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Magnifying the passion for nature. Zeiss Victory Harpia 95. New!

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Search: Posts Made By: Binastro
Forum: Binoculars Yesterday, 20:59
Replies: 15
Views: 340
Posted By Binastro
Hi Synaps, 'You put your left arm in, your left...

Hi Synaps,

'You put your left arm in, your left arm out, you shake it all about. You do the Hokey Cokey. That's what its all about.
You put your right arm in, your right arm out, you shake it all...
Forum: Binoculars Yesterday, 17:04
Replies: 15
Views: 340
Posted By Binastro
Ain't Amazon wonderful?

Ain't Amazon wonderful?
Forum: Binoculars Yesterday, 16:57
Replies: 15
Views: 340
Posted By Binastro
That is a beastly thing to say. Insulting our...

That is a beastly thing to say.
Insulting our beloved politicians (:

As to the binocular.
Amazon repacked reject?
Forum: Spotting Scopes & tripod/heads Yesterday, 16:27
Replies: 27
Views: 750
Posted By Binastro
It may be that the Seeing or steadiness of the...

It may be that the Seeing or steadiness of the air in the San Francisco Bay area is never good. In which case a good telescope won't really help.
However, sometimes it might be good.

A colleague has...
Forum: Binoculars Friday 15th December 2017, 15:32
Replies: 15
Views: 340
Posted By Binastro
Chinese binocular?

Chinese binocular?
Forum: Binoculars Friday 15th December 2017, 15:20
Replies: 15
Views: 340
Posted By Binastro
Hi Synaps, A photo would help. Could be coating...

Hi Synaps,
A photo would help.
Could be coating faults or even fungus.
It depends how much of a bargain it is, but if fungus reject it.
Forum: Spotting Scopes & tripod/heads Thursday 14th December 2017, 15:04
Replies: 27
Views: 750
Posted By Binastro
Hi etudiant. post 19. The pocket scopes are...

Hi etudiant. post 19.
The pocket scopes are difficult to use if one is not an expert as the metal bits may need bending slightly to get best images.
Also I think that they are very difficult to make...
Forum: Spotting Scopes & tripod/heads Wednesday 13th December 2017, 21:09
Replies: 27
Views: 750
Posted By Binastro
If one wants real low weight telescopes one could...

If one wants real low weight telescopes one could look up Horace Dall's pocket scopes.
He made dozens from 2.5 inch to 6 inch aperture.
They folded to fit in his pocket including folding tripod...
Forum: Spotting Scopes & tripod/heads Wednesday 13th December 2017, 20:09
Replies: 27
Views: 750
Posted By Binastro
You are correct Alan. On bad days in daylight...

You are correct Alan.
On bad days in daylight even 30x is sometimes a turbulent mess.

I should point out that the clock face was upside down with nothing but objective and ortho eyepiece.

I have...
Forum: Spotting Scopes & tripod/heads Wednesday 13th December 2017, 18:53
Replies: 27
Views: 750
Posted By Binastro
Dear Alan, The observing conditions were not...

Dear Alan,
The observing conditions were not exceptional, as I could repeat the observation with any of the 3 scopes on good nights.
However, we have a temperate climate and quite often static...
Forum: Spotting Scopes & tripod/heads Wednesday 13th December 2017, 15:35
Replies: 27
Views: 750
Posted By Binastro
Hi Alan. I have 3 identical 120mm aperture custom...

Hi Alan.
I have 3 identical 120mm aperture custom made aluminium tube simple scopes. Grey enamel? It was cheaper to get three at the same time. No finders. I don't need them as I use a low power...
Forum: Spotting Scopes & tripod/heads Tuesday 12th December 2017, 07:42
Replies: 27
Views: 750
Posted By Binastro
Joachim, Sorry to hear that. Difficult to find...

Joachim,
Sorry to hear that.

Difficult to find another.
Zeiss built three 300mm binoculars on huge altazimuth mounts. c. 1940, but I don't think they survived.
Leitz built a huge photographic lens...
Forum: Spotting Scopes & tripod/heads Monday 11th December 2017, 22:00
Replies: 27
Views: 750
Posted By Binastro
Or if one wants to do a really good job....

Or if one wants to do a really good job. (:

APM/LZOZ 304mm f/7.5 Super Bino on supplied mount.

Binocular 400Kg.
Complete with mount 2000Kgs.

I saw about $300,000 mentioned, but if interested one...
Forum: Spotting Scopes & tripod/heads Monday 11th December 2017, 14:18
Replies: 27
Views: 750
Posted By Binastro
The best spotting scopes seem to be a Swarovski...

The best spotting scopes seem to be a Swarovski 95 with one or two extenders or a Kowa 88 and similar.
Maybe $5,000? new.

However, a trip to a good local astro dealer would probably allow better...
Forum: Spotting Scopes & tripod/heads Monday 11th December 2017, 11:26
Replies: 27
Views: 750
Posted By Binastro
Hi opus, For ten miles. Firstly you need the Sun...

Hi opus,
For ten miles.
Firstly you need the Sun behind you or at least to the side.
You need height to avoid mirage.
At 60ft height the sea horizon is 10 miles, but you need higher and the city...
Forum: Zeiss Sunday 10th December 2017, 18:54
Replies: 18
Views: 966
Posted By Binastro
At night, the larger the exit pupil, the worse...

At night, the larger the exit pupil, the worse the star images are for me.
But the images are brighter with larger exit pupils.

People with small amounts of astigmatism do better with smaller exit...
Forum: Leica Sunday 10th December 2017, 18:38
Replies: 33
Views: 1,964
Posted By Binastro
Hi Michael, Miksi ei? It's only money. Terve.

Hi Michael,
Miksi ei?

It's only money.

Terve.
Forum: Zeiss Sunday 10th December 2017, 15:53
Replies: 18
Views: 966
Posted By Binastro
I find that many binoculars give me a good view...

I find that many binoculars give me a good view at the 6 o'clock position closer than the focus point at the centre.
I thought this was due to field curvature, but this may be due to both field...
Forum: Canon Sunday 10th December 2017, 15:38
Replies: 13
Views: 553
Posted By Binastro
Woke up late to a white world. The 18x50 image...

Woke up late to a white world.
The 18x50 image stabilizer worked well on the chimney 120m away and the falling snowflakes looked fine at about that distance. The DOF isn't great so one can focus on...
Forum: Canon Saturday 9th December 2017, 21:03
Replies: 13
Views: 553
Posted By Binastro
Hi Stan, Flat on top of the soft case. I am...

Hi Stan,
Flat on top of the soft case. I am surprised I noticed the green light in daylight.
The observation was very brief, perhaps a minute. I realised I needed much more magnification to read the...
Forum: Zeiss Saturday 9th December 2017, 20:54
Replies: 18
Views: 966
Posted By Binastro
Field curvature or other...

Field curvature or other aberrations.

Astigmatism is pretty obvious if one looks at a bright star. It appears as a short or longer line.

An optician will quickly give an opinion.
Forum: Binoculars Saturday 9th December 2017, 19:19
Replies: 44
Views: 1,457
Posted By Binastro
''Disgusted of Tunbridge Wells'' is another group.

''Disgusted of Tunbridge Wells'' is another group.
Forum: Canon Saturday 9th December 2017, 19:10
Replies: 13
Views: 553
Posted By Binastro
Canon 18x50 IS anomaly

There was a strange small box on the wall 40m away, and someone was doing something with it. The second time this mystery box had a visitor.
Alien communicator perhaps?

Being interested, I looked at...
Forum: Binoculars Wednesday 6th December 2017, 20:02
Replies: 22
Views: 1,054
Posted By Binastro
Don't know about DOF but I was able to measure...

Don't know about DOF but I was able to measure distances of a mile, maybe more, with the 317mm Dall Kirkham, 4650mm focal length, just by the focus position of the eyepiece compared to the stars.
So...
Forum: Canon Wednesday 6th December 2017, 15:23
Replies: 13
Views: 772
Posted By Binastro
Unbelievable photos Lee. I think that I have...

Unbelievable photos Lee.

I think that I have just been able to hear some sound with the IS binoculars right up against my ear, but I'll check. I think less sound means less energy consumption.

My...
Showing results 1 to 25 of 1000
 


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