swift Wednesday 20th March 2019, 17:35
Replies: 27
Views: 17,441
Posted By Binastro
General Motor Company. Alpha to beta in Ursa...

General Motor Company.

Alpha to beta in Ursa Major is 5 degrees 22 minutes angular distance. The pointer stars to Polaris.

B.
Forum: Spotting Scopes & tripod/heads Wednesday 20th March 2019, 17:27
Replies: 22
Views: 1,123
Posted By Binastro
Yes, it is important to know what detail one is...

Yes, it is important to know what detail one is looking for.

I can identify an Airbus A380 at up to 20 miles at most angles and by how it flies.
A Boeing 747 up to 15 miles.
This is without optical...
Forum: Leica Wednesday 20th March 2019, 17:14
Replies: 48
Views: 3,141
Posted By Binastro
I use Baader Optical Wonder fluid, I think from...

I use Baader Optical Wonder fluid, I think from First Light Optics 11.50?
Follow the instructions given.

However, if I had a binocular with a water resisting coating I would ask an optical expert,...
Forum: Spotting Scopes & tripod/heads Wednesday 20th March 2019, 12:01
Replies: 22
Views: 1,123
Posted By Binastro
Dd, This is an urban location, so the distances I...

Dd,
This is an urban location, so the distances I can see birds is limited by buildings unless they are high in the sky.
Herring gulls don't seem to fly that high, so I can't give a distance. Many...
Forum: Spotting Scopes & tripod/heads Tuesday 19th March 2019, 21:23
Replies: 22
Views: 1,123
Posted By Binastro
Dd, The water temperature and air temperature are...

Dd,
The water temperature and air temperature are a good match. Conditions good.
It may be that there were beach ground effects.

If one is high above the beach it might help, and cloudy conditions...
Forum: Spotting Scopes & tripod/heads Tuesday 19th March 2019, 17:18
Replies: 22
Views: 1,123
Posted By Binastro
Dd, It is good to see the weather described. It...

Dd,
It is good to see the weather described.
It may be better in the morning or evening with the sun behind the observer.

What were you looking at?

I doubt that the sun is overhead at this time of...
Forum: Binoculars Tuesday 19th March 2019, 16:38
Replies: 10
Views: 463
Posted By Binastro
If you change the dioptre setting, can you use it?

If you change the dioptre setting, can you use it?
Forum: Binoculars Tuesday 19th March 2019, 16:18
Replies: 77
Views: 2,333
Posted By Binastro
This morning 3a.m. Fox owns the street, looks...

This morning 3a.m.
Fox owns the street, looks good in binocular.
Street rubbish bin not emptied in three days, so full. Fox got several bags out, maybe some food as he was stretched out on the road....
Forum: Nikon Monday 18th March 2019, 22:35
Replies: 10
Views: 368
Posted By Binastro
Hi Dave, Are you really losing the field of view...

Hi Dave,
Are you really losing the field of view or just comparing circles.

The FOV of the M7 8x30 is advertised as 8.3 degrees, I think, and Nikon are usually accurate.

The bottom two stars of the...
Forum: Others Monday 18th March 2019, 16:46
Replies: 5
Views: 300
Posted By Binastro
Probably 7x35, single blue coated. Perhaps...

Probably 7x35, single blue coated. Perhaps 1960s.
This is a lot better than the extra wide angle Korean binoculars that were very shoddy around 1970s.
The binocular shown seems to be a regular Porro...
Forum: Others Sunday 17th March 2019, 16:46
Replies: 15
Views: 485
Posted By Binastro
Neil, you are more sane than many. Bob, I have...

Neil, you are more sane than many.

Bob, I have enough (:

B.
Forum: Zeiss Friday 15th March 2019, 16:30
Replies: 21
Views: 1,215
Posted By Binastro
That is good news. Enjoy using the binocular. B.

That is good news.
Enjoy using the binocular.

B.
Forum: Nikon Friday 15th March 2019, 12:44
Replies: 31
Views: 837
Posted By Binastro
I just looked at a box of ten now rare 24.5mm...

I just looked at a box of ten now rare 24.5mm eyepieces and a star diagonal.
24.5mm eyepieces fit all sorts of scopes that can't take larger eyepieces.
Such as the Pentax 500mm mirror scope with 45...
Forum: Nikon Friday 15th March 2019, 12:26
Replies: 31
Views: 837
Posted By Binastro
Thanks MandoBear. I suppose we could mount...

Thanks MandoBear.

I suppose we could mount binocular optics in lead, but not nowadays.
Is it so, that some water pipes are still lead?
Forum: Binoculars Friday 15th March 2019, 11:47
Replies: 8
Views: 345
Posted By Binastro
Hi zipjim and welcome. I am surprised the Ricoh...

Hi zipjim and welcome.

I am surprised the Ricoh is fully multicoated, but if it says so, I suppose it is.
Maybe late 1980s?

If it isn't too heavy for you, I would use it for birdwatching.
However,...
Forum: Nikon Friday 15th March 2019, 11:21
Replies: 31
Views: 837
Posted By Binastro
Re.Post 15. Fig. 1.3. This was common in the...

Re.Post 15.
Fig. 1.3.
This was common in the 1980s in Aero Ektar 7 inch f/2.5 lenses made 1940 to 1945.
The coded serial numbers give the date of manufacture.
In fact it was difficult to find a...
Showing results 1 to 25 of 1000
 


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